Tire Size Conversion Chart – Metric to Inch Sizes

Last updated on September 3rd, 2026

Choosing the right tire size can be confusing, especially when you need to compare metric sizes with inch-based tire sizes. A Tire Size Conversion Chart makes it easier to see how different tire sizes compare in overall diameter, width, and wheel size.

In this guide, you’ll find practical tire conversion charts, learn how to read tire size markings, and see how to convert metric tire sizes to inches. You’ll also learn the difference between tire diameter and wheel diameter, so you can compare sizes more accurately.

Use the charts as a quick reference, but remember that actual tire dimensions can vary slightly by tire brand and model. For exact fitment, always check the manufacturer’s specifications and your vehicle’s requirements.

Table of Contents

How to Read Tire Size

Tire size markings look complicated at first, but each part tells you something specific. Take 275/70R17 as an example.

275 = tire width in millimeters
70 = aspect ratio, meaning the sidewall height is 70% of the tire width
R = radial construction
17 = wheel diameter in inches

This means the tire is 275 mm wide, its sidewall height is 70% of that width, and it fits a 17-inch wheel.

The last number is easy to misunderstand. 17 does not mean the tire is 17 inches tall. It refers only to the diameter of the wheel the tire is designed to fit.

Read our complete guide: How to Read Tire Size

Tire Size Conversion Formula

You can calculate the approximate overall diameter of a metric tire using its width, aspect ratio, and wheel diameter.

Overall Diameter (inches) = [(Tire Width × Aspect Ratio × 2) ÷ 25.4] + Wheel Diameter

Using 275/70R17:

Sidewall height: 275 × 0.70 = 192.5 mm

Because there are two sidewalls, multiply by 2:

192.5 × 2 = 385 mm

Convert the 17-inch wheel to millimeters:

17 × 25.4 = 431.8 mm

Add the two measurements:

385 + 431.8 = 816.8 mm

Finally, convert the result to inches:

816.8 ÷ 25.4 ≈ 32.2 inches

So, the calculated overall diameter of a 275/70R17 is approximately 32.2 inches.

This formula gives a calculated or nominal diameter, not necessarily the exact physical measurement of a particular tire. Actual dimensions can vary slightly with the tire’s brand, model, construction, inflation pressure, and load.

Tire Conversion Charts by Wheel Size

13-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
105/80R13	19.6 × 4.1R13	19.61″
125/80R13	20.9 × 4.9R13	20.87″
135/70R13	20.4 × 5.3R13	20.44″
135/80R13	21.5 × 5.3R13	21.50″
145/60R13	19.9 × 5.7R13	19.85″
145/70R13	21.0 × 5.7R13	20.99″
145/80R13	22.1 × 5.7R13	22.13″
155/65R13	20.9 × 6.1R13	20.93″
155/70R13	21.5 × 6.1R13	21.54″
155/80R13	22.8 × 6.1R13	22.76″
165/55R13	20.1 × 6.5R13	20.15″
165/65R13	21.4 × 6.5R13	21.44″
165/70R13	22.1 × 6.5R13	22.09″
165/80R13	23.4 × 6.5R13	23.39″
175/60R13	21.3 × 6.9R13	21.27″
175/65R13	22.0 × 6.9R13	21.96″
175/70R13	22.6 × 6.9R13	22.65″
185/60R13	21.7 × 7.3R13	21.74″
185/65R13	22.5 × 7.3R13	22.47″
185/70R13	23.2 × 7.3R13	23.20″
195/60R13	22.2 × 7.7R13	22.21″
195/65R13	23.0 × 7.7R13	22.98″
195/70R13	23.7 × 7.7R13	23.75″
205/60R13	22.7 × 8.1R13	22.69″
205/65R13	23.5 × 8.1R13	23.49″
215/50R13	21.5 × 8.5R13	21.46″
215/60R13	23.2 × 8.5R13	23.16″
225/45R13	21.0 × 8.9R13	20.97″
225/50R13	21.9 × 8.9R13	21.86″
235/45R13	21.3 × 9.3R13	21.33″

14-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
105/70R14	19.8 × 4.1R14	19.79″
115/70R14	20.3 × 4.5R14	20.34″
125/70R14	20.9 × 4.9R14	20.89″
135/80R14	22.5 × 5.3R14	22.50″
145/65R14	21.4 × 5.7R14	21.42″
145/70R14	22.0 × 5.7R14	21.99″
145/80R14	23.1 × 5.7R14	23.13″
155/55R14	20.7 × 6.1R14	20.71″
155/60R14	21.3 × 6.1R14	21.32″
155/65R14	21.9 × 6.1R14	21.93″
155/70R14	22.5 × 6.1R14	22.54″
155/80R14	23.8 × 6.1R14	23.76″
165/60R14	21.8 × 6.5R14	21.80″
165/65R14	22.4 × 6.5R14	22.44″
165/70R14	23.1 × 6.5R14	23.09″
165/80R14	24.4 × 6.5R14	24.39″
175/60R14	22.3 × 6.9R14	22.27″
175/65R14	23.0 × 6.9R14	22.96″
175/70R14	23.6 × 6.9R14	23.65″
175/80R14	25.0 × 6.9R14	25.02″
185/55R14	22.0 × 7.3R14	22.01″
185/60R14	22.7 × 7.3R14	22.74″
185/65R14	23.5 × 7.3R14	23.47″
185/70R14	24.2 × 7.3R14	24.20″
185/80R14	25.7 × 7.3R14	25.65″
195/50R14	21.7 × 7.7R14	21.68″
195/55R14	22.4 × 7.7R14	22.44″
195/60R14	23.2 × 7.7R14	23.21″
195/65R14	24.0 × 7.7R14	23.98″
195/70R14	24.7 × 7.7R14	24.75″
195/75R14	25.5 × 7.7R14	25.52″
195/80R14	26.3 × 7.7R14	26.28″
205/50R14	22.1 × 8.1R14	22.07″
205/55R14	22.9 × 8.1R14	22.88″
205/60R14	23.7 × 8.1R14	23.69″
205/65R14	24.5 × 8.1R14	24.49″
205/70R14	25.3 × 8.1R14	25.30″
205/75R14	26.1 × 8.1R14	26.11″
215/60R14	24.2 × 8.5R14	24.16″
215/65R14	25.0 × 8.5R14	25.00″
215/70R14	25.9 × 8.5R14	25.85″
215/75R14	26.7 × 8.5R14	26.70″
225/50R14	22.9 × 8.9R14	22.86″
225/55R14	23.7 × 8.9R14	23.74″
225/60R14	24.6 × 8.9R14	24.63″
225/70R14	26.4 × 8.9R14	26.40″
235/60R14	25.1 × 9.3R14	25.10″
245/60R14	25.6 × 9.6R14	25.57″

15-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
125/80R15	22.9 × 4.9R15	22.87″
135/70R15	22.4 × 5.3R15	22.44″
145/65R15	22.4 × 5.7R15	22.42″
155/60R15	22.3 × 6.1R15	22.32″
155/65R15	22.9 × 6.1R15	22.93″
155/70R15	23.5 × 6.1R15	23.54″
155/80R15	24.8 × 6.1R15	24.76″
165/50R15	21.5 × 6.5R15	21.50″
165/55R15	22.1 × 6.5R15	22.15″
165/60R15	22.8 × 6.5R15	22.80″
165/65R15	23.4 × 6.5R15	23.44″
165/80R15	25.4 × 6.5R15	25.39″
175/50R15	21.9 × 6.9R15	21.89″
175/55R15	22.6 × 6.9R15	22.58″
175/60R15	23.3 × 6.9R15	23.27″
175/65R15	24.0 × 6.9R15	23.96″
175/70R15	24.6 × 6.9R15	24.65″
185/55R15	23.0 × 7.3R15	23.01″
185/60R15	23.7 × 7.3R15	23.74″
185/65R15	24.5 × 7.3R15	24.47″
185/70R15	25.2 × 7.3R15	25.20″
185/80R15	26.7 × 7.3R15	26.65″
195/45R15	21.9 × 7.7R15	21.91″
195/50R15	22.7 × 7.7R15	22.68″
195/55R15	23.4 × 7.7R15	23.44″
195/60R15	24.2 × 7.7R15	24.21″
195/65R15	25.0 × 7.7R15	24.98″
195/70R15	25.7 × 7.7R15	25.75″
195/80R15	27.3 × 7.7R15	27.28″
205/50R15	23.1 × 8.1R15	23.07″
205/55R15	23.9 × 8.1R15	23.88″
205/60R15	24.7 × 8.1R15	24.69″
205/65R15	25.5 × 8.1R15	25.49″
205/70R15	26.3 × 8.1R15	26.30″
205/75R15	27.1 × 8.1R15	27.11″
215/50R15	23.5 × 8.5R15	23.46″
215/55R15	24.3 × 8.5R15	24.31″
215/60R15	25.2 × 8.5R15	25.16″
215/65R15	26.0 × 8.5R15	26.00″
215/70R15	26.9 × 8.5R15	26.85″
225/45R15	23.0 × 8.9R15	22.97″
225/50R15	23.9 × 8.9R15	23.86″
225/55R15	24.7 × 8.9R15	24.74″
225/60R15	25.6 × 8.9R15	25.63″
225/65R15	26.5 × 8.9R15	26.52″
225/70R15	27.4 × 8.9R15	27.40″
225/75R15	28.3 × 8.9R15	28.29″
235/50R15	24.3 × 9.3R15	24.25″
235/55R15	25.2 × 9.3R15	25.18″
235/60R15	26.1 × 9.3R15	26.10″
235/65R15	27.0 × 9.3R15	27.03″
235/70R15	28.0 × 9.3R15	27.95″
245/60R15	26.6 × 9.6R15	26.57″
245/70R15	28.5 × 9.6R15	28.50″
255/60R15	27.0 × 10.0R15	27.05″
255/70R15	29.1 × 10.0R15	29.06″
265/70R15	29.6 × 10.4R15	29.61″
265/75R15	30.6 × 10.4R15	30.65″
275/60R15	28.0 × 10.8R15	27.99″
295/50R15	26.6 × 11.6R15	26.61″
295/55R15	27.8 × 11.6R15	27.78″
295/65R15	30.1 × 11.6R15	30.10″
315/60R15	29.9 × 12.4R15	29.88″

16-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
165/80R16	26.4 × 6.5R16	26.39″
175/80R16	27.0 × 6.9R16	27.02″
185/55R16	24.0 × 7.3R16	24.01″
185/60R16	24.7 × 7.3R16	24.74″
185/65R16	25.5 × 7.3R16	25.47″
195/55R16	24.4 × 7.7R16	24.44″
195/60R16	25.2 × 7.7R16	25.21″
195/65R16	26.0 × 7.7R16	25.98″
195/75R16	27.5 × 7.7R16	27.52″
195/80R16	28.3 × 7.7R16	28.28″
205/55R16	24.9 × 8.1R16	24.88″
205/60R16	25.7 × 8.1R16	25.69″
205/65R16	26.5 × 8.1R16	26.49″
205/70R16	27.3 × 8.1R16	27.30″
205/75R16	28.1 × 8.1R16	28.11″
215/55R16	25.3 × 8.5R16	25.31″
215/60R16	26.2 × 8.5R16	26.16″
215/65R16	27.0 × 8.5R16	27.00″
215/70R16	27.9 × 8.5R16	27.85″
215/75R16	28.7 × 8.5R16	28.70″
225/55R16	25.7 × 8.9R16	25.74″
225/60R16	26.6 × 8.9R16	26.63″
225/65R16	27.5 × 8.9R16	27.52″
225/70R16	28.4 × 8.9R16	28.40″
235/55R16	26.2 × 9.3R16	26.18″
235/60R16	27.1 × 9.3R16	27.10″
235/65R16	28.0 × 9.3R16	28.03″
235/70R16	29.0 × 9.3R16	28.95″
245/70R16	29.5 × 9.6R16	29.50″
255/65R16	29.1 × 10.0R16	29.05″
255/70R16	30.1 × 10.0R16	30.06″
265/70R16	30.6 × 10.4R16	30.61″
265/75R16	31.6 × 10.4R16	31.65″
275/70R16	31.2 × 10.8R16	31.16″
285/75R16	32.8 × 11.2R16	32.83″
315/75R16	34.6 × 12.4R16	34.60″

17-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
195/50R17	24.7 × 7.7R17	24.68″
205/45R17	24.3 × 8.1R17	24.26″
205/50R17	25.1 × 8.1R17	25.07″
205/55R17	25.9 × 8.1R17	25.88″
215/40R17	23.8 × 8.5R17	23.77″
215/45R17	24.6 × 8.5R17	24.62″
215/50R17	25.5 × 8.5R17	25.46″
215/55R17	26.3 × 8.5R17	26.31″
215/60R17	27.2 × 8.5R17	27.16″
215/65R17	28.0 × 8.5R17	28.00″
225/45R17	25.0 × 8.9R17	24.97″
225/50R17	25.9 × 8.9R17	25.86″
225/55R17	26.7 × 8.9R17	26.74″
225/60R17	27.6 × 8.9R17	27.63″
225/65R17	28.5 × 8.9R17	28.52″
225/70R17	29.4 × 8.9R17	29.40″
235/45R17	25.3 × 9.3R17	25.33″
235/50R17	26.3 × 9.3R17	26.25″
235/55R17	27.2 × 9.3R17	27.18″
235/60R17	28.1 × 9.3R17	28.10″
235/65R17	29.0 × 9.3R17	29.03″
245/45R17	25.7 × 9.6R17	25.68″
245/50R17	26.6 × 9.6R17	26.65″
245/55R17	27.6 × 9.6R17	27.61″
245/65R17	29.5 × 9.6R17	29.54″
245/70R17	30.5 × 9.6R17	30.50″
255/45R17	26.0 × 10.0R17	26.04″
255/50R17	27.0 × 10.0R17	27.04″
255/55R17	28.0 × 10.0R17	28.04″
255/60R17	29.0 × 10.0R17	29.05″
265/65R17	30.6 × 10.4R17	30.56″
265/70R17	31.6 × 10.4R17	31.61″
275/55R17	28.9 × 10.8R17	28.91″
275/60R17	30.0 × 10.8R17	29.99″
285/60R17	30.5 × 11.2R17	30.46″
285/65R17	31.6 × 11.2R17	31.59″
285/70R17	32.7 × 11.2R17	32.71″

18-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
205/40R18	24.5 × 8.1R18	24.46″
205/45R18	25.3 × 8.1R18	25.26″
205/50R18	26.1 × 8.1R18	26.07″
205/55R18	26.9 × 8.1R18	26.88″
215/40R18	24.8 × 8.5R18	24.77″
215/45R18	25.6 × 8.5R18	25.62″
215/50R18	26.5 × 8.5R18	26.46″
215/55R18	27.3 × 8.5R18	27.31″
225/40R18	25.1 × 8.9R18	25.09″
225/45R18	26.0 × 8.9R18	25.97″
225/50R18	26.9 × 8.9R18	26.86″
225/55R18	27.7 × 8.9R18	27.74″
225/60R18	28.6 × 8.9R18	28.63″
235/40R18	25.4 × 9.3R18	25.40″
235/45R18	26.3 × 9.3R18	26.33″
235/50R18	27.3 × 9.3R18	27.25″
235/55R18	28.2 × 9.3R18	28.18″
235/60R18	29.1 × 9.3R18	29.10″
245/40R18	25.7 × 9.6R18	25.72″
245/45R18	26.7 × 9.6R18	26.68″
245/50R18	27.6 × 9.6R18	27.65″
245/55R18	28.6 × 9.6R18	28.61″
245/60R18	29.6 × 9.6R18	29.57″
255/40R18	26.0 × 10.0R18	26.03″
255/45R18	27.0 × 10.0R18	27.04″
255/50R18	28.0 × 10.0R18	28.04″
255/55R18	29.0 × 10.0R18	29.04″
255/60R18	30.0 × 10.0R18	30.05″
265/35R18	25.3 × 10.4R18	25.30″
265/40R18	26.3 × 10.4R18	26.35″
265/45R18	27.4 × 10.4R18	27.39″
265/50R18	28.4 × 10.4R18	28.43″
265/60R18	30.5 × 10.4R18	30.52″
275/40R18	26.7 × 10.8R18	26.66″
275/45R18	27.7 × 10.8R18	27.74″
275/55R18	29.9 × 10.8R18	29.91″
275/60R18	31.0 × 10.8R18	30.99″
285/40R18	27.0 × 11.2R18	26.98″
285/45R18	28.1 × 11.2R18	28.10″
285/50R18	29.2 × 11.2R18	29.22″
285/60R18	31.5 × 11.2R18	31.46″
295/45R18	28.5 × 11.6R18	28.45″
305/40R18	27.6 × 12.0R18	27.61″
315/30R18	25.4 × 12.4R18	25.44″
325/35R18	27.0 × 12.8R18	26.96″

19-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
215/40R19	25.8 × 8.5R19	25.77″
215/45R19	26.6 × 8.5R19	26.62″
225/40R19	26.1 × 8.9R19	26.09″
225/45R19	27.0 × 8.9R19	26.97″
225/50R19	27.9 × 8.9R19	27.86″
235/35R19	25.5 × 9.3R19	25.48″
235/40R19	26.4 × 9.3R19	26.40″
235/45R19	27.3 × 9.3R19	27.33″
235/50R19	28.3 × 9.3R19	28.25″
235/55R19	29.2 × 9.3R19	29.18″
235/65R19	31.0 × 9.3R19	31.03″
245/40R19	26.7 × 9.6R19	26.72″
245/45R19	27.7 × 9.6R19	27.68″
245/50R19	28.6 × 9.6R19	28.65″
245/55R19	29.6 × 9.6R19	29.61″
255/40R19	27.0 × 10.0R19	27.03″
255/45R19	28.0 × 10.0R19	28.04″
255/50R19	29.0 × 10.0R19	29.04″
255/55R19	30.0 × 10.0R19	30.04″
255/60R19	31.0 × 10.0R19	31.05″
265/40R19	27.3 × 10.4R19	27.35″
265/45R19	28.4 × 10.4R19	28.39″
265/50R19	29.4 × 10.4R19	29.43″
265/55R19	30.5 × 10.4R19	30.48″
275/40R19	27.7 × 10.8R19	27.66″
275/45R19	28.7 × 10.8R19	28.74″
275/50R19	29.8 × 10.8R19	29.83″
285/35R19	26.9 × 11.2R19	26.85″
285/40R19	28.0 × 11.2R19	27.98″
285/45R19	29.1 × 11.2R19	29.10″
295/40R19	28.3 × 11.6R19	28.29″
305/35R19	27.4 × 12.0R19	27.41″
315/30R19	26.4 × 12.4R19	26.44″
315/35R19	27.7 × 12.4R19	27.68″
325/35R19	28.0 × 12.8R19	27.96″

20-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
215/35R20	25.9 × 8.5R20	25.93″
225/35R20	26.2 × 8.9R20	26.20″
225/40R20	27.1 × 8.9R20	27.09″
225/45R20	28.0 × 8.9R20	27.97″
225/50R20	28.9 × 8.9R20	28.86″
235/35R20	26.5 × 9.3R20	26.48″
235/40R20	27.4 × 9.3R20	27.40″
235/45R20	28.3 × 9.3R20	28.33″
235/50R20	29.3 × 9.3R20	29.25″
245/35R20	26.8 × 9.6R20	26.75″
245/40R20	27.7 × 9.6R20	27.72″
245/45R20	28.7 × 9.6R20	28.68″
245/50R20	29.6 × 9.6R20	29.65″
255/35R20	27.0 × 10.0R20	27.03″
255/40R20	28.0 × 10.0R20	28.03″
255/45R20	29.0 × 10.0R20	29.04″
255/50R20	30.0 × 10.0R20	30.04″
255/55R20	31.0 × 10.0R20	31.04″
265/35R20	27.3 × 10.4R20	27.30″
265/40R20	28.3 × 10.4R20	28.35″
265/45R20	29.4 × 10.4R20	29.39″
265/50R20	30.4 × 10.4R20	30.43″
265/60R20	32.5 × 10.4R20	32.52″
275/35R20	27.6 × 10.8R20	27.58″
275/40R20	28.7 × 10.8R20	28.66″
275/45R20	29.7 × 10.8R20	29.74″
275/50R20	30.8 × 10.8R20	30.83″
275/55R20	31.9 × 10.8R20	31.91″
285/35R20	27.9 × 11.2R20	27.85″
285/40R20	29.0 × 11.2R20	28.98″
285/45R20	30.1 × 11.2R20	30.10″
285/50R20	31.2 × 11.2R20	31.22″
295/40R20	29.3 × 11.6R20	29.29″
295/45R20	30.5 × 11.6R20	30.45″
305/35R20	28.4 × 12.0R20	28.41″
305/40R20	29.6 × 12.0R20	29.61″
315/30R20	27.4 × 12.4R20	27.44″
315/35R20	28.7 × 12.4R20	28.68″
325/30R20	27.7 × 12.8R20	27.68″
325/35R20	29.0 × 12.8R20	28.96″

21-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
245/35R21	27.8 × 9.6R21	27.75″
245/40R21	28.7 × 9.6R21	28.72″
255/35R21	28.0 × 10.0R21	28.03″
255/40R21	29.0 × 10.0R21	29.03″
255/45R21	30.0 × 10.0R21	30.04″
265/35R21	28.3 × 10.4R21	28.30″
265/40R21	29.3 × 10.4R21	29.35″
265/45R21	30.4 × 10.4R21	30.39″
275/35R21	28.6 × 10.8R21	28.58″
275/40R21	29.7 × 10.8R21	29.66″
275/45R21	30.7 × 10.8R21	30.74″
285/30R21	27.7 × 11.2R21	27.73″
285/35R21	28.9 × 11.2R21	28.85″
285/40R21	30.0 × 11.2R21	29.98″
285/45R21	31.1 × 11.2R21	31.10″
295/30R21	28.0 × 11.6R21	27.97″
295/35R21	29.1 × 11.6R21	29.13″
295/40R21	30.3 × 11.6R21	30.29″
305/30R21	28.2 × 12.0R21	28.20″
305/35R21	29.4 × 12.0R21	29.41″
315/30R21	28.4 × 12.4R21	28.44″
315/35R21	29.7 × 12.4R21	29.68″
325/30R21	28.7 × 12.8R21	28.68″
325/35R21	30.0 × 12.8R21	29.96″

22-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
255/35R22	29.0 × 10.0R22	29.03″
255/40R22	30.0 × 10.0R22	30.03″
265/35R22	29.3 × 10.4R22	29.30″
265/40R22	30.3 × 10.4R22	30.35″
265/45R22	31.4 × 10.4R22	31.39″
265/50R22	32.4 × 10.4R22	32.43″
265/55R22	33.5 × 10.4R22	33.48″
275/40R22	30.7 × 10.8R22	30.66″
275/45R22	31.7 × 10.8R22	31.74″
275/50R22	32.8 × 10.8R22	32.83″
275/55R22	33.9 × 10.8R22	33.91″
275/60R22	35.0 × 10.8R22	34.99″
285/35R22	29.9 × 11.2R22	29.85″
285/40R22	31.0 × 11.2R22	30.98″
285/45R22	32.1 × 11.2R22	32.10″
285/50R22	33.2 × 11.2R22	33.22″
285/55R22	34.3 × 11.2R22	34.34″
295/30R22	29.0 × 11.6R22	28.97″
295/35R22	30.1 × 11.6R22	30.13″
295/40R22	31.3 × 11.6R22	31.29″
295/45R22	32.5 × 11.6R22	32.45″
305/35R22	30.4 × 12.0R22	30.41″
305/40R22	31.6 × 12.0R22	31.61″
305/45R22	32.8 × 12.0R22	32.81″
315/30R22	29.4 × 12.4R22	29.44″
315/35R22	30.7 × 12.4R22	30.68″
315/40R22	31.9 × 12.4R22	31.92″
325/35R22	31.0 × 12.8R22	30.96″
325/40R22	32.2 × 12.8R22	32.24″
325/50R22	34.8 × 12.8R22	34.80″
325/60R22	37.4 × 12.8R22	37.35″

23-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
265/25R23	28.2 × 10.4R23	28.22″
275/30R23	29.5 × 10.8R23	29.50″
275/35R23	30.6 × 10.8R23	30.58″
285/30R23	29.7 × 11.2R23	29.73″
285/35R23	30.9 × 11.2R23	30.85″
295/30R23	30.0 × 11.6R23	29.97″
295/35R23	31.1 × 11.6R23	31.13″
305/30R23	30.2 × 12.0R23	30.20″
305/35R23	31.4 × 12.0R23	31.41″
315/30R23	30.4 × 12.4R23	30.44″
325/30R23	30.7 × 12.8R23	30.68″
325/35R23	32.0 × 12.8R23	31.96″
335/30R23	30.9 × 13.2R23	30.91″
345/30R23	31.1 × 13.6R23	31.15″
355/30R23	31.4 × 14.0R23	31.39″
375/30R23	31.9 × 14.8R23	31.86″

24-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
255/30R24	30.0 × 10.0R24	30.02″
255/35R24	31.0 × 10.0R24	31.03″
265/30R24	30.3 × 10.4R24	30.26″
265/35R24	31.3 × 10.4R24	31.30″
275/25R24	29.4 × 10.8R24	29.41″
275/30R24	30.5 × 10.8R24	30.50″
275/35R24	31.6 × 10.8R24	31.58″
285/25R24	29.6 × 11.2R24	29.61″
285/30R24	30.7 × 11.2R24	30.73″
285/35R24	31.9 × 11.2R24	31.85″
295/25R24	29.8 × 11.6R24	29.81″
295/30R24	31.0 × 11.6R24	30.97″
295/35R24	32.1 × 11.6R24	32.13″
305/25R24	30.0 × 12.0R24	30.00″
305/30R24	31.2 × 12.0R24	31.20″
305/35R24	32.4 × 12.0R24	32.41″
315/25R24	30.2 × 12.4R24	30.20″
315/30R24	31.4 × 12.4R24	31.44″
325/30R24	31.7 × 12.8R24	31.68″
335/30R24	31.9 × 13.2R24	31.91″
345/30R24	32.1 × 13.6R24	32.15″
355/30R24	32.4 × 14.0R24	32.39″
375/30R24	32.9 × 14.8R24	32.86″

25-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
315/40R25	34.9 × 12.4R25	34.92″

26-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
255/30R26	32.0 × 10.0R26	32.02″
275/25R26	31.4 × 10.8R26	31.41″
295/25R26	31.8 × 11.6R26	31.81″
295/30R26	33.0 × 11.6R26	32.97″
305/25R26	32.0 × 12.0R26	32.00″
305/30R26	33.2 × 12.0R26	33.20″
305/35R26	34.4 × 12.0R26	34.41″
315/40R26	35.9 × 12.4R26	35.92″
335/35R26	35.2 × 13.2R26	35.23″
355/40R26	37.2 × 14.0R26	37.18″

28-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
275/25R28	33.4 × 10.8R28	33.41″
295/25R28	33.8 × 11.6R28	33.81″
325/35R28	37.0 × 12.8R28	36.96″

30-Inch Tire Size Conversion Chart By Wheel Size

Metric Tire Size	Inch Equivalent	Overall Diameter
315/20R30	35.0 × 12.4R30	34.96″
275/25R30	35.4 × 10.8R30	35.41″
255/30R30	36.0 × 10.0R30	36.02″
315/30R30	37.4 × 12.4R30	37.44″
315/35R30	38.7 × 12.4R30	38.68″

Tire Conversion Charts by Tire Diameter

19-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
105/80R13	19.6 × 4.1R13	13″
145/60R13	19.9 × 5.7R13	13″
105/70R14	19.8 × 4.1R14	14″

20-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
125/80R13	20.9 × 4.9R13	13″
135/70R13	20.4 × 5.3R13	13″
145/70R13	21.0 × 5.7R13	13″
155/65R13	20.9 × 6.1R13	13″
165/55R13	20.1 × 6.5R13	13″
225/45R13	21.0 × 8.9R13	13″
115/70R14	20.3 × 4.5R14	14″
125/70R14	20.9 × 4.9R14	14″
155/55R14	20.7 × 6.1R14	14″

21-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
155/70R13	21.5 × 6.1R13	13″
165/65R13	21.4 × 6.5R13	13″
185/60R13	21.7 × 7.3R13	13″
215/50R13	21.5 × 8.5R13	13″
225/45R13	21.0 × 8.9R13	13″
225/50R13	21.9 × 8.9R13	13″
255/40R13	21.0 × 10.0R13	13″
165/55R14	21.1 × 6.5R14	14″
115/70R15	21.3 × 4.5R15	15″
125/70R15	21.9 × 4.9R15	15″
165/50R15	21.5 × 6.5R15	15″
175/50R15	21.9 × 6.9R15	15″
195/45R15	21.9 × 7.7R15	15″

22-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
155/80R13	22.8 × 6.1R13	13″
175/65R13	22.0 × 6.9R13	13″
175/70R13	22.6 × 6.9R13	13″
185/65R13	22.5 × 7.3R13	13″
205/60R13	22.7 × 8.1R13	13″
—	22 × 8R13	13″
135/80R14	22.5 × 5.3R14	14″
165/65R14	22.4 × 6.5R14	14″
175/60R14	22.3 × 6.9R14	14″
185/55R14	22.0 × 7.3R14	14″
185/60R14	22.7 × 7.3R14	14″
195/55R14	22.4 × 7.7R14	14″
205/50R14	22.1 × 8.1R14	14″
205/55R14	22.9 × 8.1R14	14″
225/50R14	22.9 × 8.9R14	14″
125/80R15	22.9 × 4.9R15	15″
145/65R15	22.4 × 5.7R15	15″
155/60R15	22.3 × 6.1R15	15″
165/60R15	22.8 × 6.5R15	15″
175/55R15	22.6 × 6.9R15	15″
195/50R15	22.7 × 7.7R15	15″
—	22 × 8R15	15″
—	22.5 × 4.5R15	15″
245/40R15	22.7 × 9.6R15	15″
275/35R15	22.6 × 10.8R15	15″
125/70R16	22.9 × 4.9R16	16″
175/50R16	22.9 × 6.9R16	16″
195/40R16	22.1 × 7.7R16	16″
195/45R16	22.9 × 7.7R16	16″
205/40R16	22.5 × 8.1R16	16″
215/35R16	21.9 × 8.5R16	16″
215/40R16	22.8 × 8.5R16	16″
—	22 × 2.5R17	17″

23-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
165/80R13	23.4 × 6.5R13	13″
185/70R13	23.2 × 7.3R13	13″
195/70R13	23.7 × 7.7R13	13″
175/65R14	23.0 × 6.9R14	14″
175/70R14	23.6 × 6.9R14	14″
185/65R14	23.5 × 7.3R14	14″
195/60R14	23.2 × 7.7R14	14″
205/60R14	23.7 × 8.1R14	14″
135/80R15	23.5 × 5.3R15	15″
165/65R15	23.4 × 6.5R15	15″
175/60R15	23.3 × 6.9R15	15″
185/55R15	23.0 × 7.3R15	15″
185/60R15	23.7 × 7.3R15	15″
195/55R15	23.4 × 7.7R15	15″
205/50R15	23.1 × 8.1R15	15″
205/55R15	23.9 × 8.1R15	15″
215/50R15	23.5 × 8.5R15	15″
225/45R15	23.0 × 8.9R15	15″
225/50R15	23.9 × 8.9R15	15″
295/35R15	23.1 × 11.6R15	15″
125/80R16	23.9 × 4.9R16	16″
135/70R16	23.4 × 5.3R16	16″
175/55R16	23.6 × 6.9R16	16″
185/50R16	23.3 × 7.3R16	16″
195/50R16	23.7 × 7.7R16	16″
205/45R16	23.3 × 8.1R16	16″
215/45R16	23.6 × 8.5R16	16″
125/70R17	23.9 × 4.9R17	17″
195/40R17	23.1 × 7.7R17	17″
195/45R17	23.9 × 7.7R17	17″
205/40R17	23.5 × 8.1R17	17″
215/35R17	22.9 × 8.5R17	17″
215/40R17	23.8 × 8.5R17	17″
225/35R17	23.2 × 8.9R17	17″
245/35R17	23.8 × 9.6R17	17″
205/35R18	23.6 × 8.1R18	18″
215/35R18	23.9 × 8.5R18	18″
235/30R18	23.6 × 9.3R18	18″

24-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
175/80R13	24.0 × 6.9R13	13″
185/80R13	24.7 × 7.3R13	13″
—	24.5 × 8R13	13″
—	24.5 × 9R13	13″
165/80R14	24.4 × 6.5R14	14″
185/70R14	24.2 × 7.3R14	14″
185/75R14	24.9 × 7.3R14	14″
195/65R14	24.0 × 7.7R14	14″
195/70R14	24.7 × 7.7R14	14″
215/60R14	24.2 × 8.5R14	14″
225/60R14	24.6 × 8.9R14	14″
135/90R15	24.6 × 5.3R15	15″
155/80R15	24.8 × 6.1R15	15″
175/65R15	24.0 × 6.9R15	15″
175/70R15	24.6 × 6.9R15	15″
185/65R15	24.5 × 7.3R15	15″
195/60R15	24.2 × 7.7R15	15″
205/60R15	24.7 × 8.1R15	15″
225/55R15	24.7 × 8.9R15	15″
235/50R15	24.3 × 9.3R15	15″
—	24 × 4.5R15	15″
—	24 × 5R15	15″
—	24.5 × 8R15	15″
245/50R15	24.6 × 9.6R15	15″
345/35R15	24.5 × 13.6R15	15″
125/85R16	24.4 × 4.9R16	16″
125/90R16	24.9 × 4.9R16	16″
135/80R16	24.5 × 5.3R16	16″
175/60R16	24.3 × 6.9R16	16″
185/55R16	24.0 × 7.3R16	16″
185/60R16	24.7 × 7.3R16	16″
195/55R16	24.4 × 7.7R16	16″
205/50R16	24.1 × 8.1R16	16″
205/55R16	24.9 × 8.1R16	16″
215/50R16	24.5 × 8.5R16	16″
225/45R16	24.0 × 8.9R16	16″
225/50R16	24.9 × 8.9R16	16″
245/45R16	24.7 × 9.6R16	16″
125/80R17	24.9 × 4.9R17	17″
135/70R17	24.4 × 5.3R17	17″
205/45R17	24.3 × 8.1R17	17″
215/45R17	24.6 × 8.5R17	17″
225/40R17	24.1 × 8.9R17	17″
235/40R17	24.4 × 9.3R17	17″
245/40R17	24.7 × 9.6R17	17″
275/35R17	24.6 × 10.8R17	17″
125/70R18	24.9 × 4.9R18	18″
205/40R18	24.5 × 8.1R18	18″
215/40R18	24.8 × 8.5R18	18″
225/35R18	24.2 × 8.9R18	18″
235/35R18	24.5 × 9.3R18	18″
245/35R18	24.8 × 9.6R18	18″
285/30R18	24.7 × 11.2R18	18″
215/35R19	24.9 × 8.5R19	19″
235/30R19	24.6 × 9.3R19	19″
245/30R19	24.8 × 9.6R19	19″
295/25R19	24.8 × 11.6R19	19″

25-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
185R14	25.7 × 7.3R14	14″
195/75R14	25.5 × 7.7R14	14″
205/70R14	25.3 × 8.1R14	14″
215/70R14	25.9 × 8.5R14	14″
235/60R14	25.1 × 9.3R14	14″
245/60R14	25.6 × 9.6R14	14″
165/80R15	25.4 × 6.5R15	15″
185/70R15	25.2 × 7.3R15	15″
195/65R15	25.0 × 7.7R15	15″
195/70R15	25.7 × 7.7R15	15″
205/65R15	25.5 × 8.1R15	15″
215/60R15	25.2 × 8.5R15	15″
225/60R15	25.6 × 8.9R15	15″
25X4.5R15	25 × 4.5R15	15″
265/50R15	25.4 × 10.4R15	15″
275/50R15	25.8 × 10.8R15	15″
135/90R16	25.6 × 5.3R16	16″
145/80R16	25.1 × 5.7R16	16″
195/60R16	25.2 × 7.7R16	16″
205/60R16	25.7 × 8.1R16	16″
215/55R16	25.3 × 8.5R16	16″
225/55R16	25.7 × 8.9R16	16″
245/50R16	25.6 × 9.6R16	16″
265/45R16	25.4 × 10.4R16	16″
275/45R16	25.7 × 10.8R16	16″
315/40R16	25.9 × 12.4R16	16″
115/95R17	25.6 × 4.5R17	17″
135/80R17	25.5 × 5.3R17	17″
145/70R17	25.0 × 5.7R17	17″
155/70R17	25.5 × 6.1R17	17″
185/60R17	25.7 × 7.3R17	17″
205/50R17	25.1 × 8.1R17	17″
205/55R17	25.9 × 8.1R17	17″
215/50R17	25.5 × 8.5R17	17″
225/45R17	25.0 × 8.9R17	17″
225/50R17	25.9 × 8.9R17	17″
235/45R17	25.3 × 9.3R17	17″
245/45R17	25.7 × 9.6R17	17″
255/40R17	25.0 × 10.0R17	17″
265/40R17	25.3 × 10.4R17	17″
275/40R17	25.7 × 10.8R17	17″
295/35R17	25.1 × 11.6R17	17″
315/35R17	25.7 × 12.4R17	17″
125/80R18	25.9 × 4.9R18	18″
135/70R18	25.4 × 5.3R18	18″
155/60R18	25.3 × 6.1R18	18″
205/45R18	25.3 × 8.1R18	18″
215/45R18	25.6 × 8.5R18	18″
225/40R18	25.1 × 8.9R18	18″
235/40R18	25.4 × 9.3R18	18″
245/40R18	25.7 × 9.6R18	18″
255/35R18	25.0 × 10.0R18	18″
265/35R18	25.3 × 10.4R18	18″
275/35R18	25.6 × 10.8R18	18″
285/35R18	25.9 × 11.2R18	18″
295/30R18	25.0 × 11.6R18	18″
305/30R18	25.2 × 12.0R18	18″
315/30R18	25.4 × 12.4R18	18″
335/30R18	25.9 × 13.2R18	18″
115/70R19	25.3 × 4.5R19	19″
125/70R19	25.9 × 4.9R19	19″
225/35R19	25.2 × 8.9R19	19″
235/35R19	25.5 × 9.3R19	19″
245/35R19	25.8 × 9.6R19	19″
255/30R19	25.0 × 10.0R19	19″
265/30R19	25.3 × 10.4R19	19″
275/30R19	25.5 × 10.8R19	19″
285/30R19	25.7 × 11.2R19	19″
315/25R19	25.2 × 12.4R19	19″
215/30R20	25.1 × 8.5R20	20″
225/30R20	25.3 × 8.9R20	20″
235/30R20	25.6 × 9.3R20	20″
245/30R20	25.8 × 9.6R20	20″
275/25R20	25.4 × 10.8R20	20″
285/25R20	25.6 × 11.2R20	20″
295/25R20	25.8 × 11.6R20	20″
275/20R21	25.3 × 10.8R21	21″

26-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
195R14	26.2 × 7.8R14	14″
205/75R14	26.1 × 8.1R14	14″
215/75R14	26.7 × 8.5R14	14″
225/70R14	26.4 × 8.9R14	14″
—	26 × 8.5R14	14″
205/70R15	26.3 × 8.1R15	15″
215/65R15	26.0 × 8.5R15	15″
215/70R15	26.9 × 8.5R15	15″
235/60R15	26.1 × 9.3R15	15″
245/60R15	26.6 × 9.6R15	15″
—	26 × 4R15	15″
—	26 × 6R15	15″
—	26 × 7.5R15	15″
—	26 × 8R15	15″
—	26 × 8.5R15	15″
—	26 × 10R15	15″
—	26 × 10.5R15	15″
—	26 × 11.5R15	15″
—	26 × 12R15	15″
295/50R15	26.6 × 11.6R15	15″
195/65R16	26.0 × 7.7R16	16″
205/65R16	26.5 × 8.1R16	16″
215/60R16	26.2 × 8.5R16	16″
225/60R16	26.6 × 8.9R16	16″
235/55R16	26.2 × 9.3R16	16″
255/50R16	26.0 × 10.0R16	16″
—	26 × 11.5R16	16″
135/90R17	26.6 × 5.3R17	17″
145/80R17	26.1 × 5.7R17	17″
155/80R17	26.8 × 6.1R17	17″
165/70R17	26.1 × 6.5R17	17″
175/65R17	26.0 × 6.9R17	17″
195/60R17	26.2 × 7.7R17	17″
205/60R17	26.7 × 8.1R17	17″
215/55R17	26.3 × 8.5R17	17″
225/55R17	26.7 × 8.9R17	17″
235/50R17	26.3 × 9.3R17	17″
245/50R17	26.6 × 9.6R17	17″
255/45R17	26.0 × 10.0R17	17″
—	26 × 4R17	17″
—	26 × 6R17	17″
285/40R17	26.0 × 11.2R17	17″
295/40R17	26.3 × 11.6R17	17″
335/35R17	26.2 × 13.2R17	17″
135/80R18	26.5 × 5.3R18	18″
145/70R18	26.0 × 5.7R18	18″
155/70R18	26.5 × 6.1R18	18″
215/50R18	26.5 × 8.5R18	18″
225/45R18	26.0 × 8.9R18	18″
225/50R18	26.9 × 8.9R18	18″
235/45R18	26.3 × 9.3R18	18″
245/45R18	26.7 × 9.6R18	18″
255/40R18	26.0 × 10.0R18	18″
—	26 × 6R18	18″
—	26 × 8R18	18″
—	26 × 12R18	18″
265/40R18	26.3 × 10.4R18	18″
275/40R18	26.7 × 10.8R18	18″
295/35R18	26.1 × 11.6R18	18″
305/35R18	26.4 × 12.0R18	18″
315/35R18	26.7 × 12.4R18	18″
345/30R18	26.1 × 13.6R18	18″

27-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
205R14	27.0 × 8.2R14	14″
—	27 × 8.5R14	14″
—	27 × 9R14	14″
—	27 × 9.5R14	14″
—	27 × 11R14	14″
205/75R15	27.1 × 8.1R15	15″
215/75R15	27.7 × 8.5R15	15″
225/70R15	27.4 × 8.9R15	15″
235/65R15	27.0 × 9.3R15	15″
255/60R15	27.0 × 10.0R15	15″
—	27 × 9.5R15	15″
—	27 × 10.5R15	15″
—	27.5 × 4.5R15	15″
295/55R15	27.8 × 11.6R15	15″
325/50R15	27.8 × 12.8R15	15″
155/90R16	27.0 × 6.1R16	16″
195/75R16	27.5 × 7.7R16	16″
205/70R16	27.3 × 8.1R16	16″
215/65R16	27.0 × 8.5R16	16″
215/70R16	27.9 × 8.5R16	16″
225/65R16	27.5 × 8.9R16	16″
235/60R16	27.1 × 9.3R16	16″
295/50R16	27.6 × 11.6R16	16″
355/40R16	27.2 × 14.0R16	16″
145/90R17	27.3 × 5.7R17	17″
165/80R17	27.4 × 6.5R17	17″
205/65R17	27.5 × 8.1R17	17″
215/60R17	27.2 × 8.5R17	17″
225/60R17	27.6 × 8.9R17	17″
235/55R17	27.2 × 9.3R17	17″
245/55R17	27.6 × 9.6R17	17″
255/50R17	27.0 × 10.0R17	17″
—	27.5 × 4R17	17″
275/50R17	27.8 × 10.8R17	17″
305/45R17	27.8 × 12.0R17	17″
345/40R17	27.9 × 13.6R17	17″
145/80R18	27.1 × 5.7R18	18″
145/85R18	27.7 × 5.7R18	18″
165/70R18	27.1 × 6.5R18	18″
195/60R18	27.2 × 7.7R18	18″
205/60R18	27.7 × 8.1R18	18″
215/55R18	27.3 × 8.5R18	18″
225/55R18	27.7 × 8.9R18	18″
235/50R18	27.3 × 9.3R18	18″
245/50R18	27.6 × 9.6R18	18″
255/45R18	27.0 × 10.0R18	18″
265/45R18	27.4 × 10.4R18	18″
275/45R18	27.7 × 10.8R18	18″
285/40R18	27.0 × 11.2R18	18″
295/40R18	27.3 × 11.6R18	18″
305/40R18	27.6 × 12.0R18	18″
315/40R18	27.9 × 12.4R18	18″
325/35R18	27.0 × 12.8R18	18″
345/35R18	27.5 × 13.6R18	18″
155/70R19	27.5 × 6.1R19	19″
175/60R19	27.3 × 6.9R19	19″
215/50R19	27.5 × 8.5R19	19″
225/45R19	27.0 × 8.9R19	19″
225/50R19	27.9 × 8.9R19	19″
235/45R19	27.3 × 9.3R19	19″
245/45R19	27.7 × 9.6R19	19″
255/40R19	27.0 × 10.0R19	19″
265/40R19	27.3 × 10.4R19	19″
275/40R19	27.7 × 10.8R19	19″
295/35R19	27.1 × 11.6R19	19″
305/35R19	27.4 × 12.0R19	19″
315/35R19	27.7 × 12.4R19	19″
345/30R19	27.1 × 13.6R19	19″
355/30R19	27.4 × 14.0R19	19″
145/65R20	27.4 × 5.7R20	20″
155/60R20	27.3 × 6.1R20	20″
155/65R20	27.9 × 6.1R20	20″
165/60R20	27.8 × 6.5R20	20″
175/55R20	27.6 × 6.9R20	20″
195/50R20	27.7 × 7.7R20	20″
215/45R20	27.6 × 8.5R20	20″
225/40R20	27.1 × 8.9R20	20″
235/40R20	27.4 × 9.3R20	20″
245/40R20	27.7 × 9.6R20	20″
255/35R20	27.0 × 10.0R20	20″
265/35R20	27.3 × 10.4R20	20″
275/35R20	27.6 × 10.8R20	20″
285/35R20	27.9 × 11.2R20	20″
295/30R20	27.0 × 11.6R20	20″
305/30R20	27.2 × 12.0R20	20″
315/30R20	27.4 × 12.4R20	20″
325/30R20	27.7 × 12.8R20	20″
335/30R20	27.9 × 13.2R20	20″
245/35R21	27.8 × 9.6R21	21″
255/30R21	27.0 × 10.0R21	21″
265/30R21	27.3 × 10.4R21	21″
275/30R21	27.5 × 10.8R21	21″
285/30R21	27.7 × 11.2R21	21″
305/25R21	27.0 × 12.0R21	21″
325/25R21	27.4 × 12.8R21	21″
345/25R21	27.8 × 13.6R21	21″
235/30R22	27.6 × 9.3R22	22″
245/30R22	27.8 × 9.6R22	22″
275/25R22	27.4 × 10.8R22	22″
285/25R22	27.6 × 11.2R22	22″
295/25R22	27.8 × 11.6R22	22″

28-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	28 × 10R14	14″
—	28 × 11R14	14″
225/75R15	28.3 × 8.9R15	15″
235/70R15	28.0 × 9.3R15	15″
235/75R15	28.9 × 9.3R15	15″
245/70R15	28.5 × 9.6R15	15″
255/65R15	28.1 × 10.0R15	15″
275/60R15	28.0 × 10.8R15	15″
—	28 × 10R15	15″
—	28 × 10.5R15	15″
—	28 × 11.5R15	15″
—	28 × 12R15	15″
—	28 × 12.5R15	15″
—	28 × 13.5R15	15″
—	28 × 4.5R15	15″
—	28 × 6R15	15″
—	28 × 7.5R15	15″
—	28 × 9R15	15″
195/80R16	28.3 × 7.7R16	16″
205/75R16	28.1 × 8.1R16	16″
205/80R16	28.9 × 8.1R16	16″
215/75R16	28.7 × 8.5R16	16″
225/70R16	28.4 × 8.9R16	16″
235/65R16	28.0 × 9.3R16	16″
255/60R16	28.0 × 10.0R16	16″
—	28 × 11.5R16	16″
285/55R16	28.3 × 11.2R16	16″
155/90R17	28.0 × 6.1R17	17″
165/90R17	28.7 × 6.5R17	17″
215/65R17	28.0 × 8.5R17	17″
215/70R17	28.9 × 8.5R17	17″
225/65R17	28.5 × 8.9R17	17″
235/60R17	28.1 × 9.3R17	17″
245/60R17	28.6 × 9.6R17	17″
255/55R17	28.0 × 10.0R17	17″
275/55R17	28.9 × 10.8R17	17″
—	28 × 6R17	17″
155/85R18	28.4 × 6.1R18	18″
215/60R18	28.2 × 8.5R18	18″
225/60R18	28.6 × 8.9R18	18″
235/55R18	28.2 × 9.3R18	18″
245/55R18	28.6 × 9.6R18	18″
255/50R18	28.0 × 10.0R18	18″
265/50R18	28.4 × 10.4R18	18″
—	28 × 10R18	18″
—	28 × 12R18	18″
285/45R18	28.1 × 11.2R18	18″
295/45R18	28.5 × 11.6R18	18″
305/45R18	28.8 × 12.0R18	18″
145/80R19	28.1 × 5.7R19	19″
155/80R19	28.8 × 6.1R19	19″
225/55R19	28.7 × 8.9R19	19″
235/50R19	28.3 × 9.3R19	19″
245/50R19	28.6 × 9.6R19	19″
255/45R19	28.0 × 10.0R19	19″
265/45R19	28.4 × 10.4R19	19″
275/45R19	28.7 × 10.8R19	19″
285/40R19	28.0 × 11.2R19	19″
295/40R19	28.3 × 11.6R19	19″
315/40R19	28.9 × 12.4R19	19″
345/35R19	28.5 × 13.6R19	19″
195/55R20	28.4 × 7.7R20	20″
225/45R20	28.0 × 8.9R20	20″
235/45R20	28.3 × 9.3R20	20″
245/45R20	28.7 × 9.6R20	20″
255/40R20	28.0 × 10.0R20	20″
265/40R20	28.3 × 10.4R20	20″
275/40R20	28.7 × 10.8R20	20″
295/35R20	28.1 × 11.6R20	20″
305/35R20	28.4 × 12.0R20	20″
315/35R20	28.7 × 12.4R20	20″
345/30R20	28.1 × 13.6R20	20″
245/40R21	28.7 × 9.6R21	21″
255/35R21	28.0 × 10.0R21	21″
265/35R21	28.3 × 10.4R21	21″
275/35R21	28.6 × 10.8R21	21″
285/35R21	28.9 × 11.2R21	21″
295/30R21	28.0 × 11.6R21	21″
305/30R21	28.2 × 12.0R21	21″
315/30R21	28.4 × 12.4R21	21″
325/30R21	28.7 × 12.8R21	21″
335/30R21	28.9 × 13.2R21	21″
355/25R21	28.0 × 14.0R21	21″
255/30R22	28.0 × 10.0R22	22″
265/30R22	28.3 × 10.4R22	22″
275/30R22	28.5 × 10.8R22	22″
285/30R22	28.7 × 11.2R22	22″
305/25R22	28.0 × 12.0R22	22″
315/25R22	28.2 × 12.4R22	22″
335/25R22	28.6 × 13.2R22	22″
265/25R23	28.2 × 10.4R23	23″

29-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	29 × 11R14	14″
—	29 × 9R14	14″
215/85R15	29.4 × 8.5R15	15″
255/70R15	29.1 × 10.0R15	15″
265/70R15	29.6 × 10.4R15	15″
—	29 × 10.5R15	15″
—	29 × 11.5R15	15″
—	29 × 12.5R15	15″
—	29 × 15R15	15″
—	29 × 15.5R15	15″
—	29 × 18R15	15″
—	29 × 18.5R15	15″
—	29 × 4.5R15	15″
—	29 × 8.5R15	15″
—	29.5 × 10.5R15	15″
—	29.5 × 11.5R15	15″
—	29.5 × 13.5R15	15″
—	29.5 × 9R15	15″
315/60R15	29.9 × 12.4R15	15″
—	29.5 × 7.7R15	15″
225/75R16	29.3 × 8.9R16	16″
235/70R16	29.0 × 9.3R16	16″
235/75R16	29.9 × 9.3R16	16″
245/70R16	29.5 × 9.6R16	16″
255/65R16	29.1 × 10.0R16	16″
275/60R16	29.0 × 10.8R16	16″
285/60R16	29.5 × 11.2R16	16″
8.75R16.5	29.5 × 8.8R16.5	16.5″
175/90R17	29.4 × 6.9R17	17″
225/70R17	29.4 × 8.9R17	17″
235/65R17	29.0 × 9.3R17	17″
245/65R17	29.5 × 9.6R17	17″
255/60R17	29.0 × 10.0R17	17″
265/60R17	29.5 × 10.4R17	17″
155/90R18	29.0 × 6.1R18	18″
165/90R18	29.7 × 6.5R18	18″
225/65R18	29.5 × 8.9R18	18″
235/60R18	29.1 × 9.3R18	18″
245/60R18	29.6 × 9.6R18	18″
255/55R18	29.0 × 10.0R18	18″
265/55R18	29.5 × 10.4R18	18″
275/55R18	29.9 × 10.8R18	18″
285/50R18	29.2 × 11.2R18	18″
325/45R18	29.5 × 12.8R18	18″
235/55R19	29.2 × 9.3R19	19″
245/55R19	29.6 × 9.6R19	19″
255/50R19	29.0 × 10.0R19	19″
265/50R19	29.4 × 10.4R19	19″
275/50R19	29.8 × 10.8R19	19″
285/45R19	29.1 × 11.2R19	19″
295/45R19	29.5 × 11.6R19	19″
175/70R20	29.6 × 6.9R20	20″
235/50R20	29.3 × 9.3R20	20″
245/50R20	29.6 × 9.6R20	20″
255/45R20	29.0 × 10.0R20	20″
265/45R20	29.4 × 10.4R20	20″
275/45R20	29.7 × 10.8R20	20″
285/40R20	29.0 × 11.2R20	20″
—	29 × 15R20	20″
—	29 × 18R20	20″
295/40R20	29.3 × 11.6R20	20″
305/40R20	29.6 × 12.0R20	20″
325/35R20	29.0 × 12.8R20	20″
225/45R21	29.0 × 8.9R21	21″
235/45R21	29.3 × 9.3R21	21″
245/45R21	29.7 × 9.6R21	21″
255/40R21	29.0 × 10.0R21	21″
265/40R21	29.3 × 10.4R21	21″
275/40R21	29.7 × 10.8R21	21″
295/35R21	29.1 × 11.6R21	21″
305/35R21	29.4 × 12.0R21	21″
315/35R21	29.7 × 12.4R21	21″
345/30R21	29.1 × 13.6R21	21″
255/35R22	29.0 × 10.0R22	22″
265/35R22	29.3 × 10.4R22	22″
275/35R22	29.6 × 10.8R22	22″
285/35R22	29.9 × 11.2R22	22″
295/30R22	29.0 × 11.6R22	22″
305/30R22	29.2 × 12.0R22	22″
315/30R22	29.4 × 12.4R22	22″
325/30R22	29.7 × 12.8R22	22″
355/25R22	29.0 × 14.0R22	22″
315/25R23	29.2 × 12.4R23	23″
275/25R24	29.4 × 10.8R24	24″

30-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	30 × 10R14	14″
255/75R15	30.1 × 10.0R15	15″
265/75R15	30.6 × 10.4R15	15″
295/65R15	30.1 × 11.6R15	15″
—	30 × 10R15	15″
—	30 × 10.5R15	15″
—	30 × 11.5R15	15″
—	30 × 12R15	15″
—	30 × 12.5R15	15″
—	30 × 13.5R15	15″
—	30 × 7R15	15″
—	30 × 9R15	15″
—	30 × 9.5R15	15″
215/85R16	30.4 × 8.5R16	16″
235/80R16	30.8 × 9.3R16	16″
245/75R16	30.5 × 9.6R16	16″
255/70R16	30.1 × 10.0R16	16″
265/70R16	30.6 × 10.4R16	16″
285/65R16	30.6 × 11.2R16	16″
—	30 × 11.5R16	16″
—	30.6 × 9.5R16.5	16.5″
225/75R17	30.3 × 8.9R17	17″
235/70R17	30.0 × 9.3R17	17″
235/75R17	30.9 × 9.3R17	17″
245/70R17	30.5 × 9.6R17	17″
255/65R17	30.1 × 10.0R17	17″
265/65R17	30.6 × 10.4R17	17″
275/60R17	30.0 × 10.8R17	17″
285/60R17	30.5 × 11.2R17	17″
315/55R17	30.6 × 12.4R17	17″
215/75R17.5	30.2 × 8.5R17.5	17.5″
175/90R18	30.4 × 6.9R18	18″
235/65R18	30.0 × 9.3R18	18″
245/65R18	30.5 × 9.6R18	18″
255/60R18	30.0 × 10.0R18	18″
265/60R18	30.5 × 10.4R18	18″
285/55R18	30.3 × 11.2R18	18″
165/90R19	30.7 × 6.5R19	19″
175/80R19	30.0 × 6.9R19	19″
235/60R19	30.1 × 9.3R19	19″
255/55R19	30.0 × 10.0R19	19″
265/55R19	30.5 × 10.4R19	19″
275/55R19	30.9 × 10.8R19	19″
235/55R20	30.2 × 9.3R20	20″
255/50R20	30.0 × 10.0R20	20″
265/50R20	30.4 × 10.4R20	20″
275/50R20	30.8 × 10.8R20	20″
285/45R20	30.1 × 11.2R20	20″
295/45R20	30.5 × 11.6R20	20″
305/45R20	30.8 × 12.0R20	20″
235/50R21	30.3 × 9.3R21	21″
255/45R21	30.0 × 10.0R21	21″
265/45R21	30.4 × 10.4R21	21″
275/45R21	30.7 × 10.8R21	21″
285/40R21	30.0 × 11.2R21	21″
295/40R21	30.3 × 11.6R21	21″
305/40R21	30.6 × 12.0R21	21″
315/40R21	30.9 × 12.4R21	21″
255/40R22	30.0 × 10.0R22	22″
265/40R22	30.3 × 10.4R22	22″
275/40R22	30.7 × 10.8R22	22″
295/35R22	30.1 × 11.6R22	22″
305/35R22	30.4 × 12.0R22	22″
315/35R22	30.7 × 12.4R22	22″
275/35R23	30.6 × 10.8R23	23″
285/35R23	30.9 × 11.2R23	23″
295/30R23	30.0 × 11.6R23	23″
315/30R23	30.4 × 12.4R23	23″
325/30R23	30.7 × 12.8R23	23″
335/30R23	30.9 × 13.2R23	23″
255/30R24	30.0 × 10.0R24	24″
275/30R24	30.5 × 10.8R24	24″
285/30R24	30.7 × 11.2R24	24″

31-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	31 × 10.5R15	15″
—	31 × 11R15	15″
—	31 × 11.5R15	15″
—	31 × 12.5R15	15″
—	31 × 13R15	15″
—	31 × 13.5R15	15″
—	31 × 14.5R15	15″
—	31 × 16R15	15″
—	31 × 16.5R15	15″
—	31 × 18R15	15″
—	31 × 18.5R15	15″
—	31 × 9.5R15	15″
225/85R16	31.1 × 8.9R16	16″
225/90R16	31.9 × 8.9R16	16″
235/85R16	31.7 × 9.3R16	16″
265/75R16	31.6 × 10.4R16	16″
275/70R16	31.2 × 10.8R16	16″
285/70R16	31.7 × 11.2R16	16″
—	31 × 10.5R16	16″
—	31 × 11R16	16″
—	31 × 11.5R16	16″
—	31 × 12.5R16	16″
7.5R16	31.8 × 8.7R16	16″
235/80R17	31.8 × 9.3R17	17″
245/75R17	31.5 × 9.6R17	17″
255/70R17	31.1 × 10.0R17	17″
265/70R17	31.6 × 10.4R17	17″
275/65R17	31.1 × 10.8R17	17″
285/65R17	31.6 × 11.2R17	17″
—	31 × 10.5R17	17″
315/60R17	31.9 × 12.4R17	17″
235/70R18	31.0 × 9.3R18	18″
245/70R18	31.5 × 9.6R18	18″
255/65R18	31.1 × 10.0R18	18″
265/65R18	31.6 × 10.4R18	18″
275/60R18	31.0 × 10.8R18	18″
285/60R18	31.5 × 11.2R18	18″
235/65R19	31.0 × 9.3R19	19″
255/60R19	31.0 × 10.0R19	19″
225/70R19.5	31.9 × 8.9R19.5	19.5″
235/60R20	31.1 × 9.3R20	20″
245/60R20	31.6 × 9.6R20	20″
255/55R20	31.0 × 10.0R20	20″
265/55R20	31.5 × 10.4R20	20″
275/55R20	31.9 × 10.8R20	20″
285/50R20	31.2 × 11.2R20	20″
295/50R20	31.6 × 11.6R20	20″
—	31 × 18R20	20″
255/50R21	31.0 × 10.0R21	21″
275/50R21	31.8 × 10.8R21	21″
285/45R21	31.1 × 11.2R21	21″
325/40R21	31.2 × 12.8R21	21″
255/45R22	31.0 × 10.0R22	22″
265/45R22	31.4 × 10.4R22	22″
275/45R22	31.7 × 10.8R22	22″
285/40R22	31.0 × 11.2R22	22″
295/40R22	31.3 × 11.6R22	22″
305/40R22	31.6 × 12.0R22	22″
325/35R22	31.0 × 12.8R22	22″
255/40R23	31.0 × 10.0R23	23″
275/40R23	31.7 × 10.8R23	23″
295/35R23	31.1 × 11.6R23	23″
305/35R23	31.4 × 12.0R23	23″
285/35R24	31.9 × 11.2R24	24″
295/30R24	31.0 × 11.6R24	24″
335/30R24	31.9 × 13.2R24	24″
275/25R26	31.4 × 10.8R26	26″
295/25R26	31.8 × 11.6R26	26″

32-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	32 × 10R14	14″
—	32 × 10R15	15″
—	32 × 10.5R15	15″
—	32 × 11.5R15	15″
—	32 × 14R15	15″
—	32 × 16R15	15″
—	32 × 17.5R15	15″
—	32 × 18.5R15	15″
—	32 × 9.5R15	15″
265/80R16	32.7 × 10.4R16	16″
285/75R16	32.8 × 11.2R16	16″
305/70R16	32.8 × 12.0R16	16″
—	32 × 10R16	16″
—	32 × 11.5R16	16″
—	32 × 9R16	16″
—	32 × 12R16.5	16.5″
235/85R17	32.7 × 9.3R17	17″
255/75R17	32.1 × 10.0R17	17″
275/70R17	32.2 × 10.8R17	17″
285/70R17	32.7 × 11.2R17	17″
305/65R17	32.6 × 12.0R17	17″
—	32 × 10.5R17	17″
—	32 × 11.5R17	17″
235/80R18	32.8 × 9.3R18	18″
245/75R18	32.5 × 9.6R18	18″
255/70R18	32.1 × 10.0R18	18″
265/70R18	32.6 × 10.4R18	18″
275/65R18	32.1 × 10.8R18	18″
285/65R18	32.6 × 11.2R18	18″
305/60R18	32.4 × 12.0R18	18″
255/65R19	32.1 × 10.0R19	19″
255/60R20	32.0 × 10.0R20	20″
265/60R20	32.5 × 10.4R20	20″
285/55R20	32.3 × 11.2R20	20″
295/55R20	32.8 × 11.6R20	20″
305/50R20	32.0 × 12.0R20	20″
315/50R20	32.4 × 12.4R20	20″
325/50R20	32.8 × 12.8R20	20″
275/55R21	32.9 × 10.8R21	21″
315/45R21	32.2 × 12.4R21	21″
265/50R22	32.4 × 10.4R22	22″
275/50R22	32.8 × 10.8R22	22″
285/45R22	32.1 × 11.2R22	22″
305/45R22	32.8 × 12.0R22	22″
325/40R22	32.2 × 12.8R22	22″
285/40R23	32.0 × 11.2R23	23″
305/40R23	32.6 × 12.0R23	23″
325/35R23	32.0 × 12.8R23	23″
295/35R24	32.1 × 11.6R24	24″
305/35R24	32.4 × 12.0R24	24″
315/35R24	32.7 × 12.4R24	24″
405/25R24	32.0 × 15.9R24	24″

33-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	33 × 10.5R15	15″
—	33 × 11.5R15	15″
—	33 × 12.5R15	15″
—	33 × 13R15	15″
—	33 × 13.5R15	15″
—	33 × 14R15	15″
—	33 × 14.5R15	15″
—	33 × 15.5R15	15″
—	33 × 16.5R15	15″
—	33 × 19.5R15	15″
—	33 × 21.5R15	15″
—	33 × 22R15	15″
—	33 × 9R15	15″
—	33 × 9.5R15	15″
255/85R16	33.1 × 10.0R16	16″
295/75R16	33.4 × 11.6R16	16″
—	33 × 10.5R16	16″
—	33 × 11.5R16	16″
—	33 × 12.5R16	16″
—	33 × 13R16	16″
—	33 × 13.5R16	16″
—	33 × 14R16	16″
—	33 × 14.5R16	16″
—	33 × 9.5R16	16″
—	33.5 × 16.5R16	16″
—	33 × 11.5R16.5	16.5″
—	33 × 12.5R16.5	16.5″
—	33 × 14R16.5	16.5″
—	33 × 14.5R16.5	16.5″
—	33 × 15.5R16.5	16.5″
255/80R17	33.1 × 10.0R17	17″
285/75R17	33.8 × 11.2R17	17″
295/70R17	33.3 × 11.6R17	17″
305/70R17	33.8 × 12.0R17	17″
—	33 × 10.5R17	17″
—	33 × 11.5R17	17″
—	33 × 12.5R17	17″
—	33 × 13R17	17″
—	33 × 13.5R17	17″
—	33 × 9.5R17	17″
275/70R18	33.2 × 10.8R18	18″
285/70R18	33.7 × 11.2R18	18″
295/65R18	33.1 × 11.6R18	18″
305/65R18	33.6 × 12.0R18	18″
325/60R18	33.4 × 12.8R18	18″
—	33 × 10.5R18	18″
—	33 × 11.5R18	18″
—	33 × 12.5R18	18″
—	33 × 13R18	18″
—	33 × 13.5R18	18″
245/70R19.5	33.0 × 9.6R19.5	19.5″
—	33.6 × 8.0R19.5	19.5″
275/60R20	33.0 × 10.8R20	20″
285/60R20	33.5 × 11.2R20	20″
295/60R20	33.9 × 11.6R20	20″
305/55R20	33.2 × 12.0R20	20″
—	33 × 11.5R20	20″
—	33 × 12R20	20″
—	33 × 12.5R20	20″
—	33 × 13.5R20	20″
—	33 × 22R20	20″
375/45R20	33.3 × 14.8R20	20″
285/50R22	33.2 × 11.2R22	22″
295/50R22	33.6 × 11.6R22	22″
315/45R22	33.2 × 12.4R22	22″
—	33 × 12.5R22	22″
—	33 × 13.5R22	22″
—	33 × 14.5R22	22″
355/40R22	33.2 × 14.0R22	22″
285/40R24	33.0 × 11.2R24	24″
295/40R24	33.3 × 11.6R24	24″
—	33 × 13.5R24	24″
295/30R26	33.0 × 11.6R26	26″
305/30R26	33.2 × 12.0R26	26″
295/25R28	33.8 × 11.6R28	28″

34-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	34 × 10.5R15	15″
—	34 × 12.5R15	15″
—	34 × 9.5R15	15″
315/75R16	34.6 × 12.4R16	16″
—	34 × 10.5R16	16″
—	34 × 12.5R16	16″
—	34 × 13.5R16	16″
—	34 × 9R16	16″
—	34.5 × 17R16	16″
255/85R17	34.1 × 10.0R17	17″
275/80R17	34.3 × 10.8R17	17″
315/70R17	34.4 × 12.4R17	17″
325/70R17	34.9 × 12.8R17	17″
—	34 × 10.5R17	17″
285/75R18	34.8 × 11.2R18	18″
295/70R18	34.3 × 11.6R18	18″
305/70R18	34.8 × 12.0R18	18″
325/65R18	34.6 × 12.8R18	18″
—	34 × 12.5R18	18″
275/65R20	34.1 × 10.8R20	20″
285/65R20	34.6 × 11.2R20	20″
305/60R20	34.4 × 12.0R20	20″
315/60R20	34.9 × 12.4R20	20″
—	34 × 11.5R20	20″
355/50R20	34.0 × 14.0R20	20″
265/60R22	34.5 × 10.4R22	22″
285/55R22	34.3 × 11.2R22	22″
295/55R22	34.8 × 11.6R22	22″
305/50R22	34.0 × 12.0R22	22″
325/50R22	34.8 × 12.8R22	22″
275/50R24	34.8 × 10.8R24	24″
295/45R24	34.5 × 11.6R24	24″
385/35R24	34.6 × 15.2R24	24″

35-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	35 × 10.5R15	15″
—	35 × 11R15	15″
—	35 × 11.5R15	15″
—	35 × 12.5R15	15″
—	35 × 13.5R15	15″
—	35 × 14.5R15	15″
—	35 × 15R15	15″
—	35 × 15.5R15	15″
—	35 × 16R15	15″
—	35 × 10.5R16	16″
—	35 × 11.5R16	16″
—	35 × 12.5R16	16″
—	35 × 14.5R16	16″
—	35 × 15R16	16″
—	35 × 16R16	16″
375/65R16	35.2 × 14.8R16	16″
—	35 × 12.5R16.5	16.5″
—	35 × 14.5R16.5	16.5″
—	35 × 15R16.5	16.5″
—	35 × 15.5R16.5	16.5″
—	35 × 16R16.5	16.5″
—	35 × 9.5R16.5	16.5″
—	35 × 10.5R17	17″
—	35 × 11.5R17	17″
—	35 × 12.5R17	17″
—	35 × 13.5R17	17″
—	35 × 14.5R17	17″
315/70R18	35.4 × 12.4R18	18″
—	35 × 11.5R18	18″
—	35 × 12.5R18	18″
—	35 × 13R18	18″
—	35 × 13.5R18	18″
—	35 × 14.5R18	18″
285/70R20	35.7 × 11.2R20	20″
295/65R20	35.1 × 11.6R20	20″
325/60R20	35.4 × 12.8R20	20″
—	35 × 11.5R20	20″
—	35 × 12.5R20	20″
—	35 × 13R20	20″
—	35 × 13.5R20	20″
—	35 × 14.5R20	20″
—	35 × 15.5R20	20″
275/60R22	35.0 × 10.8R22	22″
305/55R22	35.2 × 12.0R22	22″
—	35 × 12.5R22	22″
—	35 × 13.5R22	22″
—	35 × 14.5R22	22″
—	35 × 15.5R22	22″
375/45R22	35.3 × 14.8R22	22″
315/45R24	35.2 × 12.4R24	24″
325/45R24	35.5 × 12.8R24	24″
—	35 × 12.5R24	24″
—	35 × 13.5R24	24″
—	35 × 15.5R24	24″
355/40R24	35.2 × 14.0R24	24″
375/40R24	35.8 × 14.8R24	24″
315/40R26	35.9 × 12.4R26	26″
—	35 × 13.5R26	26″
385/30R26	35.1 × 15.2R26	26″

36-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	36 × 12.5R15	15″
—	36 × 13.5R15	15″
—	36 × 14.5R15	15″
325/80R16	36.5 × 12.8R16	16″
345/75R16	36.4 × 13.6R16	16″
—	36 × 12.5R16	16″
—	36 × 13R16	16″
—	36 × 13.5R16	16″
—	36 × 14.5R16	16″
—	36 × 12.5R16.5	16.5″
—	36 × 13.5R16.5	16.5″
—	36 × 14.5R16.5	16.5″
—	36 × 16R16.5	16.5″
355/70R17	36.6 × 14.0R17	17″
—	36 × 12.5R17	17″
—	36 × 13.5R17	17″
355/65R18	36.2 × 14.0R18	18″
—	36 × 13.5R18	18″
345/60R20	36.3 × 13.6R20	20″
355/60R20	36.8 × 14.0R20	20″
—	36 × 13.5R20	20″
—	36 × 15.5R20	20″
375/55R20	36.2 × 14.8R20	20″
325/55R22	36.1 × 12.8R22	22″
335/55R22	36.5 × 13.2R22	22″
315/50R24	36.4 × 12.4R24	24″

37-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	37 × 12.5R15	15″
—	37 × 13R15	15″
—	37 × 13.5R15	15″
—	37 × 14R15	15″
—	37 × 14.5R15	15″
365/75R16	37.6 × 14.4R16	16″
—	37 × 12.5R16	16″
—	37 × 13R16	16″
—	37 × 13.5R16	16″
—	37 × 14R16	16″
—	37 × 14.5R16	16″
385/70R16	37.2 × 15.2R16	16″
395/70R16	37.8 × 15.6R16	16″
—	37 × 12.5R16.5	16.5″
—	37 × 13R16.5	16.5″
—	37 × 14R16.5	16.5″
—	37 × 11.5R17	17″
—	37 × 12.5R17	17″
—	37 × 13R17	17″
—	37 × 13.5R17	17″
—	37 × 14R17	17″
—	37 × 11.5R18	18″
—	37 × 12.5R18	18″
—	37 × 13.5R18	18″
—	37 × 14.5R18	18″
—	37 × 11.5R20	20″
—	37 × 12.5R20	20″
—	37 × 13.5R20	20″
—	37 × 14.5R20	20″
325/60R22	37.4 × 12.8R22	22″
—	37 × 12.5R22	22″
—	37 × 13.5R22	22″
345/50R24	37.6 × 13.6R24	24″
—	37 × 13.5R24	24″
—	37 × 14.5R24	24″
—	37 × 13.5R26	26″
325/35R28	37.0 × 12.8R28	28″
37X14.5R28	37 × 14.5R28	28″
315/30R30	37.4 × 12.4R30	30″

38-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	38 × 12.5R15	15″
—	38 × 13R15	15″
—	38 × 14.5R15	15″
—	38 × 15.5R15	15″
—	38.5 × 11R15	15″
—	38.5 × 13.5R15	15″
—	38.5 × 14.5R15	15″
—	38.5 × 15R15	15″
—	38.5 × 16R15	15″
—	38 × 13R16	16″
—	38 × 14.5R16	16″
—	38 × 15.5R16	16″
—	38.5 × 11R16	16″
—	38.5 × 13.5R16	16″
—	38.5 × 14.5R16	16″
—	38.5 × 15R16	16″
—	38 × 11R16.5	16.5″
—	38 × 12.5R16.5	16.5″
—	38 × 15.5R16.5	16.5″
—	38.5 × 11R16.5	16.5″
—	38.5 × 13.5R16.5	16.5″
—	38.5 × 14.5R16.5	16.5″
—	38.5 × 15R16.5	16.5″
—	38.5 × 16R16.5	16.5″
—	38 × 11.5R17	17″
—	38 × 12.5R17	17″
—	38 × 13.5R17	17″
—	38 × 14.5R17	17″
—	38 × 15.5R17	17″
—	38.5 × 13.5R17	17″
—	38.5 × 14.5R17	17″
—	38 × 11.5R18	18″
—	38 × 13.5R18	18″
—	38 × 14.5R18	18″
—	38 × 15R18	18″
—	38 × 15.5R18	18″
—	38.5 × 14.5R18	18″
—	38 × 11.5R20	20″
—	38 × 13.5R20	20″
—	38 × 14.5R20	20″
—	38 × 15.5R20	20″
—	38.5 × 13.5R20	20″
—	38.5 × 14.5R20	20″
395/60R20	38.7 × 15.6R20	20″
355/60R22	38.8 × 14.0R22	22″
—	38 × 13.5R22	22″
—	38 × 15.5R22	22″
—	38 × 13.5R24	24″
—	38 × 14R24	24″
—	38 × 15.5R24	24″
—	38 × 15.5R26	26″

39-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	39 × 13.5R15	15″
—	39.5 × 13.5R15	15″
—	39.5 × 15R15	15″
—	39.5 × 18R15	15″
—	39 × 13.5R16	16″
—	39.5 × 13.5R16	16″
—	39.5 × 15R16	16″
—	39 × 13.5R16.5	16.5″
—	39.5 × 13.5R16.5	16.5″
—	39.5 × 15R16.5	16.5″
—	39.5 × 18R16.5	16.5″
—	39 × 13.5R17	17″
—	39.5 × 13.5R17	17″
—	39.5 × 15R17	17″
—	39 × 13.5R20	20″
—	39.5 × 13.5R20	20″
—	39.5 × 15R20	20″

40-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	40 × 16R15	15″
—	40 × 16R16	16″
—	40 × 12.5R17	17″
—	40 × 13.5R17	17″
—	40 × 14.5R17	17″
—	40 × 16R17	17″
—	40 × 13.5R18	18″
—	40 × 14.5R18	18″
—	40 × 13.5R20	20″
—	40 × 14.5R20	20″
—	40 × 15.5R20	20″
—	40 × 14.5R22	22″
—	40 × 15.5R22	22″
—	40 × 13.5R24	24″
—	40 × 14.5R24	24″
—	40 × 15.5R24	24″
—	40 × 13.5R26	26″
—	40 × 15.5R26	26″
—	40 × 15.5R28	28″

41-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	41 × 14.5R16	16″
—	41 × 14.5R17	17″
—	41 × 14.5R18	18″
—	41 × 14.5R20	20″
—	41 × 14.5R22	22″

42-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	42 × 14R15	15″
—	42 × 15R15	15″
—	42.5 × 13.5R15	15″
—	42 × 14R16	16″
—	42 × 15R16	16″
—	42.5 × 13.5R16	16″
—	42 × 14R16.5	16.5″
—	42 × 15R16.5	16.5″
—	42.5 × 13.5R16.5	16.5″
—	42 × 13.5R17	17″
—	42 × 14R17	17″
—	42 × 14.5R17	17″
—	42 × 15R17	17″
—	42.5 × 13.5R17	17″
—	42 × 13.5R20	20″
—	42 × 14.5R20	20″
—	42 × 15R20	20″
—	42.5 × 13.5R20	20″
—	42 × 15.5R22	22″
—	42.5 × 13.5R22	22″
—	42 × 15.5R24	24″
—	42 × 15.5R26	26″
—	42 × 15.5R28	28″
—	42 × 13.5R30	30″

43-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	43 × 14.5R16.5	16.5″
—	43 × 14.5R17	17″
—	43 × 15R17	17″
—	43 × 14.5R20	20″
—	43 × 15R20	20″

44-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	44 × 18.5R15	15″
—	44 × 19.5R15	15″
—	44 × 21R15	15″
—	44 × 19.5R16	16″
—	44 × 21R16	16″
—	44 × 18.5R16.5	16.5″
—	44 × 19.5R16.5	16.5″
—	44 × 21R16.5	16.5″
—	44 × 19.5R17	17″
—	44 × 21R17	17″
—	44 × 13.5R20	20″
—	44 × 19.5R20	20″
—	44 × 21R20	20″
—	44 × 16.5R28	28″
—	44 × 16.5R30	30″

45-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	45 × 14.5R20	20″

46-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	46 × 19.5R16	16″
—	46 × 19.5R20	20″

47-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	47 × 17R15	15″
—	47 × 17R16.5	16.5″
—	47 × 17R17	17″

48-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	48 × 12.5R16.5	16.5″

49-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	49 × 21R16.5	16.5″
—	49 × 21R17	17″
—	49 × 17R20	20″
—	49 × 21R20	20″

54-Inch Tire Size Conversion Chart by Tire Diameter

Metric Tire Size	Inch Equivalent	Wheel
—	54 × 19.5R17	17″
—	54 × 19.5R20	20″

Metric vs Inch Tire Sizes

Tires are commonly described using either metric sizing or inch-based sizing.

A metric size such as 275/70R17 gives the tire’s width, sidewall proportion, and wheel diameter. An inch-based size such as 35×12.50R17 gives the approximate overall tire diameter, width, and wheel diameter.

These two sizing systems can describe tires with similar overall dimensions, but they are not exact one-to-one equivalents. For example, two tires that are both around 35 inches tall can still have different widths or actual measured diameters.

For that reason, use a conversion chart to compare sizes rather than assuming that one size is a guaranteed replacement for another. Always check the tire manufacturer’s specifications and your vehicle’s fitment requirements before changing sizes. For general tire safety and guidance on choosing the correct tire size, see the NHTSA tire safety guidance.

Tire Diameter vs Wheel Diameter

Tire diameter and wheel diameter refer to two different measurements. Tire diameter is the total height of the mounted tire, measured from one side of the tread to the other. Wheel diameter is the diameter of the wheel inside the tire.

For example, a 275/70R17 tire fits a 17-inch wheel, but its calculated overall diameter is about 32.2 inches. The difference comes from the tire’s sidewalls above and below the wheel.

This distinction matters when comparing tire sizes. A larger overall tire can affect ground clearance, speedometer readings, gearing, and the available space around the vehicle.

A conversion chart gives you a useful size comparison, but actual tire dimensions can vary slightly between brands and models. The manufacturer’s published specifications are the better reference when exact dimensions or fitment matter.

Conclusion

Finding the right tire size does not have to be complicated. A tire’s metric size can be converted into an inch-based measurement by comparing its overall diameter, section width, and wheel diameter. The tire size conversion chart above makes it easier to compare metric and inch sizes and find the closest equivalent for your needs.

If you are comparing different tire dimensions, you can also use our tire size calculator to check overall diameter, width, sidewall height, and other measurements. For a broader reference, see our tire size chart to explore tire dimensions across different wheel sizes.

Remember that a conversion chart shows dimensional equivalents, not guaranteed vehicle fitment. Before changing tire sizes, always verify wheel compatibility, load rating, speed rating, clearance, and the manufacturer’s recommended specifications.

Use the charts above as a starting point for comparing sizes, then confirm the final tire and wheel combination for your specific vehicle.