Tire Size Converter

Convert metric tire sizes to inches.

Example: 255/45R17

/
R

Tire Section Width
Tire Side
Tire Circumference
Metric Inches
Overall Diameter
Tread Width
Aspect Ratio
Rim Diameter
Sidewall Height
Circumference
Revolutions

Popular Tire Size Conversions

275/30R22 = 28.5x10.8R22
285/35R22 = 29.9x11.2R22
175/90R17 = 29.4x6.9R17
285/65R17 = 31.6x11.2R17
155/70R13 = 21.6x6.1R13
265/65R18 = 31.5x10.4R18
255/40R22 = 30x10R22
275/55R16 = 27.9x10.8R16
255/55R16 = 27x10R16
125/80R15 = 22.9x4.9R15
245/45R19 = 27.7x9.6R19
295/23R24 = 29.4x11.6R24
315/35R19 = 27.7x12.4R19
255/65R18 = 31.1x10R18
225/35R19 = 25.2x8.9R19
245/55R19 = 29.6x9.6R19
205/60R18 = 27.7x8.1R18
185/80R14 = 25.7x7.3R14
375/55R20 = 36.2x14.8R20
145/70R17 = 25x5.7R17