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

265/35R20 = 27.3x10.4R20
315/35R30 = 38.7x12.4R30
275/40R19 = 27.7x10.8R19
225/40R20 = 27.1x8.9R20
225/55R19 = 28.8x8.9R19
165/65R14 = 22.4x6.5R14
245/35R17 = 23.8x9.6R17
295/70R18 = 34.3x11.6R18
275/55R19 = 30.9x10.8R19
225/30R18 = 23.3x8.9R18
255/85R16 = 33.1x10R16
315/35R20 = 28.7x12.4R20
205/55R14 = 22.9x8.1R14
305/70R18 = 34.8x12R18
305/25R19 = 25x12R19
325/30R19 = 26.7x12.8R19
285/75R18 = 34.8x11.2R18
305/75R16 = 34x12R16
275/25R21 = 26.4x10.8R21
225/85R16 = 31x8.9R16