Tire Size Converter

Convert metric tire sizes to inches.

Example: 255/45R17

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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

285/25R22 = 27.6x11.2R22
235/70R14 = 27x9.3R14
235/40R18 = 25.4x9.3R18
315/35R19 = 27.7x12.4R19
275/60R17 = 30x10.8R17
255/40R19 = 27x10R19
295/55R15 = 27.8x11.6R15
195/60R16 = 25.2x7.7R16
145/70R12 = 20x5.7R12
215/40R14 = 20.8x8.5R14
135/80R17 = 25.5x5.3R17
155/80R18 = 27.8x6.1R18
325/35R28 = 37x12.8R28
235/45R15 = 23.3x9.3R15
275/25R26 = 31.4x10.8R26
355/30R19 = 27.4x14R19
305/35R23 = 31.4x12R23
285/70R16 = 31.7x11.2R16
175/55R16 = 23.5x6.9R16
315/20R30 = 35x12.4R30