Unit & Tire Converter

Convert units and tire sizes

From

235/45 R18

(diff +0.06%)

295/40 R17

(diff -0.07%)

175/75 R16

(diff +0.09%)

265/40 R18

(diff +0.13%)

Note

Conversions are calculated from standard formulas — actual tire/wheel measurements may vary slightly by manufacturer.

Calculate and compare tire sizes

Find a matching size for a new wheel diameter

Calculate offset and wheel position

Convert units and tire sizes

Compare multiple sizes and generate a report

Calculate speed reading deviation