Tire Size Calculator


Ported from a C program written by Mark Sirota. TRX wheel sizes (which are measured in millimeters instead of inches) are handled correctly. Note that the output of this program assumes that the size figures in the specifications are extremely accurate. As this is seldom the case, it is best to check with each tire manufacturer for more precise information.


Please Enter the sizes to compare:

You must complete the first line in the table before continuing. The blue columns are required entries. All others will calculate.

Section Width Profile Wheel Diameter Sidewall Radius Circumfernece Revs/mile % difference

mm

mm

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0%

mm

mm

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%

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mm

mm

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