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Tyre Size Calculator

Calculates the diameter, width, sidewall, circumference, and revolutions per mile/km of any tire. Just enter t...

Free

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Calculates the diameter, width, sidewall, circumference, and revolutions per mile/km of any tire. Just enter the tire size.
Compare two different tyre sizes and see the differences right away.
Works with both Metric and Imperial units.

Last update

Feb. 10, 2020

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