Tyre Size Calculator

Use this page to work out the radius, circumference and diameter of any size tyre. You can also run comparisons between different tyres and work out the differences in size and odometer corrections. The formulas will also show you the matching ExplorOz Wheel covers that match your tyres.
Created: August 2007
Revised: October 2017
Latest Feedback: October 2015

Metric Tyre Size Calculator

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Imperial Tyre Size Calculator


Imperial LT Tyre Size Calculator

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Tyre Size Difference Comparison

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