DBDirt Bike Finder
MotocrossEnduroOff-roadTrailMiniDual-sport
Tire & Wheel

Tire Wheel RPM Calculator

Wheel RPM and distance per revolution from speed and tire diameter — the tire-side version of the performance wheel-RPM tool.

Inputs
Results
Live

  • Wheel RPM

    487.1rpm

  • Revs per mile

    731

  • Distance per rev

    7.23ft

Formula

Wheel RPM = mph × 336 / Ø

Related calculators

Tire Size
Decode a size like 80/100-21 or 110/90-19 into diameter, sidewall, and circumference.
Tire Diameter
Overall diameter from a metric dirt-bike size, with a second path if you already measured the tire on the bike.
Tire Circumference
Rolling circumference from diameter or from a metric size. This is the number a speedometer calibration cares about.
Tire Pressure
A starting PSI/bar map from rider weight and terrain. MX pressures are low on purpose — this is not a street-tire load table.