Calculators And Tools

Gear Ratio Calculator

Ring-and-pinion selection made easy!

Save yourself the headache and let us figure out your ring-and-pinion gear ratio! Just type in your info (example: 5000 RPM), press calculate, and you’ll get the right ratio without the guesswork.

Solve For
Gear Ratio
(ex. 4.56)
RPM
(ex. 5000)
Tire Diameter (in.)
(ex. 28)
MPH
(ex. 45)
*** Calculated using a 1:1 final
drive ratio (No Overdrive)
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