Gear Ratio

Try our simple and easy to use Gear Ratio Calculator to quickly find the correct gear ratio for your differential. Simply enter the number of teeth on your ring gear and pinion gear and click the "Solve" button.

Ring Gear

Pinion Gear

Gear Ratio

RANDYS Worldwide makes no guarantee to the accuracy of calculations. Please email CustomerService@randysworldwide.com with any calculation errors.

Need More Help?

Our staff is standing by to answer your drivetrain questions.

Ask an Expert!

Resource Center

Check out our searchable collection of guides, videos and more.

View Resources