# Gear Ratio Calculator

> Free gear, RPM, axle and speed calculators for cars, bikes & RC


## Pages

- [Disclaimer](https://gear-ratio-calculator.com/disclaimer/): Gear Ratio Calculator provides free estimation tools for educational purposes.
- [Terms of Service](https://gear-ratio-calculator.com/terms-of-service/): By using Gear Ratio Calculator ("the site"), you agree to these terms.
- [Contact Us](https://gear-ratio-calculator.com/contact-us/): Have a question about a calculator, spotted an error, or want to suggest a feature? We read every message.
- [About Us](https://gear-ratio-calculator.com/about-us/): Gear Ratio Calculator is a free collection of precision calculators for gear ratios, engine RPM, axle ratios, pulley speeds, speedometer gears, tire-size gearing changes, power-to-weight ratios, and drag-strip ET conversions.
- [1/8 to 1/4 Mile Conversion Calculator](https://gear-ratio-calculator.com/eighth-to-quarter-mile-conversion-calculator/)
- [Tire Gear Ratio Calculator](https://gear-ratio-calculator.com/tire-gear-ratio-calculator/)
- [Speedometer Gear Calculator](https://gear-ratio-calculator.com/speedometer-gear-calculator/)
- [Pulley RPM Calculator](https://gear-ratio-calculator.com/pulley-rpm-calculator/)
- [RPM Calculator](https://gear-ratio-calculator.com/rpm-calculator/)
- [Power to Weight Ratio Calculator](https://gear-ratio-calculator.com/power-to-weight-ratio-calculator/)
- [Axle Ratio Calculator](https://gear-ratio-calculator.com/axle-ratio-calculator/)
- [Home](https://gear-ratio-calculator.com/)
- [Privacy Policy](https://gear-ratio-calculator.com/privacy-policy/): Gear Ratio Calculator ("we", "our", "the site") respects your privacy. This policy explains what information we collect and how it is used.


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