Bike Gear Ratio Calculator

Calculate gear inches and development meters to optimize your cycling cadence and spread.

Front Chainring (Teeth)

Rear Cog (Teeth)

Wheel Size

Cadence (RPM)90

Grinding (60)Spinning (90)Sprinting (120)

Gear Ratio

4.55

Gear Inches

122.7"

Speed (km/h)

52.9

Speed (mph)

32.9

*Calculated Development: 9.79 meters per pedal stroke

A measure of how far the bike travels with one revolution of the pedals.

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