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Gear Ratio Calculator

Logic & Formula

The gear ratio is determined by the number of teeth on each gear. It defines how speed and torque are transferred between meshed gears.

Ratio = Driven TeethDriving Teeth RPMout = RPMin / Ratio Torqueout = Torquein × Ratio
Driving Gear (Input)
Driven Gear (Output)

Gear Ratio

2.00 : 1

Output RPM

500.00

Output Torque

20.00 N·m

Speed Change

50.0%

Type ⓘ

Reduction