CalcMountain

Gear Ratio Calculator

Calculate the gear ratio between two meshing gears using tooth counts. Determines output speed and torque based on the gear ratio. Gear ratio = driven teeth / driving teeth.

Inputs

Results

Gear Ratio

3.00 : 1

Output Speed

333.3 RPM

Output Torque

30.00 N·m

Gear Ratio Results

ParameterValue
Driving Gear Teeth20
Driven Gear Teeth60
Gear Ratio3.0000 : 1
Ratio (simplified)60 : 20
Input Speed1000 RPM
Output Speed333.33 RPM
Input Torque10 N·m
Output Torque30.00 N·m
Mechanical Advantage3.0000×
TypeSpeed reduction / Torque increase

Frequently Asked Questions

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