Gear Ratio & Speed Calculator

Analyze output speed and torque for gear trains, belt drives, or chain drives.

Gear Parameters

Driver Teeth (N1)

Driven Teeth (N2)

Input Speed (RPM)

Input Torque (Nm)

Fundamental Laws:

$\begin{array}{rcl} \text{Ratio} &=& \frac{N_{driven}}{N_{driver}} \\ \omega_{out} &=& \frac{\omega_{in}}{\text{Ratio}} \\ \tau_{out}&=&\frac{\tau_{in}}{\text{Ratio}} \end{array}$

(assuming 100% efficiency)

Output Analysis

Mechanical Advantage (Ratio)

3.000:1

Output Speed

500.00 RPM

Output Torque

15.00 Nm

Drive Train Visual

Driver

Driven

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