JavaScript Calculator of Belt and Pulley Dimensions

This calculator gives exact solutions, standard equations are approximate


Enter input, then click "calculate" button

Check boxes control calculated values


Driver Pulley Pitch Diameter:
Variable
Driven Pulley Pitch Diameter:
Variable
Drive Ratio:
Variable
Center to Center Distance:
Fixed
Belt Length:
Fixed
Input RPM:
Fixed
Output RPM:
Fixed
minimum wrap angle: