Belt Calculator

Our online Belt Calculator gives you ease of finding the correct drive belt for your power transmission systems. All you have to do is input the dimensions of your pulleys into the fields and the calculator will do all the rest!

Pitch diam. of large pulley in millimetres:
Pitch diam. of small pulley in millimetres:
Centre distance in millimetres:
RPM: RPM SmallRPM Large

Result:

Demonstration: