The 2nd Pulley Diameter equation calculates the diameter of a second pulley based on the RPMs and Diameter of the first pulley and the RPMs of the second pulley.
INSTRUCTIONS: Choose units and enter the following:
(RPM1) RPMs of Pulley 1
(D1) Diameter of Pulley 1
(RPM2) RPMs of Pulley 2
2nd Pulley Diameter (D2): The calculator returns the diameter of pulley 2 in meters. However this can be automatically converted to other length units via the pull-down menu.