what is revolution per minute
RPM and rpm redirect here. For other uses, see RPM (disambiguation) . Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min) is a measure of the frequency of rotation, specifically the number of rotations around a fixed axis in one minute.It is used as a measure of rotational speed of a mechanical component.PM and rpm redirect here. For other uses, see RPM (disambiguation) . Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min) is a measure of the frequency of rotation, specifically the number of rotations around a fixed axis in one minute.