Revolutions per minute

Spins
per
second RPM ¼  15 ½  30 1  60 2  120 5  300 10  600 25  1500
Revolutions per minute, sometimes called RPM, is a measure of angular frequency. It means the number of times something spins in one minute.

For example, if a wheel spins one time in one second, it is doing 60 RPM, because there is 60 seconds in one minute.

Category:Units of frequency