RPM to Linear Speed Converter
Convert revolutions per minute into linear speed at the rim. A rotation rate on its own is not a speed: the answer depends on the diameter of whatever is turning, so that is asked for here.
Convert RPM to linear speed
Frequently Asked Questions
Multiply the circumference by the revolutions per minute, then divide by 60 for a per-second figure. The circumference is π times the diameter.
Because a point on the rim travels one circumference per revolution. At the same RPM, a larger wheel covers more ground.
Surface speed, at the rim. The centre of a rotating shaft does not move at all.
Wheel and vehicle speed, belt and pulley drives, conveyor rollers, and cutting speed on lathes and mills, where it is usually called surface speed.