Revolution per minute (rpm)

One full turn every minute: 2π/60 rad/s. Used for engines, motors and drives.

What is a revolution per minute?

Symbol: rpm
Quantity: Angular Velocity
Unit system: other
Definition: One full turn every minute: 2π/60 rad/s. Used for engines, motors and drives.
Exact: Yes, the value is exact by definition
Source: SI Brochure, 9th edition (BIPM, 2019)

Used for engine speed, motors, fans, drills, washing machine spin cycles and record players.

Revolution per minute in other units
Revolution per minute	Radian per second	Degree per second	Revolution per second
1 rpm	≈ 0.1047197551 rad/s	= 6 °/s	≈ 0.01666666667 rev/s
10 rpm	≈ 1.047197551 rad/s	= 60 °/s	≈ 0.1666666667 rev/s
100 rpm	≈ 10.47197551 rad/s	= 600 °/s	≈ 1.666666667 rev/s
1000 rpm	≈ 104.7197551 rad/s	= 6000 °/s	≈ 16.66666667 rev/s

The next smaller angular velocity unit is the degree per second (°/s). 1 rpm = 6 °/s, and 1 °/s ≈ 0.1666666667 rpm.

The next larger angular velocity unit is the radian per second (rad/s). 1 rpm ≈ 0.1047197551 rad/s, and 1 rad/s ≈ 9.549296586 rpm.

How many radians per second are in one revolution per minute?: One revolution per minute ≈ 0.1047197551 rad/s (radians per second).
How many degrees per second are in one revolution per minute?: One revolution per minute = 6 °/s (degrees per second).
How many revolutions per second are in one revolution per minute?: One revolution per minute ≈ 0.01666666667 rev/s (revolutions per second).