Hertz to revolutions per minute
Multiply hertz by 60 to get revolutions per minute.
50 Hz = 3,000 rpm
How to convert hertz to revolutions per minute
The revolution per minute is revolutions per minute, one sixtieth of a hertz — a rotational-speed unit. The hertz is the SI unit of frequency, one cycle per second.
Worked example — 50 Hz: 50 × 60 = 3,000 rpm.
Hertz to revolutions per minute table
| Hertz | Revolutions per minute |
|---|---|
| 1 Hz | 60 rpm |
| 5 Hz | 300 rpm |
| 10 Hz | 600 rpm |
| 20 Hz | 1,200 rpm |
| 50 Hz | 3,000 rpm |
| 60 Hz | 3,600 rpm |
| 100 Hz | 6,000 rpm |
| 500 Hz | 30,000 rpm |
| 1,000 Hz | 60,000 rpm |
Reverse and related
About hertz and revolutions per minute
Hertz (Hz)
1 Hz = 60 rpmDefinition. The SI unit of frequency, one cycle per second
History and origin
The hertz is the SI unit of frequency, one cycle per second, named after Heinrich Hertz, who first produced and detected radio waves in the 1880s. It replaced the older term cycles per second.
Current use
Hertz measure screen refresh rates, audio pitch and the frequency of mains electricity.
Source: BIPM SI Brochure (2019); ISO 80000-3
Revolution per minute (rpm)
1 rpm = 0.0166667 HzDefinition. Revolutions per minute, one sixtieth of a hertz — a rotational-speed unit
History and origin
Revolutions per minute counts full turns each minute, and became the everyday measure of rotational speed with engines and machinery. One rpm is one sixtieth of a hertz.
Current use
rpm is used for engine and motor speed, record-player speeds like 33 and 45, and the spin rate of hard drives.
Source: BIPM SI Brochure (2019); ISO 80000-3
Where people use this
Hertz: refresh rates, audio, mains power. Revolutions per minute: engine and motor speed, record players, hard drives. 50 Hz is 3000 rpm.
Every value is carried to full double precision; the display is rounded.
Both units are defined in BIPM SI Brochure (2019); ISO 80000-3.
Questions people ask
How many rpm is 50 Hz?
50 Hz is 3000 rpm.
How many rpm in a hertz?
One hertz is 60 rpm.
How many rpm is 60 Hz?
60 Hz (US mains frequency) is 3600 rpm.