Convert hertz, kilohertz, megahertz, gigahertz and revolutions per minute.
Units of frequency
The unit of frequency is the hertz (Hz): 1 Hz is one cycle per second. Mains electricity is 50 Hz in Europe and 60 Hz in the US. Radio and computing use kilohertz, megahertz and gigahertz (1 GHz = 1,000 MHz). Rotating machinery uses revolutions per minute (rpm): 1 rpm = 1/60 Hz.
Conversion factors
1 Hz = 0.001 kHz
1 kHz = 1,000 Hz
One unit converted to all others: Hertz (Hz)
| Unit | Value |
|---|
| Hertz (Hz) | 1 |
| Kilohertz (kHz) | 0.001 |
| Megahertz (MHz) | 0.000001 |
| Gigahertz (GHz) | 0.000000001 |
| Revolutions per minute (rpm) | 60 |
| Radians per second (rad/s) | 6.28319 |
Common values
| Hertz (Hz) | Kilohertz (kHz) |
|---|
| 1 Hz | 0.001 kHz |
| 5 Hz | 0.005 kHz |
| 10 Hz | 0.01 kHz |
| 50 Hz | 0.05 kHz |
| 100 Hz | 0.1 kHz |
| Kilohertz (kHz) | Hertz (Hz) |
|---|
| 1 kHz | 1,000 Hz |
| 5 kHz | 5,000 Hz |
| 10 kHz | 10,000 Hz |
| 50 kHz | 50,000 Hz |
| 100 kHz | 100,000 Hz |
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