Frequency Converter (Hz, kHz, MHz, RPM)
Frequency converter: hertz, kilohertz, megahertz, gigahertz, terahertz and revolutions per minute (RPM).
How to use this calculator
- Type the value you want to convert.
- Choose the unit you are converting from and the one you want.
- Read the result, or the full table of equivalent units below.
One hertz is one cycle per second. For rotating machines, 1 RPM = 1/60 Hz, so a motor at 3,000 RPM turns at 50 Hz.
Radio, Wi-Fi and processors are described in MHz and GHz.
Conversion formula
1 kHz = 1 000 Hz · 1 Hz = 0.001 kHz
Common conversions: kilohertz → hertz
| kHz | Hz |
|---|---|
| 1 kHz | 1 000 Hz |
| 2 kHz | 2 000 Hz |
| 5 kHz | 5 000 Hz |
| 10 kHz | 10 000 Hz |
| 20 kHz | 20 000 Hz |
| 50 kHz | 50 000 Hz |
| 100 kHz | 100 000 Hz |
| 1 000 kHz | 1 000 000 Hz |
Frequently asked questions
How many Hz is 3,000 RPM?
50 Hz.