Popular frequency conversions
Frequency units
Frequency counts cycles per second. One hertz is one cycle per second, so 60 RPM is exactly 1 Hz.
| Unit | Symbol | In hertz | Definition |
|---|---|---|---|
| Hertz | Hz | 1 Hz | One cycle per second. |
| Kilohertz | kHz | 1,000 Hz | |
| Megahertz | MHz | 1,000,000 Hz | |
| Gigahertz | GHz | 1,000,000,000 Hz | |
| Terahertz | THz | 1,000,000,000,000 Hz | |
| Revolution per minute | rpm | 0.01666666667 Hz | One turn per minute, one sixtieth of a hertz. |
| Beat per minute | bpm | 0.01666666667 Hz |
Calculate with frequency
The smart calculator does arithmetic across frequency units and picks a sensible unit for the answer. Try 3000 rpm to Hz.
Questions and answers
Which frequency units can I convert?
All 7: hertz, kilohertz, megahertz, gigahertz, terahertz, revolutions per minute, beats per minute.
What is the SI unit of frequency?
This converter uses the hertz (Hz) as its base unit. Frequency counts cycles per second. One hertz is one cycle per second, so 60 RPM is exactly 1 Hz.
How precise are the results?
Factors are the exact legal definitions where one exists (an inch is exactly 2.54 cm, a pound exactly 0.45359237 kg). Results show 10 significant digits by default; the precision menu offers 4 to 15.
Does the frequency converter work offline?
Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.