maratoolHow to convert Hz to RPM and rad/s
Type a frequency — read Hz, kHz, MHz, GHz, RPM, or rad/s instantly.
Clock speeds read GHz, motors read RPM, music reads BPM, and control theory reads rad/s. The Frequency Converter converts between all of them through the hertz.
How it works
- Pick units — "Hertz (Hz)" to "Revolutions per minute (RPM)", or any other pair.
- Type a value — the result updates as you type, with swap and copy.
- Copy — one click, with "Copied!" feedback.
Frequency conversion factors
Every unit converts through the hertz (the base unit). To convert A → B, multiply by A's factor and divide by B's:
| Unit | = this many hertzs |
|---|---|
| Hertz (Hz) | 1 |
| Kilohertz (kHz) | 1,000 |
| Megahertz (MHz) | 1,000,000 |
| Gigahertz (GHz) | 1.0000 × 10^9 |
| Revolutions per minute (RPM) | 0.016666666667 |
| Beats per minute (BPM) | 0.016666666667 |
| Radian per second (rad/s) | 0.159154943092 |
When you need it
Anchors worth knowing: 1 Hz = 60 RPM, mains power is 50 or 60 Hz (3,000/3,600 RPM for synchronous motors), audible sound spans ~20 Hz–20 kHz, and Wi-Fi channels sit at 2.4 and 5 GHz.
Sources & methodology
Conversion factors follow BIPM SI Brochure; exact-by-definition factors are marked in the tool itself. All math runs client-side in your browser — nothing is uploaded.
More conversion guides
- How to convert degrees to radians (and gradians)
- How to convert Mbps to MB/s (bits vs bytes, decimal vs binary)
- How to convert square feet to square meters (and any area unit)
Or browse everything at once in the new unit & sizing converters roundup.