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Frequency
Hertz to RPM
Convert hertz (Hz) to RPM (RPM). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 Hz = 60 RPM
Hertz to RPM Conversion Table
Common values, ready to copy:
| hertz | RPM |
|---|---|
| 1 Hz | 60 RPM |
| 2 Hz | 120 RPM |
| 5 Hz | 300 RPM |
| 10 Hz | 600 RPM |
| 25 Hz | 1500 RPM |
| 50 Hz | 3000 RPM |
| 100 Hz | 6000 RPM |
| 1,000 Hz | 60000 RPM |
Formula
RPM = hertz × 60
Frequency uses the SI hertz (Hz, cycles per second). 1 kHz = 1,000 Hz; 1 MHz = 1 million Hz; 1 GHz = 1 billion Hz. RPM and BPM are both "cycles per minute": 60 RPM = 1 Hz.
About Hertz and RPM
Hertz (Hz): Cycles per second; named for Heinrich Hertz, who experimentally demonstrated electromagnetic waves in 1887. Common uses: Audio (Hz range for human hearing is 20-20,000 Hz), AC power frequency (50 or 60 Hz), and the SI base unit for any periodic phenomenon.
RPM (RPM): Revolutions per minute; a practical unit for rotating machinery, equal to 1/60 Hz when reinterpreted as cycles per second. Common uses: Engine speed (idle ≈ 600-800 RPM, redline 6,000-8,000 RPM in cars), hard drive speeds (5,400 or 7,200 RPM), kitchen mixers, and turntable speeds (33⅓ or 45 RPM).
How the conversion works
Frequency uses the SI hertz (Hz, cycles per second). 1 kHz = 1,000 Hz; 1 MHz = 1 million Hz; 1 GHz = 1 billion Hz. RPM and BPM are both "cycles per minute": 60 RPM = 1 Hz.
The exact relationship is RPM = hertz × 60, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between hertz and RPM comes up wherever frequency measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.