Convert hertz to revolutions per minute and RPM to hertz instantly. Bidirectional frequency converter with formula and common values.
To convert hertz to revolutions per minute, multiply by 60. One hertz means one cycle per second, and there are 60 seconds in a minute, so 1 Hz = 60 RPM.
| Hertz | RPM |
|---|---|
| 16.67 | 1000.20 |
| 25 | 1500.00 |
| 30 | 1800.00 |
| 50 | 3000.00 |
| 60 | 3600.00 |
| 100 | 6000.00 |
| 200 | 12000.00 |
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One hertz equals exactly 60 RPM. Since hertz measures cycles per second and RPM measures revolutions per minute, you multiply by 60 (seconds in a minute).
Multiply the frequency in hertz by 60. For example, 25 Hz × 60 = 1,500 RPM.
This conversion is common in mechanical engineering for motors, turbines, and rotating machinery. Electric motor speeds driven by variable frequency drives are often specified in Hz but displayed in RPM.
A 2-pole motor on a 50 Hz supply has a synchronous speed of 3,000 RPM (50 × 60). Actual speed is slightly lower due to slip, typically around 2,850-2,950 RPM.