Frequency
rpmtoHz
Convert revolutions per minute (rpm) to hertz (Hz).
Factor1 rpm = 0.01666667 Hz
Converter
rpm
Accepts numbers or expressions, e.g. 150 + 14.7
Result
Hz
Rendered to 6 significant figures.
Formula
Formula
Hz = rpm × 0.01666667
Multiply any value in revolutions per minute by 0.01666667 to obtain the value in hertz.
Worked example
Convert 1800 rpm to Hz.
- 01Start with 1800 rpm.
- 02Multiply by the conversion factor: 1800 × 0.01666667 = 30 Hz.
Result1800 rpm = 30 Hz
Conversion table
| rpm | Hz |
|---|---|
| 1 | 0.016667 |
| 2 | 0.033333 |
| 5 | 0.083333 |
| 10 | 0.16667 |
| 20 | 0.33333 |
| 50 | 0.83333 |
| 100 | 1.6667 |
| 200 | 3.3333 |
| 500 | 8.3333 |
| 1000 | 16.667 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from rpm to Hz?
1 rpm equals 0.01666667 Hz. To convert, multiply the value in revolutions per minute by 0.01666667.
How do I convert 1 rpm to Hz?
1 rpm = 0.0166667 Hz. For any value, multiply by 0.01666667.
How do I convert Hz back to rpm?
Divide by the same factor — or equivalently, multiply by 60. So 1 Hz = 60 rpm.
When would I need to convert revolution per minute to hertz?
Frequency conversions between rpm and Hz are needed in signal and RF engineering, motor and turbomachinery rotational-speed work, vibration and pulse-rate analysis, and control-loop sample-rate specification. Hz dominates electronics and instrumentation; kHz, MHz and GHz cover audio through microwave; rpm and rps dominate mechanical rotational equipment; cycles per minute, second and hour cover slow industrial cyclic processes. Angular frequency (rad/s) and time-period (Hz ↔ seconds) conversions are NOT included — they require either a 2π factor or a reciprocal relationship.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).