RPM to Hertz Converter
Quick answer: To convert RPM to hertz, multiply by 0.01666667. For example, 10 rpm is 0.1666667 Hz. One revolution per minute equals 0.01666667 Hz.
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Use the RPM to Hertz Converter
RPM to Hertz formula and what each symbol means
Hz = rpm × 0.01666667
| Symbol | Meaning |
|---|---|
| rpm | Revolution per minute |
| Hz | Hertz |
RPM to Hertz examples
1 rpm
1 rpm × 0.01666667 = 0.01666667 Hz.
10 rpm
10 rpm × 0.01666667 = 0.1666667 Hz.
100 rpm
100 rpm × 0.01666667 = 1.666667 Hz.
RPM compared with Hertz
One Hz is 60 times as large as one rpm, so your number gets smaller when you convert RPM to hertz and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
About RPM and hertz
Revolution per minute (rpm): Revolutions per minute, 1/60 Hz. Hertz (Hz): The SI unit of frequency, one cycle per second.
Where RPM to hertz conversions are used
Radio, Wi-Fi and processors are described in MHz and GHz. Engines, motors and turbines are rated in revolutions per minute (rpm).
How to calculate RPM to Hertz step by step
- Enter the value in rpm (the starting unit).
- Multiply by 0.01666667, because 1 rpm = 0.01666667 Hz.
- The product is the value in Hz. To go back, divide by 0.01666667 or multiply by 60.
Popular frequency conversions
How to read your RPM to Hertz result
Quick estimate: multiply by about 0.0167 to get hertz from RPM; this is within 0.2% of the exact factor. One hertz is one cycle per second.
| RPM | HERTZ |
|---|---|
| 1 | 0.01666667 |
| 2 | 0.03333333 |
| 5 | 0.08333333 |
| 10 | 0.1666667 |
| 20 | 0.3333333 |
| 50 | 0.8333333 |
| 100 | 1.666667 |
| 1,000 | 16.66667 |
Hertz to RPM: quick table
| HERTZ | RPM |
|---|---|
| 1 | 60 |
| 5 | 300 |
| 10 | 600 |
| 25 | 1,500 |
| 50 | 3,000 |
| 100 | 6,000 |
| 250 | 15,000 |
| 500 | 30,000 |
Common mistakes when calculating RPM to Hertz
- Confusing hertz (cycles per second) with radians per second: ω = 2πf.
- Dividing when you should multiply: from rpm to Hz multiply by 0.01666667; from Hz to rpm divide by 0.01666667.
RPM to Hertz FAQ
How many Hz are in 1 rpm?
1 rpm equals 0.01666667 Hz.
How many rpm are in 1 Hz?
1 Hz equals 60 rpm.
Is 1 rpm = 0.01666667 Hz an exact conversion?
The factor is shown rounded to 7 significant figures (0.01666667). The calculator above uses more digits.
What is a revolution per minute (rpm)?
Revolutions per minute, 1/60 Hz.
How can I estimate RPM to hertz in my head?
Quick estimate: multiply by about 0.0167 to get hertz from RPM; this is within 0.2% of the exact factor.
What is 40 rpm in hertz?
40 rpm = 0.6666667 Hz (since 40 × 0.01666667).
What is 200 rpm in hertz?
200 rpm = 3.333333 Hz (since 200 × 0.01666667).
What is 3 rpm in hertz?
3 rpm = 0.05 Hz (since 3 × 0.01666667).
How many decimals should I keep when converting rpm to Hz?
Match the precision of your original measurement. For example, 0.1666667 Hz rounds to 0.167 Hz at 3 significant figures; keep more digits only for engineering or scientific work.
More in Frequency converters
- MHz to kHz Converter
- GHz to Hertz Converter
- MHz to Hertz Converter
- GHz to kHz Converter
- MHz to GHz Converter
- GHz to MHz Converter
See all frequency converters tools · All Conversion calculators · Site map
Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: BIPM: the SI derived units