Convert Revolutions per minute to Kilohertz
1 revolution per minute is 0.00001667 kHz. One revolution per minute is exactly 0.0000166666666667 kilohertz.
One revolution per minute is 1.6667 × 10^-5 kilohertz. To convert revolutions per minute to kilohertz, multiply by 1.6667 × 10^-5; to go the other way, divide by 1.6667 × 10^-5 or multiply by 60000. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Special Publication 811. One turn a minute, so 60 rpm is 1 Hz.
Factor checked against the defining standard · How we check
- Revolutions per minute × 1.6667 × 10^-5
1 * 0.00001670 kHz
1 revolution per minute in every frequency unit
| Unit | Value | Exact factor |
|---|---|---|
| hertz | 0.01666666667 Hz | × 0.0166666666667 |
| kilohertz | 0.00001666666667 kHz | × 0.0000166666666667 |
| megahertz | 0.00000001666666667 MHz | × 0.0000000166666666667 |
| gigahertz | 0.00000000001666666667 GHz | × 0.0000000000166666666667 |
| terahertz | 0 THz | × 0.0000000000000166666666667 |
| revolutions per minute (as entered) | 1 rpm | — |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert revolutions per minute to kilohertz? The converter and the working
- 1.Take the measurement in revolutions per minute.
- 2.Multiply by 1.6667 × 10^-5 — that is how many kilohertz fit in one revolution per minute.
- 3.To go back the other way, divide by 1.6667 × 10^-5, or multiply by 60000.
Worked example: 25 revolutions per minute to kilohertz
- Formula
- rpm × 1.6667 × 10^-5 = kHz
- Arithmetic
- 25 × 1.6667 × 10^-5 = 0.0004167 kHz
- Answer
- 25 rpm = 0.0004167 kHz
The factor is rounded for display; the figure above is computed from the full value.
Revolutions per minute to kilohertz conversion table
| Revolutions per minute | Kilohertz |
|---|---|
| 1 rpm | 0.00001667 kHz |
| 2 rpm | 0.00003333 kHz |
| 3 rpm | 0.00005 kHz |
| 4 rpm | 0.00006667 kHz |
| 5 rpm | 0.00008333 kHz |
| 6 rpm | 0.0001 kHz |
| 7 rpm | 0.0001167 kHz |
| 8 rpm | 0.0001333 kHz |
| 9 rpm | 0.00015 kHz |
| 10 rpm | 0.0001667 kHz |
| 12 rpm | 0.0002 kHz |
| 15 rpm | 0.00025 kHz |
| 20 rpm | 0.0003333 kHz |
| 25 rpm | 0.0004167 kHz |
| 50 rpm | 0.0008333 kHz |
| 100 rpm | 0.001667 kHz |
| 200 rpm | 0.003333 kHz |
| 300 rpm | 0.01 kHz |
| 500 rpm | 0.01 kHz |
| 1000 rpm | 0.02 kHz |
| 2000 rpm | 0.03 kHz |
| 5000 rpm | 0.08 kHz |
| 10000 rpm | 0.17 kHz |
What is a revolution per minute?
One turn a minute, so 60 rpm is 1 Hz. Engines, drills and hard drives are all rated in it: a 7,200 rpm drive spins at 120 Hz.
What is a kilohertz?
A thousand hertz. AM radio is broadcast here — 540 to 1600 kHz — and audio sampling is quoted in it: a CD samples at 44.1 kHz.
How many kilohertz are in a revolution per minute?
One revolution per minute is 1.6667 × 10^-5 kilohertz. Going the other way, one kilohertz is 60000 revolutions per minute. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every frequency unit here
The whole group — 6 units with their symbols and the size of each one in hertzs — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a revolution per minute.
Source: NIST Special Publication 811 — the hertz, and SI prefixes
Cite this page
- APA
- Rule Calculator. (2026). Convert Revolutions per minute to kilohertz. Rule Calculator. https://rulecalculators.com/convert/rpm-to-kilohertz
- MLA
- "Convert Revolutions per minute to kilohertz." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/rpm-to-kilohertz.
- Chicago
- Rule Calculator. "Convert Revolutions per minute to kilohertz." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/rpm-to-kilohertz.
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Questions people actually ask
- How many kilohertz are in a revolution per minute?
- 1.6667 × 10^-5. A thousand hertz. AM radio is broadcast here — 540 to 1600 kHz — and audio sampling is quoted in it: a CD samples at 44.1 kHz.
- How do I convert kilohertz back to revolutions per minute?
- Divide by 1.6667 × 10^-5, or multiply by 60000 — they are the same operation.
Other frequency conversions
Kilohertz to revolutions per minute — the same conversion the other way.