Convert RPM to Kilohertz (rpm to kHz)
1 revolution per minute (rpm) = 0.00001666666667 kilohertz (kHz). 1 kHz = 60000 rpm. Example: 15 rpm = 15 × 0.00001666666667 = 0.00025 kHz.
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1 rpm = 0.00001666666667 kHz
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk revolution per minute to kilohertz converter to paste a column from Excel.
How to Convert RPM to Kilohertz
- 1 rpm = 0.00001666666667 kHz
- 1 kHz = 60000 rpm
- Example: convert 15 rpm to kHz: 15 rpm = 15 × 0.00001666666667 kHz = 0.00025 kHz
Formula
kHz = rpm × 0.00001666666666667
or kHz = rpm ÷ 60000
Derivation from SI units:
- 1 rpm = 1/60 revolution per second = 1/60 Hz.
- 1 kHz = 10³ Hz.
- 1 rpm = 0.01666666666667 Hz ÷ 1000 Hz per kHz = 0.00001666666666667 kHz
Both units are defined exactly, so the factor is exact. RPM definition: revolution per minute; Kilohertz definition: kilohertz.
Worked examples
- A reading of 750 rpm converts to 0.0125 kHz.
750 rpm × 0.00001666666667 = 0.0125 kHz - A value of 1500 rpm is 0.025 kHz.
1500 rpm × 0.00001666666667 = 0.025 kHz
RPM to Kilohertz conversion table
| RPM | Kilohertz (kHz) |
|---|---|
| 60 rpm | 0.001 kHz |
| 100 rpm | 0.001666666667 kHz |
| 600 rpm | 0.01 kHz |
| 750 rpm | 0.0125 kHz |
| 1000 rpm | 0.01666666667 kHz |
| 1450 rpm | 0.02416666667 kHz |
| 1500 rpm | 0.025 kHz |
| 3000 rpm | 0.05 kHz |
| 3600 rpm | 0.06 kHz |
| 7200 rpm | 0.12 kHz |
Where it's used
RPM are used for engine and motor speeds, while kilohertz appear in audio sample rates. Both measure frequency and rotational speed, so the conversion is a fixed factor.
RPM to other frequency units
| Conversion | 1 rpm equals |
|---|---|
| revolution per minute to kilohertz | 0.00001666666667 kHz |
| revolution per minute to hertz | 0.01666666667 Hz |
| revolution per minute to megahertz | 1.666666667 × 10⁻⁸ MHz |
| revolution per minute to gigahertz | 1.666666667 × 10⁻¹¹ GHz |
| revolution per minute to radian per second | 0.1047197551 rad/s |
| revolution per minute to revolution per second | 0.01666666667 rps |
| revolution per minute to degree per second | 6 °/s |
| revolution per minute to beat per minute | 1 bpm |
Show 1 more units
| revolution per minute to terahertz | 1.666666667 × 10⁻¹⁴ THz |
|---|
Frequently asked questions
How many kilohertz are in 1 revolution per minute?
1 rpm = 0.00001666666667 kHz.
How do I convert revolutions per minute to kilohertz?
Multiply the value in rpm by 0.00001666666667, or divide it by 60000. For example, 15 rpm × 0.00001666666667 = 0.00025 kHz.
Is the rpm to kHz conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert RPM to Kilohertz (rpm to kHz). Retrieved October 25, 2026, from https://scientificconverters.com/frequency/rpm-to-kilohertz/
IEEE
Scientific Converters, "Convert RPM to Kilohertz (rpm to kHz)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/frequency/rpm-to-kilohertz/