Authoritative definitions of the International System of Units and SI prefixes.
Unit conversion
Revolutions per minute to Hertz Converter
1 rpm ≈ 0.0166666666667 Hz. Enter a value to convert rpm to Hz, then use the formula and table below. Displayed digits may be rounded.
FrequencyInstant result
Decimals
Formula result = input × 0.016666666666666666 ÷ 1. 1 rpm ≈ 0.0167 Hz
Nonzero results too small for the selected decimal places use scientific notation.
Nonzero results too small for the selected decimal places use scientific notation.
Common examples
One value, several units
Hertz0.0167 Hz
Kilohertz1.66667e-5 kHz
Megahertz1.66667e-8 MHz
Gigahertz1.66667e-11 GHz
Conversion table
| rpm | Hz |
|---|---|
| 1 rpm | 0.0167 Hz |
| 2 rpm | 0.0333 Hz |
| 5 rpm | 0.0833 Hz |
| 10 rpm | 0.1667 Hz |
| 25 rpm | 0.4167 Hz |
| 50 rpm | 0.8333 Hz |
| 100 rpm | 1.6667 Hz |
Conversion chart
1 rpm0.0167 Hz
5 rpm0.0833 Hz
10 rpm0.1667 Hz
25 rpm0.4167 Hz
50 rpm0.8333 Hz
Worked example
1 rpm ≈ 0.0166666666667 Hz. Apply the selected conversion formula to other input values.
Unit definition
Revolutions per minute (rpm) One revolutions per minute equals 0.0166666666667 hertz.
Unit history
Revolutions per minute is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.
Step by step
1. Parse the value, including fractions.
2. Convert rpm to hertz.
3. Convert the base value to Hz and apply your display precision.
Understand the result before using it
Revolutions per minute to Hertz converts a value measured in Revolutions per minute (rpm) into the equivalent value in Hertz (Hz). The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.
Calculated result
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.
Formula, assumptions, and example
Formula
result = input × 0.016666666666666666 ÷ 1
Assumptions
- Revolutions per minute and Hertz represent the same frequency quantity.
- The input is expressed in rpm; the output is expressed in Hz.
- The unit definitions and conventional relationship shown on this page apply.
Worked example
1 rpm ≈ 0.0166666666667 Hz. For another value, apply the same relationship and round only to the precision your source measurement supports.
When to use it
Good uses
- Read a rpm measurement in a document that expects Hz.
- Compare a revolutions per minute value with a value reported in hertz.
- Check the rpm to Hz arithmetic before copying the result into another calculation.
Limitations
Common mistakes to avoid
- Do not confuse rpm with another unit that has a similar name or symbol.
- Round the output to a precision justified by the original measurement.
- Verify safety-critical, regulated, laboratory, and contractual conversions against the controlling standard.
Sources and further reading
These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.
Guidance on unit names, symbols, conversions, and numerical presentation.
Questions about this calculation
How do I convert Revolutions per minute to Hertz?
result = input × 0.016666666666666666 ÷ 1. Input is in rpm; result is in Hz. 1 rpm ≈ 0.0166666666667 Hz. The displayed digits may be rounded.
What is 1 rpm in Hz?
1 rpm ≈ 0.0166666666667 Hz. The displayed digits may be rounded.
Can I reverse the rpm to Hz conversion?
Yes. Swap the source and target units in the converter. The reverse relationship converts Hz back to rpm.
Is the Revolutions per minute to Hertz result exact?
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.