1. Convert to base units
Hz = input value x input unit factor
Every supported rotational frequency unit is stored as a factor relative to hertz.
Mechanical unit converter
Rotational Frequency Unit Converter
Convert rotational frequency units for motors, shafts, turbines, rotating equipment, vibration, and mechanical design calculations.
Live rotational frequency conversion
Convert rotational frequency units
Enter a value, choose the starting unit, and select a target unit. The full rotational frequency conversion table updates automatically.
Converted value
All units
Rotational Frequency conversion table
Compare the entered value across frequency, rpm, revolution, and angular-speed style units.
Common conversions
Useful rotational frequency conversion factors
| Conversion | Factor | Typical use |
|---|---|---|
| Hz to rpm | rpm = Hz x 60 | Motors and rotating machinery |
| rpm to Hz | Hz = rpm / 60 | Frequency and vibration |
| rps to rpm | rpm = rps x 60 | Shaft speed |
| rad/s to Hz | Hz = rad/s / 2 pi | Angular-speed data |
| deg/s to rpm | rpm = deg/s / 6 | Controls and motion systems |
| cpm to Hz | Hz = cpm / 60 | Cycle-rate conversion |
How it works
Rotational Frequency conversion method
2. Convert to target units
target value = base value / target unit factor
The selected result and table values are calculated from the same base value.
3. Check precision
rounding depends on scale
Very small and very large values use compact scientific notation to stay readable.
FAQ
Rotational Frequency converter questions
How do you convert Hz to rpm?
Multiply hertz by 60 to convert to revolutions per minute.
How do you convert rpm to Hz?
Divide rpm by 60 to convert to hertz.
Is Hz the same as rps?
For rotational frequency, 1 Hz is equivalent to 1 revolution per second.
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