RPM Converter
Enter a rotational speed and choose the source and target units. Hertz here means revolutions per second.
A QUICK WALKTHROUGH
How to use this tool
- Enter a finite rotational speed.
- Choose the input and output units.
- Read the selected conversion and the complete conversion table.
Exact relationships
1 RPM = 2π/60 rad/s, and 1 Hz = 60 RPM. The converter uses these exact relationships.
Scope
Hz means revolutions per second here. This is not an electrical mains-frequency converter and does not account for gearbox ratios, sensor calibration, radius, or surface speed.
Input limits
Use a finite value between −1,000,000,000 and 1,000,000,000 in the selected unit.
GOOD TO KNOW
Common questions
What does Hz mean here?
Hz means revolutions per second, so 1 Hz equals 60 RPM.
Does this calculate surface speed?
No. Radius is not part of rotational-speed conversion, so surface speed is outside this tool.
Is this electrical frequency?
No. The Hz option represents mechanical revolutions per second, not electrical mains frequency.