Frequency Converter
Instantly convert Frequency between SI and common engineering units including Hertz (Hz), kHz, MHz, rpm. No formula lookup required.
Convert
About
Value × conversion factor to SI base (temperature uses affine offset), then restored to target unit.
Bidirectional conversion with unit swap supported.
How to use
- Enter the value to convert in the Value box.
- Pick the source and target units from the From / To dropdowns.
- Click Convert; the result shows below. Use ⇅ to swap units.
Formula notesUnit conversion (frequency): 频率:1 Hz = 1/s,1 r/min = 1/60 Hz。