Calculate frequency from period, or period from frequency.
Wave Parameters
Calculation Results
Frequency50.0000Hz
Period0.020000s
Angular Freq (ω)314.16rad/s
RPM3000rev/min
About this calculator
Quick Reference
fFrequency (Hz)
TPeriod (s)
ω2πf (Angular frequency)
1 kHz1,000 Hz
1 MHz1,000,000 Hz
Overview
Frequency is the number of occurrences of a repeating event per unit of time. It is the reciprocal of the period (the time it takes for one complete cycle).
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Pro Tips
The SI unit of frequency is the Hertz (Hz), which equals one cycle per second.
Period and frequency are inversely related: f = 1/T and T = 1/f.
Angular frequency (ω) is related to frequency by ω = 2πf.
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Fun Facts
"The human ear can typically hear frequencies between 20 Hz and 20,000 Hz."
"Radio waves can have frequencies from a few Hz up to hundreds of GHz."
"The 'A' above middle C on a piano is traditionally tuned to 440 Hz."
