Frequency Calculator

Your details

Use a period for one cycle, wave speed and wavelength for a travelling wave, or RPM for something that spins.
The time taken to complete one full cycle, in seconds.
s
Frequency
50Hz
Frequency (scaled unit)50 Hz
Period (T = 1/f)0.02s
Angular frequency (ω = 2πf)314.1593rad/s
Equivalent speed3,000RPM
50 Hz
Infrasonic<20Low / bass20-250Mid (speech)250-4000High / treble4000+

The frequency is 50 Hz (50 Hz).

  • Frequency is the reciprocal of the period: f = 1 ÷ T, so a shorter period means a higher frequency.
  • 50 Hz is the same as 50 Hz, about 50 complete cycles every second.
  • The matching period is 0.02 s and the angular frequency is 314.16 rad/s.
  • This frequency falls within the range of human hearing (about 20 Hz to 20 kHz).

Next stepTake the reciprocal (1 ÷ f) at any time to convert back to the period in seconds.

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