Convert Frequency and Number per Time

Frequency is measured in hertz, one hertz means once per second. Here you can convert any number in any time into the frequency or calculate one of the other two values from the frequency. Finally, you have the option of specifying only one frequency, then the number is set as 1 and the duration is calculated for one time. The units can be freely selected for frequency and time.


Examples: a heart beats 75 times in one minute. It then has a frequency of 1.25 Hertz.

Alternating current has a frequency of 50 Hertz. So it changes its polarity 2000 times in 40 seconds.

Hz = hertz, kHz = kilohertz, MHz = megahertz, s = seconds, min = minutes, h = hours
1 Hz = 1/s = 60/min = 3600/h
1kHz = 1000 Hz, 1 MHz = 1000 kHz = 1000000 Hz

Physics commonly uses SI units. Here is a calculator to convert units.