How to convert hertz to milliseconds

Written by david medairos
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How to convert hertz to milliseconds
Convert a unit of frequency to a unit of time. (Sound image by Alexander Sabilin from

Hertz is a measurement of frequency in that it describes how many times something happens (known as a cycle) every second. Often used to describe the frequency of sound or electricity, hertz can describe any repetitive action. One millisecond is a standard measurement of time and represents 1/1000 of one second. Both hertz (Hz) and milliseconds (msecs) are time or "period" measurements, and converting Hz to msecs can be accomplished with a basic formula.

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Things you need

  • Calculator
  • Hertz value

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  1. 1

    Use the formula 1/Hz * 1000, where Hz represents cycles per second. For this example, convert 500 Hz to milliseconds.

  2. 2

    Divide the Hz value into one. Enter 1 ÷ 500. This will result in a value of 0.002. This value represents seconds.

  3. 3

    Multiply the seconds value by 1000 to derive the milliseconds value. For this example, enter 0.002 x 1000. This results in a value of 2 milliseconds. Record your results.

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