Duty Cycle Calculator

Your details

Choose which pair of values you already know.
The duration the signal is HIGH in each cycle.
The total duration of one full cycle (on + off).
Duty cycleLow duty cycle
20%

Fraction of each period the signal is HIGH, expressed as a percentage.

Duty factor0.2
Off-time8.000 ms
Frequency100.000000 Hz
20 %
Very low<10Low10-50Moderate50-75High75-90Near-continuous90+

Duty cycle: 20.00%

  • The signal is HIGH for 20.0% of each cycle, leaving 80.0% as rest time. This is well within safe continuous-operation limits for most components.
  • The duty factor (dimensionless ratio) is 0.2000. Multiply any peak power value by this number to get the average (time-averaged) power.

Next stepCheck the component data sheet for its maximum rated duty cycle and compare it against this result before running continuously.

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