Duty Cycle Calculator

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Calculates the percentage of time a signal or system is active within a given period.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Pulse Width (Time High) and Period (Total Time) in the units shown.

Step 2

Read Duty Cycle Ratio and Duty Cycle in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Pulse Width (Time High): 1 seconds; Period (Total Time): 2 seconds

Duty Cycle Ratio: 0.5; Duty Cycle: 50 %

Pulse Width (Time High): 1 seconds; Period (Total Time): 4 seconds

Duty Cycle Ratio: 0.25; Duty Cycle: 25 %

Pulse Width (Time High): 3 seconds; Period (Total Time): 4 seconds

Duty Cycle Ratio: 0.75; Duty Cycle: 75 %

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