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Duty Cycle Calculator

Find the duty cycle of a signal.

Parameters Live Compute
Calculated Output
Duty cycle (%) 20
Formula: duty cycle = on time ÷ period × 100
Step-by-Step Breakdown
1. Values used:
2. On time = 2
3. Period = 10
4.
5. Duty cycle = On time x Period = 2 x 10 = 20%
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Duty cycle is the fraction of one period a signal is active.

The math behind it

duty cycle = on time ÷ total period × 100.

Worked Example

2 ms on, 10 ms period → 20%.

Frequently Asked Questions

PWM?

Pulse-width modulation varies duty cycle to control power (e.g. LED brightness, motors).

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