SIMITRO / ENGINEERING UTILITIES

PWM frequency & duty calculator

Move between frequency, period, duty cycle, and high/low time. Check the timing before configuring a PWM channel.

Keep your usual setup ready.Save inputs on this browser. CSV files are not saved.

Your result

ON YOUR DEVICE

Enter your inputs and calculate to see the result.

Check your channel timing.

Example: 100 Hz at 30% duty gives a 10 ms period, 3 ms high time, and 7 ms low time. A duty of 0% is continuously low; 100% is continuously high. The displayed frequency is the configured reference at those limits.

period = 1 / frequency
high time = period × duty / 100
low time = period − high time