Morse Code WPM & Duration Calculator

Count signal and spacing units, then convert them into milliseconds and seconds using standard Morse timing ratios.

Morse codeWPM

—Total seconds

—Total units

—Signal units

—Gap units

Runs locally in your browser. International Morse timing follows the ITU 1-dot / 3-dot / 7-dot spacing relationships. WPM timing uses the conventional PARIS reference (dot = 1200/WPM ms).

How to use this Morse Code WPM & Duration Calculator

Estimate exact keyed-signal duration for a Morse message at a chosen WPM. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.