Key Hold Duration Test

Press and release keys to see latest, average, shortest, and longest hold durations in milliseconds.

Press and release a key

—Latest hold ms

—Average ms

—Shortest ms

—Longest ms

How to use this Key Hold Duration Test

Measure how long a key remains held between browser keydown and keyup events. 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.