# Reaction Time Test

Source: https://decka.dev/tools/reaction-time-test

Test your reaction time by catching a ruler that falls on screen, then read your time where you caught it. Free, no signup, and the same physics as a real ruler drop.

Catch a falling ruler and read your reaction time where you caught it

Open the [interactive tool](https://decka.dev/tools/reaction-time-test) to enter your inputs and use the results.

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