Reaction time test
Wait for the screen to turn green, then click or press Space as fast as you can.

Your rounds
- Round 1-
- Round 2-
- Round 3-
- Round 4-
- Round 5-
Average so far
-
No best average yet.
Click, tap, or press Space or Enter. Results depend on your screen and input device. Your best average is saved on this device.
How to use it
- Click the panel to start and wait while it is orange.
- When it turns green, click or press Space or Enter right away.
- After five rounds you see your average and every round.
Questions
Why five rounds instead of one?
A single click is mostly luck. Averaging five rounds, and showing each one, gives a steadier picture of your reaction time.
What if I click before it turns green?
That round is cancelled with a Too soon message, and you click again to retry it. Early clicks can never count as fast times.
Does my screen or device change the result?
Yes. Screen refresh rate, touch delay and your mouse or keyboard all add a few milliseconds, so compare results from the same device.
Is my best average saved?
Your lowest five round average is kept in this browser on this device only. Nothing is sent, and clearing site data removes it.
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