Reaction Time Test
Test your reaction time — click as soon as the screen turns green. See your average over 5 tries and how you compare with typical human reaction times.
For general information only — not medical advice. Results are estimates; talk to a doctor or qualified health professional about your own health.
How to use
- 1Click the box to start and wait for it to turn green.
- 2Click as fast as you can. Do 5 rounds for an average.
Frequently asked questions
What is a good reaction time?
The average visual reaction time is about 250 ms. Under 200 ms is very fast; gamers and athletes often score 150–200 ms.
Does my screen affect the result?
Yes — monitor refresh rate, input lag and the mouse add a few to tens of milliseconds.
Can I improve my reaction time?
Sleep, practice, caffeine and being warmed up help. Fatigue and alcohol slow it down.