Reflex
Reaction Time Test
Click as soon as the box turns green. Average of 5 rounds.
- Round 1–
- Round 2–
- Round 3–
- Round 4–
- Round 5–
Global Leaderboard
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About the reaction time test
This test measures how quickly you respond to something you see. The box starts red. After a wait of random length it turns green, and you click as fast as you can. The wait is random on purpose, so you cannot learn the rhythm and click early.
If you click while the box is still red, the round counts as too soon and you start it again. Your result is the average of five rounds, in milliseconds, which smooths out one lucky or unlucky round. Most people land somewhere between about 200 and 300 ms.
Your result includes more than your nerves and muscles. The screen, the mouse and the browser each add a little delay, so compare scores only between runs on the same device.
How to improve
- Rest your finger on the button and look at the middle of the box instead of its edges.
- Do not try to guess the moment. Guessing gives too-soon rounds and a worse average.
- Play when you are rested. Tiredness shows up in this test more than in almost any other.
- Use a wired mouse and a screen with a high refresh rate if you can.