Reaction Time Test
Wait for the screen to turn green, then tap as fast as you can. Five tries, one average.
How this test works
The screen is red while you wait. After a random delay of 1.5 to 4 seconds it turns green. The timer starts at that moment and stops when you tap or press a key. If you tap too early the attempt is cancelled and restarts, so guessing doesn't help. Your result is the average of five valid attempts.
What is a good reaction time?
Our labels are rough bands we chose for fun, not scientific norms or percentiles of other players:
| Average | Label |
|---|---|
| Under 180 ms | Lightning |
| 180–229 ms | Fast |
| 230–299 ms | Typical |
| 300–399 ms | Relaxed |
| 400 ms or more | Take a breath |
Your number includes the delay of your screen, your device's touch or mouse input, and the browser, which can add tens of milliseconds. A phone touchscreen often measures slower than a wired mouse on a fast monitor. Compare yourself to yourself on the same device rather than to other people.
Tips to improve
Rest your finger on the button, focus on the centre of the screen rather than your hand, and avoid anticipating. Fatigue, caffeine, sleep and practice all shift results by small amounts. Averages over several attempts are far more meaningful than a single try.
More: Click speed test · Sequence memory test