Reaction time test
When the area turns green, click as fast as you can. Five attempts, final average in milliseconds — but click before the green and you get a penalty!
| Average | Rough rating |
|---|---|
| under 200 ms | Lightning reflexes 🏎️ |
| 200–250 ms | Excellent, above average |
| 250–320 ms | Average |
| 320–420 ms | A bit slow — feeling tired? |
| over 420 ms | Try again rested and focused |
How fast is a "normal" reaction time?
For a visual stimulus the human average sits around 250 milliseconds: your brain has to notice the color change, decide, and fire the finger. Trained competitors (race drivers, tennis players, esports pros) get down toward 150-200 ms, while anything under 100 ms is almost certainly a lucky guess rather than a true reflex — which is exactly why this test penalizes clicks before the green. Keep in mind that your mouse and screen add 10 to 50 ms of latency, so always compare results taken on the same device.
What affects your reflexes (and how to sharpen them)
Sleep loss, fatigue, age, and distractions measurably slow you down; caffeine shaves off a little, while alcohol makes things much worse. The good news is that reaction to a specific stimulus is trainable: repeat the test across several days, under similar conditions, and you'll see your average drop and settle. Take the 5 attempts without rushing between them — the average is far more reliable than a single lucky hit.