Reaction Time Test
How fast are your reflexes? Click the moment it turns green.
What is a reaction time test?
A reaction time test measures how quickly you respond to a visual cue. The screen turns from red to green at a random moment, and the timer records the gap between the green appearing and your click — in milliseconds. Taking the average of five tries smooths out luck and gives you a number that reflects your real reflexes.
What's a good reaction time?
Most people land around 250ms. Break 220ms and you're faster than the average gamer; sub-180ms is elite reflex territory. Simple visual reaction like this is faster than choice reactions (where you have to decide between options), so these numbers run lower than real-world driving-style reactions.
How to improve your reaction time
Warm up first — your first attempt is almost always your slowest. Stay relaxed but focused, watch the whole screen rather than staring at one spot, and rest your finger lightly, ready to click. Sleep, caffeine, and not being fatigued all measurably help. Then test your clicking speed on the click speed test.
Frequently asked questions
What is a good reaction time?
The average human visual reaction time is around 250ms. Anything under 250ms is quicker than most people, gamers often sit around 200–220ms, and elite reflexes dip below 180ms.
How is reaction time measured?
The clock starts the instant the screen turns green and stops when you click, measured with a high-resolution timer (performance.now) for millisecond accuracy. Your score is the average of 5 attempts.
Why did I get 'Too soon'?
You clicked while the screen was still red, before it turned green. That attempt doesn't count — wait for green, then click. It's a test of reaction, not anticipation.
Does my screen or mouse affect my reaction time?
A little. A high-refresh-rate monitor and a low-latency mouse shave a few milliseconds off, and wired beats wireless marginally. But your reflexes are by far the biggest factor.