Featured: ChessReaction Time Test
Wait for green, then tap as fast as you can. Get your reaction time in milliseconds and see how it compares with the 250 ms average.
How the reaction time test works
Wait on red
The panel turns red. Keep still, the wait is random every time.
Tap on green
The instant it turns green, tap, click or press Space.
See your time
Every tap is measured in milliseconds and rated.
Beat your best
Your average is your score. Tapping early counts as 500 ms.
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What is a good reaction time?
| Average time | Rating |
|---|---|
| Under 200 ms | ⚡ Lightning |
| 200 to 250 ms | 🔥 Fast |
| 250 to 300 ms | 👍 Average |
| 300 to 400 ms | 🙂 A bit slow |
| Over 400 ms | 🐢 Keep practicing |
The average human reaction time to a simple visual signal is about 250 milliseconds, a quarter of a second. Most adults land somewhere between 200 and 300 ms on a test like this one. Scores under 200 ms are very fast, and averages under 180 ms are rare even among competitive gamers and athletes.
Reaction time is usually quickest in your late teens and twenties and slows a little with age. Being tired, distracted or cold makes it slower, while a short warm up and good focus make it faster.
FAQ
What is a good reaction time?
For a simple visual test like this one, most adults average between 200 and 300 milliseconds, and around 250 ms is typical. Under 200 ms is very fast, and under 180 ms is rare.
What is the average human reaction time?
The average reaction time to a visual signal is about 250 milliseconds. Your result also depends on your device, screen and whether you use a mouse, touch screen or keyboard.
How can I improve my reaction time?
Get enough sleep, warm up with a few practice rounds, stay relaxed with your finger ready, and practice regularly. Reaction time usually improves with practice and focus and gets slower when you are tired.
What happens if I tap too early?
Tapping before the screen turns green is a false start. It counts as 500 ms for that tap, so guessing never pays off.
What if I do not tap at all?
If you do not tap within 2 seconds of green, that tap counts as 1000 ms and the test moves on, so nobody holds up a race.
Can I test my reaction time against friends?
Yes. Create a room, share the code and up to 6 players get exactly the same random waits. The lowest average reaction time wins.
Take a free reaction time test online
This reaction test measures simple visual reaction time: how long it takes you to see a change and respond to it. The panel turns red, waits for a random moment, then flashes green. The time between green appearing and your tap is your reaction time, shown in milliseconds. Taking several taps and averaging them gives a much fairer score than a single lucky or unlucky tap.
How to get your most accurate result
Use a wired mouse or the Space key on a computer for the steadiest results, or a single finger on a phone. Close other busy tabs, sit comfortably and keep your finger resting where you will tap. Screens and devices add a few milliseconds of delay of their own, so compare your scores on the same device over time.
Reaction time for gaming, sport and driving
Fast reactions matter in shooters, fighting games and rhythm games, and in sports like tennis, baseball and sprint starts. On the road, total braking reaction is much longer than a test like this because you also need to recognise the danger and move your foot. Practising with a reaction time test is a fun way to keep your reflexes sharp, and racing your friends makes it a quick party game too.