Reaction Time Test
Click as soon as the screen turns green and see how fast your reflexes are.
Average human reaction time is around 200–250 ms. Clicking before the screen turns green counts as a false start.
Wait for the screen to turn green, then click as fast as you can — the tool measures your reaction time in milliseconds and tracks your results across attempts, so you can see how you compare to typical human reaction speeds.
A random delay before the colour change prevents you from just timing a fixed interval, so the result actually measures reflexes rather than rhythm.
Frequently asked questions
- What's a good average human reaction time?
- Typical visual reaction time for adults is roughly 200–250 milliseconds; competitive gamers and athletes in reflex-heavy sports often land somewhat faster with practice.
- Why is the delay before the colour change random?
- A fixed delay would let you anticipate exactly when to click based on rhythm rather than actually reacting to the visual change, which would measure timing prediction instead of reflex speed.
- Does clicking too early count as a valid attempt?
- No — clicking before the screen actually turns green is flagged as a false start rather than recorded as a real reaction time.