Reaction Time Test
Click the moment it turns green — measure your ms
Round
1/5
Best
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Average
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How fast are your reflexes
Click as fast as you can when the screen flips from red to green and your reaction time is measured in milliseconds. Get an average over five rounds, your best score, and a fun rating. The average human visual reaction time is about 250 ms — see if you can beat it. Everything runs in your browser and nothing is stored.
Measures the time from green to your click with millisecond precision.
Five rounds give you an average and best score for a fair result.
Get a fun rating from lightning reflexes to laid-back.
Frequently asked questions
The average human reaction time to a visual stimulus is around 250 ms. Under 200 ms is very fast, and pro gamers can reach the 150 ms range.
Yes, to a degree — good sleep, regular exercise, and practice help. Fatigue can noticeably slow your results.
Monitor refresh rate and input latency can add tens of milliseconds. Comparing repeated runs on the same device is the most reliable approach.