Reaction time test
Check how fast you react, in milliseconds.
How to use: reaction time test
Wait for the screen to turn from red to green and click as fast as you can. The test measures your reaction time in milliseconds, averages your last attempts and saves your best score in your browser. The average human reaction time is around 250 milliseconds.
What is a good reaction time?
The average visual reaction time is around 250 ms. Under 200 ms is very good and under 150 ms is exceptional.
Why do I get a different time each attempt?
Attention, tiredness and the latency of your screen and mouse or touchscreen all play a part, so it is best to look at the average.