Reaction Time Test
Click the moment the color changes and see your reaction time in milliseconds. Share your best score.
Average human reaction is around 250 ms. Take 5 tries for a reliable result.
Free Online Reaction Time Test - How Fast Are Your Reflexes?
Our Reaction Time Test measures how quickly you can respond to a visual signal. Wait for the screen to turn green, then click or tap as fast as you can — the time between the color change and your click is your reaction time in milliseconds. Take part in five measured rounds to get the most reliable result, with your fastest, slowest, and average times shown clearly. Most people score somewhere between 200 and 300 milliseconds, but with practice you can genuinely improve. Athletes, gamers, and busy professionals all use reaction time tests to gauge their focus and reflexes. Because it uses an unpredictable delay before changing color, you can't cheat the test by anticipating the click — you have to genuinely react. It runs entirely in your browser with no downloads and no account. Compare your score against the average, track improvements over time, and use the share button to show your friends how quick your reflexes really are. Fun, fast, and completely free.