Reaction time is the delay between a stimulus and your response — a mix of how fast your eyes see, your brain decides and your hand moves. Athletes, gamers and drivers all rely on it, and it is one of the few mental skills you can measure in under a minute.
This test uses the classic "go / no-go" method: the panel turns green at a random moment, and you tap as soon as you see it. Five rounds give you a reliable average, and your best time shows what your reflexes can do at full focus.
What is a good average? Most adults land between 200 and 300 ms. Under 200 ms is fast, and pro gamers often sit around 150–180 ms.
Does device latency affect the result? Yes, slightly. Use a wired mouse or touch for the most consistent numbers, and avoid background apps.
Can I improve my reaction time? Regular practice, sleep and reduced distractions help. Repeating this test a few times warms up your reflexes.
Test your reaction time with the classic go/no-go method. Wait for the panel to turn green, then tap as fast as you can. Five rounds give you your last, best and average time in milliseconds. Free, private and instant, all in your browser.