Reaction Time Test
Click (or tap) the moment the box turns green. 5 rounds, average score.
A simple test of pure reaction speed - click as soon as the screen turns green, and see your reaction time measured in milliseconds. A quick way to check how fast your reflexes are and try to improve them with practice.
Frequently asked questions
Average human reaction time to a visual stimulus is typically in the range of 200-300 milliseconds - times significantly faster than that put you well above average, though results can vary based on focus, screen refresh rate, and input device.
Reaction time naturally varies due to attention/focus level, fatigue, and even subtle differences in your device's display and input responsiveness - running multiple attempts gives a more representative picture than a single result.
Typically yes - clicking before the screen actually turns green usually registers as a false start/fail, since the test is specifically measuring reaction to the visual change, not anticipation.