Test how fast your reflexes are. Click as soon as the box turns green — but not before!
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Frequently Asked Questions
How does the reaction time test work?
Click the box to start. It turns red while you wait a random delay, then turns green — click as fast as you can the moment it changes color, and your reaction time in milliseconds is measured.
What is an average human reaction time?
Most people react to a visual stimulus in about 200-300 milliseconds. Trained athletes and gamers can sometimes react faster.
Why does clicking early reset the test?
Clicking before the box turns green means you're anticipating rather than reacting, so that attempt doesn't reflect a genuine reaction time.