Reaction Time
Test

Click when the screen turns GREEN. 5 rounds · fastest average wins

🎯5 Rounds
Wait for green
🏆Beat records

or press Space

What is a Reaction Time Test?

A reaction time test measures how quickly you respond to a visual stimulus. Average human reaction time is approximately 250 milliseconds. Professional gamers typically achieve 150–200ms. Test your reflexes and see where you rank globally!