Reaction Time Tester
Measure how fast you react when the screen turns green.
Wait for the red box to turn green, then click as fast as you can. Your reaction time is shown in milliseconds and your best time is kept.
How to use
- Click the box to arm the test.
- Wait for the box to turn green.
- Click as fast as you can to record your time.
Frequently asked questions
- What is a good reaction time?
- Around 200-250 ms is average for a mouse click.
- Why did it say too early?
- You clicked before the box turned green.