Reaction time test
Measure your reaction time in milliseconds: wait for the screen to turn green and click as fast as you can.
How to useWhen it turns green, click!
Click to start5 attempts
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Reaction time test: what it is for
The test measures how long you take to react to a visual signal. When the screen turns green, click. After 5 attempts, you see your average and best time.
Clicking before green voids the attempt.
How to use
- Click to start.
- Wait for the screen to turn green and click.
- Repeat 5 times and see your average.
When to use it
- Training reflexes for games.
- Comparing with friends.
- Seeing how tiredness affects attention.
Frequently asked questions
What is a good reaction time?
The average person falls between 200 and 300 ms. Below 200 ms is very fast. Your monitor, mouse and tiredness also have an effect.
Why do 5 attempts?
A single attempt can be lucky or unlucky. The average of 5 shows your real time better.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 are free.