Reaction Time Test
Click as fast as you can when the box turns green and see your reaction time in milliseconds.
Quick answer: Reaction Time Test: Click as fast as you can when the box turns green and see your reaction time in milliseconds. Everything runs in your browser, so nothing you enter is uploaded or stored.
Click to start
How to use Reaction Time Test
- Open the tool and enter your input.
- Adjust the options and watch the result update.
- Copy or download what you need.
Features
- Free, no signup
- Runs in your browser, nothing is uploaded
- Works on phone and desktop
- No watermark
Frequently asked questions
What is an average reaction time?
About 200 to 270 milliseconds for a visual signal.
Why does mine change?
Sleep, caffeine, device lag and screen refresh rate all change the result.
Is the Reaction Time Test free?
Yes. It is free, needs no signup and works on any device.