Skip to content

Test your reaction time to a colour or a sound, see how you rank against everyone, and train your aim.

Your best: –
⚡
Click when the screen turns green

Click anywhere here, or press Space, to start. 5 tries.

Your times

–
–
–
–
–
–Average ms
–Fastest ms

You vs everyone

Found it useful? or .

What is Online Reaction Time Test?

Reaction Time Test measures how quickly you respond. Click to start, wait while the screen is red, and click the moment it turns green: the time in between, in milliseconds, is your reaction time. After five tries you get your average and your fastest, and a curve of how everyone else does with your result marked on it, so you see at a glance what share of people you beat. The average person takes about 270 ms.

The Reaction Time Test showing an average result with its five tries and the curve of human reaction times
The Reaction Time Test showing an average result with its five tries and the curve of human reaction times

Three Tests: Visual, Sound and Aim

  • Visual: the classic test. The screen turns green after a random wait; clicking before it does counts as too soon.
  • Sound: the screen stays the same and a beep is your cue. Most people react to sound 30 to 40 ms faster than to sight.
  • Aim: an aim trainer. Hit 20 targets that appear anywhere on the board as fast as you can, scored by time per target and accuracy.

Space and Enter work as well as a click, to test a keyboard instead of a mouse. Your best for each test is kept on your device.

How to use Online Reaction Time Test?

  1. Choose Visual, Sound or Aim.
  2. Click the board (or press Space) to start.
  3. Click the moment the screen turns green, or the moment you hear the beep. In Aim, click each target.
  4. After five tries, read your average and where you stand, and go again to beat it.

Frequently asked questions

What is a good reaction time?

Around 270 ms is average for a visual cue. Under 220 ms is fast, under 180 ms is excellent and typical of trained gamers. Anything under 100 ms is almost certainly a lucky guess, as the signal cannot travel from the eye to the hand that fast.

Does my screen or mouse change the result?

Yes, a little: a 60 Hz screen can show the green up to 16 ms late, and wireless mice and some keyboards add a few milliseconds. A high refresh rate monitor and a wired mouse give the truest number; compare scores on the same setup.

How can I improve my reaction time?

Sleep, warm up for a few minutes, and keep your finger resting on the button. Reaction time improves with practice up to a point, and aim training helps games more than raw reaction does.