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Reaction Time Test: How Fast Do You Respond?

A single click after a colour change reveals a surprising amount about alertness and focus.

What is the Reaction Time Test?

Reaction Time Test checks how quickly you respond to a visual signal. You wait calmly, the screen changes, and you click at once; the gap between the change and your click is your reaction time in milliseconds. Repeating the test a few times gives a fairer picture than a single lucky or unlucky try, since attention naturally varies.

How to use it

  1. Get ready and wait for the signal without clicking early.
  2. Click as soon as the screen changes.
  3. Read your time in milliseconds and repeat for a steadier average.

Worked example

Enter 250 ms and the test reports 250 ms in the average band, the same band most adults fall into.

What does 250 milliseconds mean?

On a simple visual test, 250 milliseconds sits in the average band: neither unusually fast nor slow.

Frequently asked questions

What is a typical reaction time?

Most adults land around 200 to 300 milliseconds on a simple visual test.

Why do my results vary?

Tiredness, distraction, and anticipation all shift results, so take a few tries and look at the middle range.

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