Reaction time test

Wait for the box to turn green, then click or press Space as fast as you can. Five rounds give you an average in milliseconds.

Rounds
0/5
Average
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Personal best
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runs locally in your browser · nothing is recorded or uploaded

How to take the reaction time test

  1. Click the box (or press Space) to start. It turns red.
  2. Wait. After a random delay it turns green.
  3. Click or press Space the instant you see green. Clicking on red counts as too soon and the round restarts.
  4. After 5 rounds you get your average and your best round.

Reaction time chart

AverageRating
Under 180 msElite: pro-gamer reflexes
180–220 msVery fast
220–270 msAbove average
270–330 msAverage
Over 330 msBelow average

Getting an accurate result

  • Use a wired mouse and a high refresh-rate screen if you have one; both shave milliseconds off the measured time.
  • Close other tabs and apps so the browser isn’t busy.
  • Run the test a few times: the first round is usually slower while you settle in.

Gaming setup check: measure your mouse’s polling rate and your clicks per second.

FAQ

What is a good reaction time?

The average reaction time to a visual signal is about 250 milliseconds. Under 200 ms is very fast, and many professional gamers average around 150–180 ms.

How does the reaction time test work?

Click to start and the box turns red. After a random wait of 1.5 to 5 seconds it turns green: click or press Space as fast as you can. The test runs 5 rounds and shows your average.

Does my monitor or mouse affect my reaction time?

Yes, a little. A 60 Hz screen can add up to about 17 ms before the green appears, and a slow mouse or wireless lag adds a few more. A 144 Hz or faster monitor and a wired gaming mouse give the most accurate result.

How can I improve my reaction time?

Sleep, caffeine timing and warming up all make a measurable difference. Regular practice in fast games helps too, though most people's average stays within about 20–30 ms of their baseline.

More tests

Keyboard test Press every key and see which ones work, stick or ghost. Mouse test Check every button, the scroll wheel and double-click faults. CPS test How many clicks per second can you do? 1, 5, 10, 30 or 60 seconds. Double click test Find out if your mouse registers one click as two. Scroll test Check your scroll wheel for skipping and wrong-direction jumps. Polling rate test Measure your mouse's polling rate in Hz.