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Reaction Time Test – How Fast Are Your Reflexes?

Test your reaction time in milliseconds: wait for green, click as fast as you can, and get your average over 5 rounds and your best time.

  • Free, no sign-up
  • Runs in your browser, nothing uploaded

About the Reaction Time Test

Measure your reflexes. When the box turns green, click or tap as quickly as you can. Five rounds give you an average, and your best time is remembered.

Key features

  • Measures reaction time in milliseconds
  • Random delay so you can't anticipate
  • Catches clicking too early
  • Average of 5 rounds
  • Personal best saved in your browser
  • Works with mouse, trackpad and touch

How fast are your reflexes?

Click the box to start. It turns red; wait. When it turns green, click or tap as quickly as you can. After five rounds you get your average, and your best single time is remembered.

Reaction time scores

TimeRating
Under 170 msExcellent
170–200 msFast
200–250 msAverage
250–300 msBelow average
Over 300 msSlow (or a laggy device)

Why your setup matters

Your measured time is your reaction plus your hardware's delay. For the most accurate result:

  1. Use a wired mouse and a high refresh rate monitor if you have one (check with the refresh rate test).
  2. Close other tabs and apps that might slow the browser.
  3. Take the average, not your single best, as your real score.

CPS test, mouse tester, and refresh rate test.

How to use the Reaction Time Test

  1. Open the test. It's ready immediately, with nothing to install.
  2. Follow the on-screen prompt: click, type, press or watch as instructed.
  3. Read your results, which update live as you test.
  4. Repeat as often as you like. Results stay in your browser.

Frequently asked questions

What is a good reaction time?

The average human visual reaction time is roughly 200–250 ms in tests like this. Under 200 ms is fast, and consistent scores under 170 ms are excellent.

Why are my results slower on some devices?

Your result includes the delay of your screen, mouse or touchscreen and browser, which can add 10–50 ms or more. Wireless devices, 60 Hz screens and phones tend to measure slower than wired gaming setups with high refresh rate monitors.

Can I improve my reaction time?

Somewhat. Sleep, alertness and practice help, while fatigue, alcohol and distraction slow you down. Action games may improve reaction speed slightly over time.

Why does it start at a random time?

So you react to the color change instead of predicting it. Clicking before it turns green shows 'Too soon!' and doesn't count.

Are my camera and microphone recorded?

No. Audio and video are processed live in your browser and never uploaded. The only recording is the optional 5-second mic playback, which stays on your device and disappears when you leave the page.

Why does my browser ask for permission?

Browsers require your permission before any site can use your camera or microphone. You can revoke it at any time from the icon in the address bar.

Do these tests work on phones?

Most do: mic, webcam, speaker, screen, reaction time and click tests work on phones and tablets. The keyboard, mouse and gamepad testers need those devices connected.

Last updated:

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