Reaction time test

A reaction time test you can take in one minute

Wait for the box to turn green, then tap as fast as you can. Five rounds, about a minute, and you get your average reaction time.

1 min · Nothing needed · Indicative, not a diagnosis

3D illustration of a phone on a stand with a glowing green button and a small stopwatch

No account needed — free, in your browser.

In short: yes, you can measure your reaction time in a minute in this page: tap the box as soon as it turns green, five times, and see your average in milliseconds. It is a simple, indicative test that helps you compare yourself over time on the same device; it is not a medical test, and not a test of fitness to drive.

Five rounds

The box turns green after a random pause; tap as soon as it does.

Your average

The result is the average of five rounds, with your best round marked.

Compare over time

Same device, similar time of day: that is how results stay comparable.

How the test works

  1. Sit comfortably and put away distractions.
  2. Press Start. The box is red; after a random pause of a few seconds it turns green.
  3. Tap as soon as it turns green. If you tap before, the round starts again and is counted as an early tap.
  4. Five rounds. Your result is the average time, in milliseconds.

What affects the result

Reaction time changes with sleep, tiredness, alertness, caffeine, age and practice, and also with the device: the screen, the touch delay and the browser all add a few milliseconds. That is why the useful comparison is with yourself, on the same device, at a similar time of day, rather than with someone else's score.

What this test is not

It is not a medical test and does not diagnose anything. It is not a test of fitness to drive. Do not take the test while driving. If you notice a lasting change in your reactions, coordination or alertness, talk to a doctor.

Frequently asked questions

What is a normal reaction time?

For a simple test like this, on a screen, many adults land somewhere around 200 to 300 milliseconds, but devices differ a lot. Compare your results with your own earlier ones on the same device.

Why is my reaction time slower than usual?

Tiredness, poor sleep, distraction, a different device or browser, and simply not being warmed up can all slow it down. Try again after a short rest.

Does tapping early count?

No. A tap before the box turns green starts that round again and is shown as an early tap in your result.

Is the result saved?

The test runs on your device and keeps the result only while this page is open; nothing is stored in your browser. You can copy it; the Anpheros Daily app does not store reaction time results yet.

This guide is for information and does not replace medical advice. For decisions about your health, talk to your doctor. In an emergency, call your local emergency number (112 in Europe).
Free on the Basic plan

Keep every result in one place

Anpheros Daily is free. Your tests sit next to your symptoms, medications and lab results, with the date, under your control.

  1. 1Create your free accountAbout a minute, in your browser
  2. 2Save this resultNext to your other tests, to compare over time
  3. 3Show your doctorOne page, or a link that expires
  • No card needed
  • Nothing to install
  • Data stored in the EU