GreatJIN / minigame

06 / REACTION

Reaction Time Test

The moment the screen turns green, press as fast as you can.

Average-
Fastest-
Best-

    TYPICAL RANGES

    How fast are you?

    • Under 200msLightning fast
    • 200~250msFast
    • 250~300msAverage
    • 300ms or moreRelaxed

    These rough bands include mouse or touch screen lag and display delay. Measure several times on the same device and compare against yourself.

    QUICK GUIDE

    How to measure.

    1. 01

      Start

      Press the pad and it turns red. After a random wait of 1.5 to 4.5 seconds, it turns green.

    2. 02

      Press on green

      Press as soon as you see green. Space or Enter works too. Pressing before green repeats that round.

    3. 03

      See your average of five

      After five rounds you see your average, fastest, and slowest times. Copy the result and compare with friends.

    Frequently asked questions

    How accurate is it?

    The high-resolution browser clock measures from the frame that paints green to your press. Refresh rate, touch or mouse lag, and device speed can still shift results by tens of milliseconds, so it is best for tracking yourself on one device rather than comparing devices.

    Why are presses under 0.1 seconds retried?

    Seeing a change and moving a finger usually takes at least 0.1 seconds. Faster presses count as guesses rather than reactions, so that round is measured again.

    Any tips for a better score?

    Watch the middle of the pad with your finger ready. Turn up screen brightness, and use a wired mouse or touch rather than Bluetooth devices to reduce lag.

    Where are my scores saved?

    Only your best average is saved in this browser, and it is never sent to a server. Clearing the site data in your browser removes it.