CHALLENGES / BUILT FOR YOU
Reaction Time Test.
Test how quickly you respond to a visual signal over five rounds.
ABOUT THIS TOOL
Useful by design.
The screen turns green after a random delay. Tap as soon as it changes and get your average reaction time in milliseconds.
How to use it
Press Start and wait for green. Tapping early counts as a false start. Complete five legitimate rounds.
Tips and limitations
Touchscreen latency, displays and input devices vary. Treat your score as a fun comparison, not a medical or competitive measurement.
QUICK ANSWERS
Good questions.
Is this precise?
Browser, device and display delays influence results.
How is my score calculated?
The arithmetic mean of five valid response times.
Is Reaction Time Test free?
Yes. This tool can be used without creating an account or paying a subscription. Selected tools have a clearly labelled advertisement to help support their development.
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