Reaction Time
Test your reaction time with five taps. Get your median in milliseconds, keep separate device records, or try the decoy mode.
Tap, click, or press Space as soon as the panel goes green.
Completed0 / 5
Personal best—
How to play Reaction Time
- Start a trial and wait for the green signal. React as soon as you see it.
- If you tap too early, retry that trial. In Decoy mode, ignore the amber flash.
- Complete five trials to see the median. Compare scores with your previous sessions on the same input type.
Keep your finger or cursor in place before the color changes. Your screen, browser, and input hardware all contribute to the measured time.
How is the reaction time score calculated?
The game reports the median of five valid trials in milliseconds. If your five times are 210, 250, 265, 280 and 400 ms, your result is 265 ms.
Can I compare a phone score with a mouse score?
Use the same device and input when comparing sessions. The game saves separate records for mouse, touch, pen and keyboard, and screen and input latency affect the result.
