Reaction Time

How to play

Click the box the instant it turns green. Five tries — see how fast (and how consistent) your reflexes really are.

Rules

  • The box starts blue and waits a random amount of time before turning green — don’t click yet.
  • Click too early (while it’s still blue) and it flashes red — wait for it to reset and try that attempt again.
  • The moment it turns green, click as fast as you can — your time in milliseconds is recorded.
  • After 5 successful tries, your average reaction time is shown.

Tips

Keep your eyes on the centre of the box. Stay relaxed — tension slows you down!