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Reaction Time Test
Wait for the panel to turn green, then click or press the spacebar as fast as you can. We measure 5 rounds and report your average reaction time in milliseconds plus how you compare with other people.
Reaction Time Test
Press Start, then click as soon as the panel turns green.
About the Reaction Time Test
Reaction time is how long your brain takes to respond to something it sees. The average adult reacts to a visual cue in about 250 milliseconds; trained gamers and athletes are often faster.
This test runs 5 rounds and averages them. Jumping the gun before the panel turns green counts as a false start and repeats that round, so take your time and only click once the green appears.