Visual reaction · 5 rounds

⚡ Reaction time

Measure your visual reaction time: wait for the red panel to turn green, click as fast as you can — five rounds give your average and best in milliseconds, a per-round chart, comparison against typical adult ranges, and your all-time record on this device.

—Average of 5 rounds

—Best round

—Your record on this device

⚠️ For fun & reference. Typical adult visual reaction with a mouse click is ~200–270 ms; trained gamers/athletes reach ~150–190 ms; it slows gradually with age and fatigue. Your screen and input add a few dozen ms of latency, so compare against yourself on the same device rather than absolute numbers.