AI logs your meals from a photo. Diet & workouts in one app.Get the free appReaction Time Test
Click when the screen turns green — how fast are you?
The average human reaction time to a visual stimulus is about 200–270 ms. Click or tap as fast as you can the moment the screen turns green. The test runs 5 rounds and shows your average.
What is a good reaction time?
Most people react to a visual stimulus in 200–270 ms. Under 200 ms is excellent — professional gamers and athletes often average around 150–180 ms.
Why is my reaction time slow?
Fatigue, distraction, age, and input lag from your screen or mouse all add milliseconds. Try again when rested, use a fast display, and focus on the color change.