Question 1

What is a good reaction time?

Accepted Answer

The average human reaction time is around 250 milliseconds. Under 200ms is excellent, 200-250ms is good, 250-300ms is average, and over 300ms could be improved with practice.

Question 2

How is reaction time measured?

Accepted Answer

When the screen turns green, click anywhere on it. The tool measures the milliseconds between the color change and your click, then displays the result.

Question 3

What affects reaction time?

Accepted Answer

Reaction time depends on age, fatigue, focus, distraction, and the type of stimulus. Visual reaction times are typically 200-300ms. Practice, rest and avoiding alcohol improve scores.

Question 4

Can I use this on a phone?

Accepted Answer

Yes, the tool is touch-friendly. Tap to start and tap again when the screen turns green.