Average Reaction Time
For a visual signal on a computer screen, many adults score somewhere around 200 to 300 milliseconds in tests like this one. Results under 200 ms are fast; above 350 ms usually means something is slowing you down – tiredness, distractions or your equipment.
Take the five-round test above and compare your median time with these rough ranges. The median is the best number to look at because one lucky or slow round doesn't distort it.
What affects your reaction time
- Age – reaction times tend to be quickest in young adulthood.
- Sleep and fatigue – tired people respond more slowly.
- Attention – a distraction in the room can add tens of milliseconds.
- Equipment – screen refresh rate, mouse and browser all add small delays.
- Practice – familiarity with the test helps a little.
Why online results vary
Your result includes the time your screen takes to show green and the time your mouse or keyboard takes to register a click. These add a few to several tens of milliseconds, so compare scores on the same device rather than against other people's setups.
FAQ
What is a good reaction time?
Around 200–250 ms is good for a visual test on a computer; under 200 ms is very fast.
Is this a medical test?
No, it's a game for curiosity and practice.
Why is the median shown?
It reduces the effect of a single unusually fast or slow round.
Other ways to play: Reaction Time Test (all modes) · Aim Trainer · Audio Reaction Time Test · Choice Reaction Time Test · Reaction Time Test Unblocked · Reaction Test · Daily Aim Challenge · How to Improve Reaction Time
