What is the reaction time test?
Start a run, wait for the field to turn green, then respond as quickly as you can. Continue for as many runs as you want.
How the test works
- Click the test field to start a run.
- Wait through the red state without responding early.
- Respond when the field turns green, then continue or share that run video.
How your score is calculated
Each run reports the elapsed milliseconds between the green signal and your response. Lower milliseconds are faster.
What can affect your score?
Display refresh rate, input hardware, browser scheduling, fatigue, and anticipation can all affect a reaction score.
Questions
What is a good reaction time?
Many adults respond to a visual cue in roughly 200 to 300 milliseconds, but devices and test conditions matter.
Why repeat the test?
Several runs make it easier to notice the effect of anticipation, distraction, and device timing.