Tools for Gamers
Reaction Time Test
React when the area turns green. Click, tap, or press Space. Measure five reactions and compare your average.
Round 0 / 5
False starts 0 / 3
Set complete
Rating
Fastest
Individual reactions
Personal best (five-round average)
Records are saved only in this browser.
Past 30 sets
No completed sets yet.
| Date and time | Average reaction time | Fastest |
|---|
Rating guide
| Average reaction time | Rating |
|---|---|
| < 150 ms | Extraordinary |
| 150–199 ms | Very fast |
| 200–249 ms | Fast |
| 250–299 ms | Standard |
| 300–349 ms | Slightly slow |
| 350–399 ms | Slow |
| ≥ 400 ms | Very slow |
Display and input-device latency affect results. These ratings are general guidelines, not a medical diagnosis.
How to test
Wait for a random interval, then press as soon as the area turns green. Use a left click, tap, or the Space key. Complete five rounds; the next round starts automatically after each result. Early inputs retry the same round; three false starts require restarting the set.
Frequently asked questions
Is a shorter reaction time better?
Yes. This is the time from the area turning green to your input, so a lower number means a faster reaction.
Why are my results different on other sites?
Sites can detect input at different moments and display the cue differently. Results also vary between attempts, even with the same device and input method.
Can I compare phone and computer results?
Display and input-device latency differ, making a direct comparison difficult. To track changes, use the same device and input method.
How is my personal best different from the fastest reaction?
Your personal best is the lowest average reaction time from your past tests. The fastest reaction is the quickest single attempt among the five in your current test.
Where are my results saved?
Results are saved in the browser you are using. History contains the latest 30 sets. Delete all removes both history and your personal best. Clearing browser storage also removes both.