Reaction time test
Click the panel, wait for it to turn green, and click again as fast as you can. Five rounds give your average in milliseconds.
Reaction time test workspace
How to use
4 short steps.
Choose your input
Pick mouse or touch, keyboard, or a gamepad button. Compare only runs that use the same input.
Click to start
Click the panel once. It turns red and waits a random one to four seconds.
Click when it turns green
Press as soon as the panel turns green. Pressing on red is a false start and repeats the round.
Finish five rounds
Your latest, median, average and fastest times update after each round. Click the panel again for a new set.
What the result means
Match what you see to one of these.
Typical result
If your average is between 200 and 300 ms, you are in the range most people reach on a browser test with a mouse. Human Benchmark reports a median of about 273 ms across millions of runs.
Fast result
If your average is under 200 ms, your reaction is quick for a mouse test. A single round under 150 ms usually means a guess that landed after the signal, so check the median and retest.
Median versus average
If one round is much slower than the rest, the average moves but the median barely does. Use the median to describe the run and the fastest time to see your best single response.
Input differences
If touch or a trackpad reads slower than a mouse, that is expected. Touch screens and trackpads add a few tens of milliseconds, and a gamepad is polled at a fixed rate.
Troubleshooting
If the test fails, try these in order.
Repeat interrupted rounds
Switching tabs or opening a menu voids the current round. Return to the page, click the panel, and repeat it.
Turn off power saving and remote desktop
Low power modes, remote sessions, and busy background apps delay both the green signal and your click. Close them and run five fresh rounds.
Use one input at a time
Do not mix mouse rounds with keyboard or gamepad rounds. Pick one input from the selector and run a full set with it.
Check the device if every score is high
If a mouse or gamepad scores far slower than the keyboard on the same computer, run the mouse test or gamepad tester. Then retest here.
What this test can't tell you
Where a browser check stops.
- The time includes display response, input processing, and browser scheduling as well as your own reaction. It cannot separate a slow mouse from a slow monitor.
- It is not a medical, cognitive, age, or driving assessment. Use it to compare your own runs on the same device and input.
FAQ
Common questions about this test.
What is a good reaction time?
Most people score between 200 and 300 ms on a browser test with a mouse. Human Benchmark reports a median of about 273 ms, and anything under 200 ms counts as fast. Touch screens and trackpads usually add a few tens of milliseconds.
Is 200 ms a slow reaction time?
No. A 200 ms average is faster than most results on a browser test, where the typical range is 200 to 300 ms. Scores that low usually come from a mouse or keyboard on a fast display.
Is a 100 ms reaction time possible?
Not in a normal browser test. The display, input device, and browser add delay before your reaction even starts. Single rounds under 150 ms are almost always a guess that landed after the signal, so trust the median over five rounds.
Does a keyboard, mouse, or controller give the fastest reaction time?
A keyboard or mouse is usually a little faster than a controller or touch screen. A gamepad is polled at a fixed rate and a touch screen adds processing. Pick the input from the selector so you compare like with like.
Why does the test use five rounds?
One round can be a guess or a distraction. Five rounds give an average and a median that describe how you react rather than one lucky click.