Tools
Reaction time test
Click to start, then click as soon as it turns blue. Click too early and that try doesn’t count. We show the median of your last 8 tries.
Last
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Median of last 8
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Best / average
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Your result includes a little delay from your screen and mouse.
How the test works
The timer starts the moment the box turns blue and stops when you click.
The delay before blue is random so you cannot anticipate a fixed beat. This is a different clock from a click-to-photon test. If you want the added intervals (frame time, Hertz, poll), use the input-lag budget. Click count over a few seconds is the CPS test. A scored five-trial version is the Play reaction game.
Common questions
What is a good reaction time?
Most people land somewhere around 200 to 300 ms on a visual reaction test like this one. Under 200 ms is fast, and competitive gamers often sit near the lower end.
How do I improve my reaction time?
Get enough sleep, warm up before playing, and stay relaxed rather than tense. Regular practice helps a bit, but focus and a good setup matter more than grinding the test.
Does a higher refresh rate monitor improve reaction time?
It can shave off a few milliseconds, because a 144 or 240 Hz screen shows the color change sooner than a 60 Hz one. Your own reaction is still the biggest part of the number.
Why is my reaction time different every try?
Small changes in focus and attention make every try a bit different. That's why the test shows your median and average, not just your best click.
Monitor wait after the PC has sent a frame: what monitor input lag is.