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Free Online Test

Reaction Time Test

How fast are your reflexes? Measure your response speed in milliseconds and see how you compare. According to Wikipedia, the average human reaction time to a visual stimulus is 200–250 milliseconds.

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What counts as a good reaction time?

Reaction time is measured from the moment a stimulus appears (the screen turns green) to the moment you respond (you click). A typical healthy adult reacts between 200 and 300 milliseconds. Elite athletes and competitive gamers often average below 200ms.

Result Rating Comparable to
Under 150msSuperhumanTop 0.1% — elite esports pros
150–200msExcellentCompetitive gamers, trained athletes
200–250msGoodAbove average — faster than most people
250–300msAverageNormal for healthy adults
300ms+Below averageMay indicate fatigue or distraction

What affects your reaction time?

Reaction time is not fixed — it changes constantly based on your current state. Fatigue, caffeine, hunger, focus level, and even time of day all play a role. Most people are fastest in the late morning or early afternoon.

Your first attempt is usually slower as your brain "warms up." Take 5 rounds and look at your average for a more reliable result.

What is a good reaction time?
The average human reaction time to a visual stimulus is 200–250ms. Under 200ms is excellent. Professional gamers typically average 150–180ms. Anything above 300ms may suggest fatigue or distraction.
Can you improve your reaction time?
Yes. Regular practice, physical exercise, adequate sleep, and reducing stress all contribute to faster reaction times. Games and sports that require quick responses train your reflexes over time.
Why do I react faster on some attempts than others?
Your reaction time varies based on attention, anticipation, and fatigue. You may also react faster if you subconsciously predict the timing — which is why the delay before "go" is randomized in this test.
How accurate is this test?
This test measures browser-based reaction time, which includes your display's response latency (typically 1–16ms depending on your monitor). Results are a reliable general indicator but may vary slightly by device. For clinical precision, specialized hardware is needed.
What is the average reaction time for gamers?
Competitive gamers typically react in 150–200ms, compared to the general average of 200–250ms. Elite esports players can react in under 150ms, though this is uncommon even at professional levels.
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This tool is for informational and entertainment purposes only. Results may vary based on your device, browser, display latency, and current state of alertness. This test does not measure or diagnose any medical or neurological condition.

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