Reaction Time Test
Click as soon as the screen turns white. Measures raw visual reaction time in milliseconds.
About the reaction time test
The reaction time test measures how fast your brain and body respond to a visual signal. It's a simple but powerful benchmark used by athletes, gamers, and researchers to gauge alertness and reflex speed. Take five attempts to get a reliable average.
How it works
- 1Click Start and wait — the screen begins black.
- 2As soon as it turns white, click (or tap) as fast as you can.
- 3Your reaction time is shown in milliseconds. Lower is better.
- 4Repeat 5+ times for a reliable score. Personal best saves automatically.
Score benchmarks
How your score stacks up. Values are indicative averages, not clinical thresholds.
| Tier | Score |
|---|---|
| Highly Responsive | Top percentile |
| Above Average | Faster than typical |
| Average | Typical adult response |
| Below Average | Slower than typical |
Tips to improve
- Use a wired mouse or trackpad — wireless input adds measurable latency that can affect your score.
- Turn off browser extensions and background tabs.
- Rest your finger lightly on the button — don't press until you see white.
- Take the test when well-rested; tiredness can noticeably slow your reaction time.
Frequently asked questions
What is a good reaction time?
On a browser-based visual click test, a 'good' score is highly dependent on your hardware. Device latency, display refresh rates, and input methods heavily influence results, making exact millisecond comparisons between different setups unreliable.
Why is my reaction time slower than expected?
Results vary significantly by device, display, input method, browser, attention, and practice. Check our guide on how to improve reaction time for advice on reducing input latency and optimizing setup.
Does age affect reaction time?
Yes — reaction time generally changes with age, but consistent practice, sleep, and overall health are major factors that can keep reflexes competitive.
Is this test accurate?
Timing uses the browser's high-resolution performance timer, but real-world accuracy depends on your display refresh rate and browser event scheduling. Exact numbers should be treated as estimates relative to your specific setup.
Try another test
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