Reaction Time Test
Measure how quickly you respond when the test area changes color. Complete five valid rounds, then review your average, median, and best times. No account required.
How to take the test
- Press Start Test, then wait for the area to turn green.
- When it turns green, click, tap, or press Enter/Space.
- Clicking too early shows “Too soon” and does not count.
- Finish five valid rounds to see your summary.
Device type, screen refresh rate, browser, mouse, and touch input can all influence measured times. Treat scores as personal benchmarks on the same setup rather than precise lab measurements.
Reaction time tool
Round 1 of 5
Ready when you are
Press Start Test, then wait for the area to turn green.
Recent results
Completed tests on this device will appear here. Scores stay in your browser only.
About your score
Results are suitable for entertainment and general self-comparison. They are not a medical assessment, clinical evaluation, or IQ score. If you are concerned about changes in reaction time or other cognitive abilities, consult a qualified healthcare professional. See the Disclaimer and Methodology pages for more detail.
FAQ
How does the Reaction Time Test work?
You complete five valid rounds. After you start, wait until the test area turns green, then click, tap, or press Enter/Space. Clicking too early is a false start and does not count toward your score.
Why can results differ between devices?
Hardware, display refresh rate, browser, system load, mouse, and touch input all affect measured times. Scores are best compared against your own history on the same device.
Are the results a medical or IQ assessment?
No. CognitiveBench provides entertainment and general self-assessment only. Results are not medical advice, a diagnosis, an IQ score, or a clinical evaluation.