Disclaimer

Informational and entertainment use only

The reaction tests, statistics and articles on ReactionTestTime are provided for:

• information: understanding how reaction time works;
• education: learning what affects reaction time and how it is measured;
• entertainment and personal performance tracking: benchmarking and improving your own results.

Not a diagnostic tool

ReactionTestTime is not:

• a medical diagnosis tool;
• a neurological diagnosis tool;
• a psychological diagnosis or assessment tool.

Results must not be used to diagnose, screen for, monitor or treat any condition, or to decide whether you are fit to drive, operate machinery or perform any safety-critical task. If you are concerned about your reaction time, coordination, alertness or health, consult a qualified healthcare professional.

Measurement limitations

Browser-based reaction testing is not medical-grade measurement. Results include latency from your display, input device, audio hardware, operating system and browser, and can vary with fatigue, attention and environment. See our methodology for details.

Content accuracy

We aim to keep guides accurate and cite sources, but content may not reflect the latest research and is not professional advice. Statistics are derived from anonymous user submissions and are provided without warranty.