Frequently Asked Questions

Reaction time measures how quickly you respond to a stimulus. It shows how fast your brain processes information and sends signals to your muscles.

Testing your reaction time helps you understand your reflexes and track improvements over time. It's useful for gaming, sports, and general cognitive assessment.

Yes. Our tests use performance.now() for precise timing. Results are accurate within a few milliseconds, accounting for browser and system latency.

No. All tests run directly in your web browser. No downloads, installations, or plugins required.

Start with Simple Reaction Time for basic measurement. Try Choice Reaction Time to test decision-making speed. Run both for a complete picture.

We recommend 5-10 rounds for meaningful results. More rounds provide better averages and consistency measurements.

Our tests work on all modern browsers including Chrome, Firefox, Edge, Safari, and Opera. For best results, use the latest version of your preferred browser.

Yes. Our tests are fully responsive and work on iOS and Android devices. Touch response times may differ slightly from mouse clicks.

Average visual reaction time is 200-300 milliseconds. Professional gamers and athletes often achieve 150-200ms. Under 100ms is exceptional.

Our performance score (0-100) combines reaction time, consistency, and accuracy. Scores 90-100 are Excellent, 75-89 are Very Good, 60-74 are Good, 40-59 are Fair, and below 40 is Poor.

Consistency shows how similar your reaction times are across rounds. Higher consistency means more reliable performance with less variation.

Results vary due to focus, fatigue, distractions, and random factors. For consistent results, test in a quiet environment when you're well-rested.