Reaction Time Tester

Test and improve your reaction speed

Home Reaction Time Tester
Test and improve your reaction speed

Test Your Reaction Time

Click the button below to start. When the screen turns green, click as fast as you can!

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Get ready to click!
CLICK NOW!
Your Reaction Time

Statistics

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Average
Best
Worst

About Reaction Time Tester

  • Measures time from visual stimulus (green screen) to your response
  • Random delay (2-5 seconds) ensures fair testing
  • Tracks best, worst, and average times
  • Persistent history (saved across sessions)
  • Anti-cheat detection for suspiciously fast times (<100ms)
  • Average human reaction time: 200-300ms
  1. 1 Prepare: Place your mouse over the designated area and wait for the screen to change color.
  2. 2 Wait for Signal: Wait for the prompt (visual, auditory, or both) to appear.
  3. 3 Click Instantly: Click the screen immediately upon seeing or hearing the signal. The tool displays your reaction time in milliseconds. Start your reaction test now!

What is the average human reaction time?

For visual stimuli, the average human reaction time is generally between 200 and 250 milliseconds.

Can I test auditory reaction time?

Yes, some versions allow selecting an audio cue instead of a visual one for specialized testing.

Does practice improve results?

Yes, consistent use of the Reaction Time Tester can improve scores slightly through muscle memory and anticipation.

Driver Safety

Test reaction time as a fun exercise to emphasize the importance of quick reflexes while driving.

Athletic Training

Use the tool to measure and track improvements in an athlete's physical response time.

Research

Use the tool in simple psychological or cognitive science experiments.

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