Reaction Time Test

When the red box turns green, click as quickly as you can.

Click to start

Wait for green

How to Use the Reaction Time Test

  1. Start the Test: Click the large blue area to begin. The screen will immediately turn Red.
  2. Wait: Do not click while the screen is Red. If you do, it will trigger a "Too Soon" error.
  3. Click on Green: The exact moment the screen turns Green, click as fast as you can.
  4. Review: Your reaction time will be displayed in milliseconds (ms). Complete 5 rounds to get your true average.

Want to test how fast you can click *after* reacting? Head over to our Click Speed Test.

Frequently Asked Questions

What is a good reaction time?

The average human reaction time to visual stimuli is about 250 milliseconds (ms). Fast competitive gamers often score between 150ms and 200ms. Anything below 150ms is exceptionally fast. To test how fast you can click *after* reacting, check out our Click Speed Test.

How accurate is this online reaction time test?

This test measures the precise millisecond difference between the color change and your click. However, hardware latency (your monitor's refresh rate, mouse click delay, and browser rendering) can add 10-50ms to your true physical reaction time.

How can I improve my reflex speed?

Getting adequate sleep, maintaining focus, and regular practice can slightly improve reflexes. Gamers often use high refresh rate monitors (144Hz or 240Hz) and lightweight gaming mice to minimize hardware latency, giving them an edge in reaction tests. Since heavy screen use can affect focus and slow your reaction times, managing your digital habits is crucial. Learn more in our guide on Managing Digital Wellbeing and the Best Apps to Control Screen Time.

What is a good score on the "click when red turns green" test?

Anything below 200 ms is considered excellent and above average. Professional esports players, such as CS:GO or Valorant pros, often score between 150 ms and 170 ms consistently.