Reaction Time
Tap the moment the screen turns green.
How to play Reaction Time
Goal: React as fast as you can.
- 1Tap the box to start.
- 2Wait while it is red.
- 3Tap the instant it turns green.
- 4Tapping too early does not count.
On a computer
Click the box
On a phone
Tap the box
Test your reaction time free. Click as soon as the screen turns green and see your speed in milliseconds.
About Reaction Time
The Reaction Time test measures how quickly you respond to a visual signal. Tap the box to start. It turns red, and after a random wait it turns green. Tap the moment it turns green. Your time is shown in milliseconds.
Reaction time tests are used in sports training and research, and simple online versions are popular for friendly competitions. Our free version keeps your best time and shows the average of your last five attempts. Tapping too early does not count.
Try it a few times to warm up. Your results depend on your device, your screen and how alert you are, so compare times on the same device.
Your reaction time can change during the day depending on how alert and rested you are. Many people like to test it in the morning and again later to see the difference. It is also a fun challenge with friends: take turns on the same device and compare averages. Arcade Pantry is free to play with no sign up and no download. Your best results are saved only in your own browser.
Reaction Time tips and strategy
- Rest your finger lightly on the screen or mouse button so you are ready to press.
- Focus on the center of the box and avoid looking away.
- Do not try to predict the change. The wait is random, and early taps do not count.
- Take a short break between attempts so you stay sharp.
- Compare scores on the same device. Screens and mice can add delay.
Reaction Time FAQ
What is a good reaction time?
Many people score in the 200 to 300 millisecond range on simple visual tests like this. Scores vary by device and person.
Why is my time slower on my phone?
Touch screens and displays can add small delays, so the same person may score a little slower on a phone.
Can I improve my reaction time?
Practice, good sleep and focus can help you get more consistent results.
What happens if I tap too early?
The attempt does not count and you can start again.
Is the reaction time test free?
Yes. It is free in your browser, and your best time is saved on your device.