Reaction Time Tester

Click as fast as you can when the box changes color

Test Your Speed

Not Started

Ready?

Press Start and wait for the signal

Your Results

Latest Time -- ms
Best Time -- ms
Attempts 0
Average -- ms

Recent Results

No reaction tests completed yet.

How It Works

1

Click the start button to begin the test.

2

Wait until the box changes color.

3

Click the box as quickly as possible.

4

Your reaction time will appear in milliseconds.