Reaction Speed Tester
Measure your reaction time in milliseconds. Tap or press Space the instant the screen turns green — track your best, average, and improvement over time.
Click the zone to start
Ready to test?
Tap the zone or press Spacebar to begin
Reaction Time Trend
Complete 2+ attempts to see your trend
Latest Speed
Run a test to see your speed gauge
Rating Distribution
Run attempts to fill the chart
Attempt History
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Start the test above to record attempts.
Rating Guide
| Time | Rating | What it means |
|---|---|---|
| <150ms | Superhuman | Likely anticipating — or a bot! |
| 150–200ms | Lightning Fast | Top 1% of human reactions |
| 200–250ms | Excellent | Elite gamer territory |
| 250–300ms | Above Average | Faster than most players |
| 300–400ms | Average | Typical human reaction time |
| 400–500ms | Below Average | Room to improve with practice |
| >500ms | Slow | Keep practicing! |
What is reaction time and why does it matter for gaming?
Reaction time is the delay between a stimulus appearing and you responding to it. In gaming, this translates directly to whether you get the first shot off, dodge an attack in time, or react to an enemy push before it's too late.
The average human visual reaction time is around 250ms. Elite gamers typically score between 150–220ms thanks to a combination of genetics, training, and environmental factors like monitor refresh rate and input lag.
Visual reaction
Light hits your retina, travels to your brain, and triggers a motor response. This is the baseline your score measures.
Average is 250ms
Most people react between 200–300ms. Elite FPS players often score 150–200ms. Under 150ms usually means anticipation.
Training helps
Consistent practice can shave 20–40ms off your average over weeks. Sleep and hydration also have measurable effects.
How to improve your reaction time
Practice regularly — 10–15 minutes a day is more effective than occasional long sessions. Make sure your monitor runs at 144Hz or higher. Stay hydrated and well-rested, as fatigue significantly increases reaction time.
How to use this tool
Start the test
Tap the green zone or press Spacebar to begin. A random 1–5 second wait begins immediately.
Wait for green
Don't tap during the Wait phase — reacting early counts as a failed attempt.
React instantly
The moment the screen turns green and shows GO!, tap or press Space as fast as you can.
Track progress
Complete multiple attempts to see your best, average, and trend over time.