Free Reaction Time Test
A simple visual reaction tool — useful on its own, even if you never play Focus Drop
How it works: Wait for the panel to turn green, then tap or click as quickly as you can. Early clicks count as false starts. You will complete 5 valid trials; then we show average, best, and consistency with an interpretation.
Tap to start
5 trials · wait for green
Click or tap the panel when you are ready.
Your results
What these numbers mean
This tool measures simple visual reaction time: one clear “go” signal, one response. It does not measure choice reaction time, decision quality under distraction, or clinical attention disorders.
Approximate adult bands used for interpretation on this page (ballpark ranges for educational comparison, not diagnosis):
| Average RT | Band | Plain reading |
|---|---|---|
| < 200 ms | Very fast | Excellent simple RT for this setup |
| 200–250 ms | Fast | Strong everyday performance |
| 250–300 ms | Typical | Common adult simple RT range |
| 300–400 ms | Slower | Still normal for many contexts; fatigue/distraction matter |
| > 400 ms | Needs practice / retest | Try again rested, full screen, fewer distractions |
Device latency, browser scheduling, and display refresh can add tens of milliseconds. Compare yourself to yourself across days more than to absolute “world records.”
How to use this result
- Retest after sleep, caffeine changes, or long screen sessions to see how your own baseline moves.
- If false starts are high, you are anticipating — that is a different skill than reacting to a true signal.
- Large spread between best and worst often means attention dipped mid-set, not that your “hardware” changed.
Read more in What is reaction time? and Speed vs accuracy.
Optional next step
If you want a longer practice loop that mixes reaction speed with aim, streak management, and impulse control, you can try Focus Drop. The reaction test above is complete without it.
How this guide was verified
The mechanics and examples on this page are based on the shipped Focus Drop rules and a real browser capture, not invented player statistics. Compare this page with the reaction-time methodology for the related system details.