Reaction Time Test
Measure. Compare. Beat Your Best.
Wait for the signal, then respond as fast as you can. Five valid trials give you a median, best score and consistency—not one lucky click.
Click to begin
Five valid trials. False starts do not count.
or click the panel · Space also works
How fast is your reaction time?
A reaction time test measures how long it takes you to respond after a visual signal appears. Your result is shown in milliseconds (ms). The useful comparison is not one lucky click: five trials reveal both your typical reaction speed and how consistent you are.
What affects a browser reaction test?
Measurement context, not fake calibration.
Display refresh, mouse or touch input, browser scheduling and system load can change an online reaction-time result. ReactionMetric keeps the raw observed milliseconds and records coarse environment context instead of subtracting a guessed hardware delay.
Your reaction time history
Repeat the test on the same setup to track your own baseline and personal best. History stays in this browser.
Complete a session to start your personal trend.
| Date | Median | Best | Consistency |
|---|
Reaction time test FAQ
Is 200 ms reaction time slow?
A 200 ms browser result is fast in many common visual reaction tasks, but the number depends on the task and your device. Compare the same protocol and setup rather than treating one universal cutoff as clinical truth.
Is 170 ms a good reaction time?
170 ms is a very quick browser-observed result for a simple visual click task. Repeat several trials and check consistency before judging yourself from one attempt.
Is a 100 ms reaction time possible?
Very low scores can occur, but browser and hardware latency, anticipation, false starts, and task design matter. Extremely fast results should be interpreted cautiously rather than treated as pure nervous-system speed.
Does a higher refresh-rate monitor improve a reaction time test?
A higher refresh rate can reduce the time between a browser scheduling a visual change and a new frame appearing, but it does not directly make your nervous system faster. That is why ReactionMetric records refresh-rate context instead of “correcting” your score.
Is this the same as a reflex test?
Not exactly. This page measures a simple visual reaction-time task. Our Visual Reflex Test is a separate browser task; neither is a clinical tendon or neurological reflex examination.