Reaction Time Test
Wait for the pad to turn green, then click as fast as you can. Track your best and average reaction time across attempts — all in your browser.
Averages update after each attempt.
Tip: press Space to react without moving the mouse.
What is a good reaction time?
A simple visual reaction time — the kind this test measures, where you only have to respond to a change and not decide anything — clusters tightly around a quarter of a second. Here is where a click-on-green result puts you.
| Rating | Reaction time | What it means |
|---|---|---|
| Elite | Under 180 ms | Faster than almost anyone reaches without a low-latency screen and a lot of practice. |
| Fast | 180–220 ms | The range trained gamers and athletes usually land in on a good attempt. |
| Above average | 220–250 ms | Quicker than most people, and a realistic target with a few warm-up rounds. |
| AverageMost people | 250–300 ms | Where the large majority of adults sit on a browser-based click test. |
| Below average | 300–400 ms | Common when you are tired, distracted, or on a laptop trackpad. |
| Slow | Over 400 ms | Usually a sign of hesitation or waiting to be certain rather than reacting. |
Reading the numbers: Your result includes your whole setup, not just you. A 60 Hz display adds up to 16 ms of frame delay, a wireless mouse a few more, and browser timing rounds to the nearest frame. Compare your own attempts on the same hardware rather than comparing across devices.
Accurate reflexes,
measured honestly.
A precise, private reaction test for gamers, athletes, and anyone curious how fast they really are.
Millisecond-precise timing
Uses the browser's high-resolution timer, so the measurement is accurate to a fraction of a millisecond.
- performance.now() timing
- Sub-millisecond precision
Last, best & average
One click is noisy. The tool tracks your rolling average alongside your best, so you see the honest number.
- Rolling average
- Attempt counter
Best score saved
Your personal best is stored locally in your browser, so it's still there when you come back tomorrow.
- Persists across reloads
- Local storage only
Click, tap or Space
React however's fastest for you — click the pad, tap on mobile, or hit the spacebar without moving the mouse.
- Keyboard support
- Touch-friendly
Private by default
Everything runs in your browser. No account, no ads, no trackers, and nothing is ever uploaded.
- No accounts
- No tracking
Instant & serverless
The whole test is a single static page. It loads fast, works offline after the first visit, and never waits on a server.
- Static & fast
- Works offline
Four steps,
under a second.
From cold start to a measured reaction time in seconds — no setup, no account.
Click to start
Click, tap, or press Space on the pad. It turns red while a random 1–3.5s delay runs.
Wait for green
Hold still while it's red. Clicking too early is a false start and the attempt restarts.
Click fast
The moment the pad turns green, click. The timer captures the gap in milliseconds.
Read your stats
See your time, plus your best and rolling average across every attempt this session.
One test, many reasons.
From gaming benchmarks to training checks — a fast, private way to measure how quickly you respond.
Reaction time test for gamers
Benchmark the reflexes that decide close fights in FPS and fighting games. Compare your reaction time before and after warming up, or across different mice and monitors, to see what your setup is really costing you.
Check your average reaction time
The average human reaction time to a visual cue is around 250 milliseconds. Take a handful of attempts and watch your rolling average settle to see where you land against that baseline.
Measure reflexes for sport and training
Athletes in racket sports, sprinting starts, and combat sports live and die by reaction speed. Use the test as a quick daily check to track how rest, fatigue, and training affect your reflexes over time.
Test the impact of your hardware
A 60Hz screen, a wireless mouse, or a laggy touchscreen each add milliseconds. Run the same test across devices to measure real-world input and display latency, not just your biology.
A quick focus and alertness check
Reaction time rises when you're tired or distracted. A 20-second test is a simple, repeatable way to gauge how alert you are right now — before a drive, a match, or an exam.
Reaction time test for kids and class
Simple, safe, and instant, it makes a great science-fair or classroom demo of stimulus and response. No sign-up and nothing stored means it's easy to hand to anyone.
The complete guide to reaction time
Reaction time is the interval between a stimulus appearing and your response to it. This tool measures the most common form —simple visual reaction time — where there is a single signal (the pad turning green) and a single response (a click). It's the same measurement used in psychology labs, driving research, and competitive gaming, just stripped down to something you can run in your browser in a few seconds.
Where the 250ms average comes from
The widely quoted figure of around 250ms for visual reaction time describes a population, not a person. It is an average across many people and many attempts, which means very few individuals actually sit at 250ms — they scatter either side of it, and the same person moves around within that scatter from one attempt to the next. Treat it as the centre of a distribution rather than a pass mark. Thebenchmark table above breaks that distribution into bands so you can see where a result sits instead of comparing it to a single number. One thing worth knowing before you judge your own score: the very first click of a session is almost always your worst.
Why a single result doesn't mean much
Reaction time is noisy. The same person, on the same hardware, can vary by fifty milliseconds from one attempt to the next depending on attention, how much they anticipated the cue, and small differences in the click itself. That's exactly why this test tracks arolling average and your best alongside your last result. Take ten or more attempts and read the average — it's a far more stable picture of your reflexes than any single lucky click.
Simple vs. choice reaction time
This is a simple reaction test: one signal, one response. It is not achoice reaction test, where you'd have to decide between several possible actions — for example, clicking left for a red square and right for a blue one. Choice reaction times are always slower because they include a decision step. Keep that in mind when comparing scores from different tools, since they may be measuring different things.
How much is you, and how much is your hardware?
Your score is your biology plus the round trip through your device. A 60Hz monitor can add over 16 milliseconds of display latency compared with a 144Hz or faster panel. Wireless mice, Bluetooth, and touchscreens add input lag on top. None of that is a flaw in the test — the browser's high-resolution timer is precise to a fraction of a millisecond — but it does mean the fairest comparison is your own results over time on the same setup, not a leaderboard against someone else's gear.
How to get your best time
Be rested, warmed up, and focused. Sit comfortably, use good lighting, and give the test your full attention — reaction time climbs sharply when you're tired or distracted. Resist the urge to anticipate the green: guessing when it will appear leads to false starts, which don't count and reset the attempt. The goal is to react, not predict. A low-latency screen and a responsive wired mouse will shave off the last few milliseconds.
Everything stays in your browser
There is no server involved in the measurement. Your attempts are kept in memory for the session, and only your best score is written to local storage so it survives a reload. There are no accounts, no ads, and no trackers. Close the tab and the session history is gone —run the test again any time to start fresh.
Reaction time, answered.
Is reaction time the same as a reflex?
Not quite, and the difference is large. A true reflex — your knee jerking when it's tapped — is handled by the spinal cord without the brain involved at all, and takes well under 100ms. This test measures a voluntary response: the signal travels to your brain, gets processed, and a decision to click travels back out to your hand. That round trip is why results here sit around 250ms rather than 50ms.
What is the average human reaction time?
The average visual reaction time for adults is roughly 250 milliseconds — about a quarter of a second. Reaction to sound tends to be slightly faster than reaction to a visual cue, and touch is faster still.
Why does my reaction time vary between attempts?
Reaction time is naturally noisy. Attention, fatigue, whether you anticipated the change, and small differences in how you clicked all shift the result by tens of milliseconds. That is why the tool shows a rolling average — take several attempts and read that instead of any single click.
Does my monitor or mouse affect my reaction time?
Yes. A 60Hz display can add over 16ms of latency compared with a 144Hz+ panel, and wireless mice or touchscreens add input lag on top. Your score reflects your reflexes plus the round trip through your hardware, so compare your own results over time rather than against someone on different equipment.
How can I improve my reaction time?
Being well-rested, warmed up, and focused makes the biggest difference. Regular practice, good lighting, a low-latency screen and a responsive mouse all help shave off milliseconds. Anticipating the cue too eagerly backfires — it leads to early clicks, which don't count.
What does this reaction time test measure?
It measures simple reaction time: the delay between a visual signal appearing (the pad turning green) and your response (the click). It is not a test of decision-making or choice reaction, where you also have to pick between options.
Is the reaction time test accurate?
It uses the browser's high-resolution performance timer, so the measurement itself is precise to a fraction of a millisecond. The main source of error is your hardware's display and input latency, not the test — which is consistent across your attempts.
Is anything uploaded or tracked?
No. The whole test runs in your browser. Your attempts stay in memory for the session and only your best score is saved locally so it survives a reload. There are no accounts, servers, ads, or trackers.
Tests closest to the Reaction Time test.
Different senses and cues, same question: how many milliseconds pass between the signal and your response.
Color Reaction
The pad flashes different colors. Click only when it turns green — react fast, but don't get caught out by the wrong color.
Number Reaction
Watch the numbers flash by and click the moment your target number appears. Measure how fast you recognise and react — all in your browser.
Keyboard Reaction
Wait for a key to appear, then press that exact key as fast as you can. Measure how quickly your fingers respond — not just your mouse.
Audio Reaction
Close your eyes if you like — listen for the beep and react the moment you hear it. Measure your auditory reaction time in milliseconds.