13 FREE BENCHMARK TESTS
Measure your reaction time — precisely, and free.
Thirteen browser tests that time exactly how fast you respond to what you see, hear, and anticipate. No sign-up, no download — just react.
◦ Frame-accurate timing◦ Data stays on your device◦ Works on any device
LIVE DEMO
CLASSIC
Tap to start
Wait for green, then click as fast as you can
13
Precision tests
~250ms
Average human reaction
5
Rounds per score
$0
Free, no sign-up
01 / THE TESTS
Thirteen ways to test yourself
From a simple click to an F1 start and a braking hazard. Each one takes under a minute.
Pure Reaction
~30 sec
Classic Reaction Time Test
Wait for the panel to turn green, then click as fast as you can. Five rounds — your score is the median.
Measures · Visual RTStart
~30 sec
Spacebar Reaction Time Test
Same test, react with the spacebar — your keyboard hand vs. your mouse hand.
Measures · Visual RTStart
~30 sec
Audio Reaction Time Test
React the instant you hear the beep. Most people set their best score here.
Measures · Auditory RTStart
Motorsport & Driving
~45 sec
F1 Reaction Time Test
Five red lights, then lights out. Launch like a Formula 1 driver.
Measures · Launch RTStart
~40 sec
Drag Racing Reaction Time Test
Time the Christmas tree. Leave too early and you foul out.
Measures · AnticipationStart
~50 sec
Driving Reaction Time Test
Brake when a hazard appears — then see your real stopping distance.
Measures · Stopping dist.Start
Cognitive
Sport & Skill
~40 sec
Ruler Drop Test
The physics-class classic, on screen. The ruler falls under real gravity — catch it, and we show you the distance in centimetres and the time in milliseconds.
Measures · cm → msStart
~40 sec
Aim Reaction Test
Targets pop up one at a time. Click each one as fast as you can.
Measures · React + flickStart
~35 sec
Baseball Reaction Time Test
A 95 mph pitch gives you 0.4 seconds. Swing inside the window.
Measures · Timing windowStart
02 / WHY REACTIONBENCH
Not a toy. A benchmark you can trust.
Most reaction sites hand you a random number and a fake leaderboard. We built the opposite — four reasons people keep coming back.
01
Real, honest timing
Signals are timed to the exact painted frame, and we own up to the ~20–50 ms your hardware adds instead of faking lab-grade scores.
02
Thirteen tests, one place
Visual, audio, choice, motorsport, sport and endurance — measure every kind of reaction without hopping between sites.
03
Track your progress
Median, best and consistency are saved on your device, so you can watch a real trend build across days instead of chasing one lucky click.
04
Free & private
No account, no download, no upload. Nothing leaves your browser — start reacting in seconds and keep your data to yourself.
03 / HOW IT WORKS
Pick a test, react over five rounds, get your numbers.
STEP 1
Pick a test
Choose from thirteen — a simple click, a beep, an F1 start, a braking hazard, a falling ruler, and more.
STEP 2
React over five rounds
Respond as fast as you can. We time the signal to the exact frame it appears using your device’s high-precision clock.
STEP 3
Get your numbers
See your median, your best, how consistent you were, and where you rank against everyone else.
Why five rounds? A single attempt is mostly luck. We take the median of five, so one lucky — or unlucky — click never decides your score.
04 / ACCURACY
We measure honestly — and we show our work.
Most reaction-time sites never tell you how they time you. We do, because a benchmark is only as good as its method.
TIMING
Timed to the painted frame
We stamp the signal the moment your screen actually shows it, and catch your response the instant your finger or mouse acts — not a frame later.
HONESTY
The part no one admits
No web test is perfect. Your monitor and mouse add roughly 20–50 ms of delay we can’t see. We tell you, instead of pretending our numbers are lab-grade.
PRIVACY
Your scores stay yours
Every result is stored on your own device. No account, no upload, nothing to sign. See exactly how it works on our methodology page.
05 / WHAT'S A GOOD SCORE?
Where your click lands
Legend
under 149 ms
Top 2% of people
Elite
150 – 200 ms
Top 13% of people
Fast
200 – 249 ms
Top 40% of people
Average
250 – 299 ms
Right in the middle
Relaxed
300 – 349 ms
Bottom 67% of people
Take a nap
350 ms +
Bottom 84% of people
06 / WHY IT MATTERS
A faster reaction is a safer, sharper you.
Reaction time isn’t just a number — it’s the gap between a signal and your response, and it quietly shapes moments that actually matter.
~1.5s
Behind the wheel
At highway speed, the difference between a 200 ms and a 400 ms brake reaction is several car lengths of stopping distance — often the whole crash.
400ms
In sport
A 95 mph fastball, a serve, a starting gun — elite sport lives inside windows too short to think through. You react, or you miss.
150ms
In gaming
Pro FPS players fire in about 150 ms. A trained, consistent reaction is often the edge between a flick that lands and one that trades.
24
For your health
Reaction speed peaks around age 24 and drifts with sleep, focus and age. Tracking it is a simple, honest read on how alert you really are.
07 / QUESTIONS
Reaction time, explained simply
What is the average human reaction time?
For a simple visual test — see a light, then click — most people land between 200 and 300 milliseconds, averaging around 250 ms. You react a little faster to sound (about 170 ms) than to what you see.
Is a reaction time under 200 ms good?
Yes — consistently clicking under 200 ms puts you ahead of most people. Anything under about 100 ms usually means you guessed before the signal, because real reactions can’t be that fast.
Why is my reaction time slower on my phone?
Touchscreens and mobile displays add a little delay, so phone scores usually read 20–50 ms slower than a mouse on a desktop. We keep desktop and mobile results separate so the comparison stays fair.
Can you actually improve your reaction time?
You can sharpen it with sleep, practice, and staying alert, and most people get faster over their first few tries. But there’s a natural floor — you can’t train past human biology.
What is the fastest reaction time ever?
Genuine reactions bottom out around 100–120 ms. Sprinters who “react” faster than 100 ms to the starting gun are ruled to have jumped the start, because no one truly reacts that quickly.