F1 Reaction Test

How to use it: click the panel, tap it or press SPACE to start. Five red lights come on, one per second. When they all go out, react as fast as you can. Reacting while any light is on is a jump start and does not count.

The F1 reaction test is a free lights out reaction test that copies a Formula 1 race start. Five red lights come on one per second, then all go out after a random pause of 0.2 to 3 seconds. You click, tap or press SPACE the moment they go out, and your reaction time appears in milliseconds.

It runs in your browser with a mouse, keyboard or touchscreen. Your best time is saved on this device, and the panel also shows your last start and the average of your last five clean starts.

How to play the F1 reaction test

Click the panel, tap it, or press SPACE or Enter. The heading changes to “Get ready…” and the gantry is dark.
One second later the first column of red lights comes on. Another column lights every second until all five are lit, five seconds after you started.
Keep still. The test now waits a random time between 0.2 and 3 seconds.
All lights go out at once and the heading turns to “GO!”. Click, tap or press SPACE straight away.
Your time shows in large text, for example “212 ms”, and goes into the Last box. If it beats your previous best you also see “New best!”.
Click, tap or press SPACE again to line up for the next start.

Each start takes between about 5.2 and 8 seconds from your first press to lights out, so you can fit several starts into a minute. Holding SPACE down does not trigger repeat presses; only a fresh press counts.

What counts as a jump start

A jump start is any press while the start sequence is running, from the moment you start until the lights go out. That includes pressing while the gantry is still dark at the beginning, and pressing during the random hold after the fifth light.

When it happens, the lights switch off, the panel shows “Jump start!” and the attempt is thrown away. It is not added to Last, Best or your average, so it never helps your score. Press again to restart the sequence from the first light.

The rule is stricter than in real racing in one way. A Formula 1 car only has to be stationary from the third red light onwards, while this test punishes any early press. It keeps the challenge simple: wait for the lights, then go.

How the lights and timing work

The table below shows exactly what the test does on every start. These numbers come from the tool’s own code, not estimates.

Stage	What happens	Timing
Ready	Gantry dark, “Get ready…”	at 0 s
Lights 1 to 5	One more column every second	1, 2, 3, 4 and 5 s
Hold	All five columns lit	random, 0.2 to 3.0 s
Lights out	All lights off at once	5.2 to 8.0 s
Your press	Time shown in ms	your reaction

The clock starts on the screen frame where the lights disappear. It stops when your click, tap or key press reaches the page. The test uses the browser’s high resolution timer and rounds the result to the nearest whole millisecond.

Because the hold is random, counting “one, two, three” after the fifth light does not work. A guess that is a little early becomes a jump start, and a guess that is a little late gives you a slow time. The only reliable way to post good numbers is to react to what you actually see.

What the three boxes mean

Last (ms): your most recent clean start.
Best (ms): your fastest start so far. It is stored in this browser and is still there after you close the tab.
Avg last 5: the average of up to five of your most recent clean starts. It is not saved, so it resets when you reload the page.

The average is the honest number. A single quick start can be partly luck, while five starts in a row show how fast you really are today.

What is a good F1 reaction time?

On this test, a clean start under about 200 ms is quick, and most people land somewhere between 200 and 300 ms. Those bands line up with a large study of 1,469 adults by Woods and colleagues, which found an average simple visual reaction time of 231 ms on a computer, or about 213 ms once the delay of the screen and mouse was taken out.

Your average of five	How it compares
under 180 ms	Exceptional, or you are guessing
180 to 210 ms	Very quick, a strong starter
210 to 260 ms	Normal for most adults
260 to 320 ms	Slower, often tiredness or a laggy screen
over 320 ms	Something is slowing you down

These bands are a practical guide built around the study figures, not an official scale. Treat a single result below about 150 ms with suspicion. It usually means the press started before you saw the lights go out, and it would be a jump start on another day.

How fast do F1 drivers react at the start?

Formula 1 drivers usually react somewhere between 0.2 and 0.3 seconds at a race start, according to McLaren’s performance coaches. That is slower than a good score on this page, and the reason is the task. You press one button. A driver has to release the clutch paddle to a precise point while controlling the throttle.

McLaren’s coaches give 0.15 to 0.2 seconds as normal human reaction time and explain that a movement needing more coordination is harder to start quickly. The team also describes Lando Norris setting the lights on his steering wheel display to come on and go out, so he can practise releasing the clutch by the amount his engineers ask for.

TV graphics measure something else again. The F1 start analysis graphic, launched in 2021, defines reaction time as the time from lights out until the car begins to move. That includes the car’s response as well as the driver’s, so neither a broadcast number nor your score here is a pure measure of reflexes, and the two are not directly comparable.

Real F1 start lights compared with this test

The test follows the official procedure closely. Under Article B5.7 of the FIA 2026 Formula 1 Sporting Regulations, the five red lights on the start gantry come on one after another at one second intervals. The time between the fifth light and all lights going out is at the sole discretion of the permanent starter, and the start signal is all red lights going out.

	Real Formula 1 start	This test
Light sequence	Five red lights, one per second	Five columns, one per second
Delay after fifth light	Starter’s choice	Random, 0.2 to 3.0 s
Must stay still	From the third red light	From your first press
Jump start check	Transponder in each car	Any press before lights out
Penalty	Time penalty, drive-through or stop-and-go	Attempt not counted

Article B5.11 sets out the false start rules. A transponder detects the moment the car first moves, and the stewards choose between a 5 second penalty, a 10 second penalty, a drive-through or a stop-and-go. Since the starter decides the hold, real drivers face the same problem you do: there is no rhythm to learn.

Why your time changes between devices

Your result is your reaction plus the delay of everything between your eyes and the page. In the Woods study, the screen and mouse together added around 18 ms. Slower setups add more.

Screen refresh rate. A 60 Hz display only draws a new frame every 16.7 ms, so the lights can disappear up to a frame later than on a 144 Hz or 240 Hz monitor. Turn on game mode if your TV or monitor has one.
Mouse and keyboard. A wired mouse with a high polling rate reports your click sooner than a wireless one in power saving mode. Our mouse polling rate guide explains why, and the polling rate test measures yours.
Phones and tablets. Touchscreens and mobile browsers usually record slower times than a desktop with a wired mouse.
A busy computer. Lots of open tabs or a heavy download can delay input events.

Compare your scores on the same device and the same input. If you race a friend, use the same computer and take turns.

Mouse, keyboard or touch?

All three work, and the best choice is whichever needs the smallest movement.

Keyboard: rest a finger on SPACE. There is no hand movement at all, so many people post their best times this way.
Mouse: keep your index finger on the left button, already touching it, and press straight down.
Touch: hover your finger just above the panel and tap as the lights go out.

Pick one and stick with it while you track your progress. Mixing methods means you are comparing setups rather than your reactions.

How to get quicker off the line

Raw reflexes change slowly, but focus and routine can change in a single session. These habits make the biggest difference to your times on this test.

Warm up. Do three or four starts before you count anything. The first attempts after a break are often the slowest.
Watch the gantry, not your hand. Fix your eyes on the middle columns and let your finger rest on the button.
Stay relaxed. A tense hand reacts later. Keep light contact with the button so the press is short.
Do not anticipate. Guessing leads to jump starts and builds the habit of pressing on a feeling rather than a signal.
Play in short sets. Five starts, a pause, then five more, so the average of five reflects one focused block.
Sleep and timing. Tiredness shows up quickly in reaction scores, so compare sessions taken at a similar time of day.

For longer training ideas, read our guide on how to improve reaction time. It covers practice routines, sleep and the habits that help over weeks rather than minutes.

More tests to try

Reaction time test: a simpler colour change test with five tries per round and an averaged score.
Aim trainer: reaction plus mouse accuracy, with moving targets.
CPS test: how many clicks per second you can manage, which is a different skill from reacting to a signal.
Spacebar counter: useful if you prefer to start with the keyboard.
APM test: actions per minute for strategy and esports players.
Mouse test: check that your buttons register cleanly before chasing a best time.

Frequently asked questions

What is a good F1 reaction time on this test?

Under about 200 ms is quick, and 200 to 300 ms is normal for most people. Judge yourself on the average of your last five starts rather than a single run. A study of 1,469 adults found an average simple visual reaction time of 231 ms on a computer.

How long do the lights stay on before they go out?

Each of the five columns comes on one second after the last, so the fifth lights five seconds after you start. The test then waits a random 0.2 to 3 seconds before all lights go out. You cannot predict the exact moment.

Are you faster than an F1 driver?

Possibly, but it is not a fair comparison. McLaren’s coaches put a driver’s race start reaction at about 0.2 to 0.3 seconds, and that includes releasing the clutch with precision. Here you only press a button, so a sub 200 ms score does not mean you would beat a driver off the grid.

Why did I get a jump start?

You pressed before every light had gone out. Any press during the sequence counts, including one in the dark gantry before the first light. The attempt is not recorded, so press again to restart.

Is the lights out reaction test the same as a real F1 start?

The light sequence matches the FIA rules: five red lights at one second intervals, then all out after a delay chosen by the starter. The differences are the random 0.2 to 3 second window used here and the fact that you press a button rather than launch a car.

Is my best time saved?

Your best time is stored in this browser on this device, so it is still there next time. Your last time and the average of five reset when you reload the page. Nothing is uploaded or shared.

Can I use the keyboard instead of the mouse?

Yes. SPACE and Enter both start the sequence and react to lights out. Clicking or tapping the panel works as well.

Why is my time slower on a phone?

Touchscreens and mobile browsers usually add more input delay than a wired mouse on a desktop. A 60 Hz screen can also show the lights going out up to one frame later than a faster monitor.