What Is the Average Human Reaction Time? Averages by Age
Reaction time is the gap between seeing something happen and physically responding to it. For a simple visual stimulus — like a color change on a screen — the average human reaction time is around 250 milliseconds (0.25 seconds).
Want to know yours? Try our free Reaction Time Test — click as soon as the screen changes color and get your result in milliseconds.
Average reaction time by age
Reaction time peaks in your early twenties and slowly increases (gets worse) from there:
| Age | Average visual reaction time |
|---|---|
| 10–14 | 260–290 ms |
| 15–24 | 220–250 ms |
| 25–34 | 230–260 ms |
| 35–44 | 250–280 ms |
| 45–54 | 270–300 ms |
| 55–64 | 290–320 ms |
| 65+ | 320+ ms |
The decline is gradual — roughly 2–6 ms per decade after age 24 — and staying physically and mentally active slows it down significantly.
What counts as a fast reaction time?
- Under 200 ms: exceptional — typical of esports players and elite athletes
- 200–250 ms: faster than average
- 250–300 ms: average
- Over 300 ms: slower than average (fatigue, distraction and age all play a role)
For context, professional Formula 1 drivers and top esports players routinely test between 150–200 ms. Anything under ~100 ms on a test is almost always anticipation (clicking before the stimulus), not genuine reaction.
What affects your reaction time?
- Sleep. Even mild sleep deprivation adds 20–50 ms. After 24 hours awake, reaction time is comparable to being legally drunk.
- Caffeine. A moderate dose genuinely improves reaction time by 5–10%.
- Alcohol. Even small amounts slow reactions measurably — a key reason drink-driving is so dangerous.
- Age. Processing speed slows gradually with age, though practice offsets much of it.
- Fatigue and distraction. Reaction time degrades quickly when you’re multitasking or mentally tired.
Can you improve your reaction time?
Yes, within limits. You can’t rewire your nervous system’s baseline, but you can:
- Practice the specific task. Gamers get faster at gaming reactions; drivers at driving reactions.
- Exercise regularly. Aerobic fitness correlates strongly with faster processing speed.
- Sleep 7–9 hours. The cheapest performance enhancer that exists.
- Test yourself regularly. Use the Reaction Time Test to benchmark, and the Aim Trainer to practice speed and precision together.
Frequently asked questions
Is 250 ms a good reaction time? It’s right at the average for adults. Under 220 ms is genuinely quick.
Why is my reaction time different every attempt? Normal variation is ±30 ms between attempts. Take five tries and use the average.
Does screen refresh rate matter? Yes — a 60 Hz display can add up to 16 ms versus a 144 Hz display. Compare results on the same device.
Benchmark yourself now with the free Reaction Time Test — five clicks and you’ll know exactly where you stand.