Reaction time doesn't stay constant throughout life. It follows a predictable pattern: it peaks in your early 20s, stays relatively stable through your 30s, then gradually declines. This article breaks down the data by age group, with references to published research.
Reaction Time by Age: Full Chart
| Age Group | Average (ms) | Fastest 10% | Slowest 10% |
|---|---|---|---|
| 12–17 | 220–250 | < 190 | > 300 |
| 18–25 | 200–230 | < 170 | > 280 |
| 26–35 | 210–250 | < 180 | > 290 |
| 36–45 | 230–270 | < 195 | > 310 |
| 46–55 | 250–300 | < 210 | > 340 |
| 56–65 | 280–330 | < 240 | > 370 |
| 66–75 | 300–370 | < 260 | > 420 |
| 75+ | 320–420 | < 280 | > 470 |
Note: these are simple visual reaction times — clicking when a light changes color. Choice reaction time (choosing between multiple responses) is typically 50–100 ms slower across all age groups.
Why Reaction Time Peaks in Your 20s
The human nervous system reaches peak efficiency between ages 20–25. Myelination of nerve fibers is at its maximum, brain processing speed is at its highest, and motor coordination is fully developed. This is why esports professionals and Formula 1 drivers are predominantly under 30 — their reaction time is biologically at its best.
The 2–4 ms Rule: How Aging Affects Speed
After age 25, simple reaction time increases by approximately 2–4 milliseconds per year. This may not sound like much, but over 20 years it adds up to 40–80 ms — the difference between elite and average. The rate of decline accelerates after age 60, when neural conduction velocity decreases more rapidly.
Average Reaction Time for Specific Groups
- Average person reaction time: ~250 ms (all adults pooled)
- Average for gamers: ~180 ms (competitive gamers), ~220 ms (casual gamers)
- Average reaction time in seconds: 0.25 seconds (one quarter of a second)
- Average reaction time in ms: 250 ms
- Average reaction time CS2: 160–190 ms among competitive players
- Average reaction time F1: ~200–250 ms for race starts
Can Older Adults Improve Reaction Time?
Yes. Studies show that regular cognitive training can slow age-related decline by 30–50%. Physical exercise is equally important — a 2024 study found that adults over 60 who exercised 3+ times per week had reaction times comparable to inactive adults 15 years younger. Regular testing with our free tool helps track your progress over time.