Average reaction time at age 48
A typical untrained 48-year-old averages about 297 ms on a simple visual reaction test — 47 ms off the lifetime peak reached around age 24.
Reaction time follows a U-shaped curve across life: children start slow, speed peaks in the mid-20s at about 250 ms, and the average drifts gently upward afterwards. Here's exactly where age 48 sits on that curve — and why the number is less fixed than it looks.
Age 48 on the curve
| Age | Expected average |
|---|---|
| 38 years old | 273 ms |
| 43 years old | 284 ms |
| 48 years old | 297 ms |
| 53 years old | 310 ms |
| 58 years old | 325 ms |
Placed on the overall adult distribution (mean 273 ms), an average 48-year-old's 297 ms is faster than about 34.5% of all adults. The comparison is a little unfair — that pool includes every twenty-something — which is exactly why comparing against your own age group matters more.
What's happening at this age
From the mid-20s the average drifts upward by only a few milliseconds per decade — far less than most people fear. At 48, the expected average is 297 ms, just 47 ms off the lifetime peak.
The differences between people dwarf the differences between ages here: a trained 48-year-old comfortably beats an untrained 22-year-old. Experience also sharpens anticipation, which wins duels even when raw speed ties.
How to beat the curve at 48
- Consistency beats intensity: 5 minutes daily maintains speed that two decades of ageing barely touches.
- Watch the boring variables — sleep, caffeine timing, screen latency — before blaming age for a slow week.
- Train the general way that works at any age: short daily sessions, full attention, ten-round averages. The complete method is in how to improve your reaction time.