Reaction time by age group
Using simple visual click tests, typical averages look roughly like this:
| Age group | Typical average |
|---|---|
| 10–19 | ~270–300ms |
| 20–29 | ~250–270ms (fastest) |
| 30–39 | ~270–290ms |
| 40–49 | ~290–310ms |
| 50–59 | ~310–340ms |
| 60+ | ~340ms and up |
These are ballpark figures — individual fitness, sleep and practice easily move you a full age band in either direction.
Why young adults are fastest
Nerve conduction speed and the brain's processing efficiency peak in the early 20s. Children are still developing motor control and attention, so they lag slightly; older adults slow as nerve conduction and central processing gradually decline. The drop after 30 is real but slow — a fit 50-year-old often beats an unfit 25-year-old.
Can you fight the age slowdown?
Yes, partly. Regular aerobic exercise, good sleep, fast-twitch training (racket sports, action games) and simply staying mentally engaged all keep reaction time sharper than it would otherwise be. You can't reset the clock, but you can stay near the top of your age band.
Frequently asked questions
At what age is reaction time fastest?
Early-to-mid 20s, when nerve conduction and processing speed peak.
How much does reaction time slow with age?
Very roughly 2–6ms per year after 30 on average, accelerating slightly later in life — but training and fitness offset much of it.
Do kids have fast reaction times?
Not the fastest. Children are still developing motor control, so they typically trail people in their 20s.