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Average reaction time by age

Reaction time is fastest in your twenties and slows gradually after that. Lab studies put the slowdown at roughly 0.55 ms per year; large browser datasets suggest a bigger gap, closer to 7 ms per year — both can be right, because browser numbers also bake in device differences that correlate with age (older players more often play on phones and office hardware).

What to expect

AgeTypical visual reaction time
18–24Fastest years — averages cluster near the low end of the 215–260 ms population band
25–39Broadly average; training and gaming habits matter more than age here
40–59Noticeably slower on raw speed, often partly offset by anticipation and strategy
60+Slowest band on reflex tests — but the gap shrinks on tasks that reward judgment over raw speed

These are population tendencies, not verdicts. Sleep loss of just two hours can add 50–80 ms — more than decades of aging. A rested 55-year-old on a good mouse will beat a sleep-deprived 22-year-old on a phone almost every time.

⚡ Test your reaction time now →Free, 10 seconds, no sign-up. Get your milliseconds, your tier, and a challenge link for a friend.

Sources: ReactionBenchmark, “Average reaction time by age” (lab ≈0.55 ms/year vs browser ≈7 ms/year); ReflexBench improvement notes (2 hours of sleep deprivation adds 50–80 ms).