The average adult reacts to a visual signal in about 250–273 milliseconds. Reaction speed peaks in your early twenties, and then slows very gradually — roughly 2–6ms per decade. Here is what typical (median) results look like by age group:
| Age | Typical visual reaction | Note |
|---|---|---|
| 6–9 | ~350ms | nervous system still developing |
| 10–13 | ~320ms | improving fast |
| 14–17 | ~280ms | near-adult speed |
| 18–24 | ~250ms | lifetime peak |
| 25–34 | ~255ms | virtually unchanged |
| 35–44 | ~265ms | slight decline begins |
| 45–54 | ~280ms | still fully functional |
| 55–64 | ~300ms | practice offsets a lot |
| 65+ | ~330ms+ | varies widely by fitness |
Anything under 200ms on a tap test is elite territory — professional esports players and sprinters live around 150–190ms. (In athletics, a sprint start faster than 100ms is ruled a false start, because that's considered humanly impossible.)
Genetics set the floor, but you can shave off 10–30ms: sleep well (fatigue adds ~20ms+), warm up before testing, reduce distractions, and practice the specific task — your brain literally automates familiar signals. Caffeine helps a little; alcohol does the opposite.
⚡ Test your reaction time now (free, 1 min) →Average Reaction Time by Age is one of the most searched reaction-time topics online, but a lot of people who search it are unknowingly comparing two different things: a simple reaction time score and a choice reaction time score. Age charts are almost always built from simple reaction time data, while many popular online games and reflex apps actually measure choice reaction time, which is a slower and more variable number.
This mix-up is why someone can score 320ms on a game, see an age chart that lists 250ms as the median for their age group, and assume their reflexes are unusually slow. In most cases the real explanation isn't age at all — it's that two different tests were compared as if they were one. Understanding the difference makes any average reaction time by age comparison far more useful.
Simple reaction time (SRT) measures how fast you respond to one expected stimulus with one fixed response — for example, tapping the moment a screen turns green. There is no decision to make, so the number reflects raw nerve-to-muscle speed. Most published age norms, including the ones used to build average reaction time by age tables, come from this type of test.
Choice reaction time (CRT) adds a decision step: two or more possible stimuli appear, and you must pick the correct response for each one. Because the brain needs extra time to identify the stimulus and select an action, CRT scores are almost always 80–150ms slower than SRT scores for the same person. Most online reflex games and many phone apps are actually testing CRT, not SRT.
Use a simple reaction time test when you want an honest comparison against age-based norms, when tracking raw alertness over time (for example, before and after sleep loss), or when you want a number that's comparable across different people and ages. SRT is the standard for research and for most published average reaction time by age charts.
Use a choice reaction time test when the skill you actually care about involves decisions under pressure — sports reactions, gaming, or driving hazard response. CRT is more realistic for those situations, but it should never be compared directly to an SRT-based age chart, since the two measure different things.
On simple reaction time tests, children aged 6–10 typically post medians around 350–420ms, teens 11–17 improve to roughly 260–300ms, and reaction time peaks in the late teens and 20s at around 240–260ms. Someone born May 3, 1990 turns 36 in 2026, placing them in the 30–39 bracket, where the median SRT is usually 260–275ms — only slightly slower than peak. From the 40s onward the median rises gradually, reaching about 290–310ms in the 50s and 300–330ms at 65 and older.
Choice reaction time follows the same age curve but sits higher across the board: roughly 500–600ms for ages 6–10, 380–420ms in the 20s peak, 400–440ms in the 30s, and 450–520ms at 65+. Elite athletes and esports competitors can push SRT down to 150–180ms through years of practice, but this reflects trained anticipation more than a fundamentally different nervous system.
The most common mistake is comparing a CRT-based game score to an SRT-based age chart and concluding reflexes are "below average" when the two numbers were never meant to be compared. Another frequent error is judging ability from a single trial — reaction time naturally varies by 30–50ms between attempts, so one slow tap doesn't mean anything on its own.
People also forget that input lag from a mouse, touchscreen, or Bluetooth device can add 20–70ms before a person even reacts, inflating scores independent of actual reflexes. Finally, testing while tired, distracted, or right after caffeine can shift results enough to make an otherwise typical score look unusually fast or slow for that age group.