What Is the Average Human Reaction Time?
For a simple visual reaction time task : one stimulus, one response, as in "click when the screen turns green" : large-sample studies put the adult median at approximately 250–273 ms. The distribution is skewed: most people cluster between 200 and 300 ms, with a thin tail of very fast responders below 180 ms and a longer tail of slower scores driven mostly by fatigue, distraction and equipment.
Two caveats matter before you compare your own number. First, browser-based tests include display and input latency, typically adding 10–50 ms on top of your biology. Second, the stimulus type changes everything: sound is detected faster than light, and having to choose a response is slower than making a fixed one.
What Is a Good Reaction Time?
Here is how a simple visual reaction time score typically ranks against the population:
| Reaction Time | Rating | Approximate percentile |
|---|---|---|
| < 150 ms | Exceptional : elite athlete / pro gamer territory | Top ~1% |
| 150 – 200 ms | Excellent | Top ~10% |
| 200 – 250 ms | Good : faster than average | Top ~25–30% |
| 250 – 300 ms | Average : the typical adult range | Middle |
| 300 – 400 ms | Below average : often fatigue or distraction | Bottom ~40% |
| > 400 ms | Slow : retest rested and warmed up | Bottom ~20% |
A single score is a noisy signal. If you want a number you can actually compare week to week, run five attempts, discard the first as a warm-up, and average the rest : which is exactly what our reaction time test does for you.
Average Reaction Time by Age
Reaction time follows a shallow U-shaped curve across the lifespan. It is slow in early childhood because the prefrontal cortex : the layer that decides how to respond : is the last region to finish myelinating, around the mid-twenties. It peaks in the late teens to early twenties, then declines gradually.
| Age group | Typical simple visual reaction time | Notes |
|---|---|---|
| 10–14 | 220–260 ms | Still developing; improves quickly with practice |
| 15–19 | 190–220 ms | Near-peak biological speed |
| 20–24 | 180–210 ms | Peak performance years |
| 25–39 | 200–240 ms | Slight decline; experience compensates |
| 40–49 | 230–270 ms | Noticeable but modest slowing |
| 50–59 | 260–310 ms | Slower, still highly trainable |
| 60–69 | 290–350 ms | Significant slowing; training still helps |
| 70+ | 330–400 ms | Slowest range; training benefits remain |
The rate of decline after the mid-twenties is roughly 1–2 ms per year for simple reaction time, and faster for choice reaction time, because the decision-making circuitry ages more quickly than the sensory pathways. The encouraging part: training compresses the curve. Studies of older adults doing daily reaction training have shown improvements of 15–20% within about eight weeks, with some performing comparably to untrained people twenty years younger.
Does Gender Affect Reaction Time?
Studies consistently find a small average difference, with men roughly 10–30 ms faster on simple reaction time tasks. The gap narrows sharply on practised tasks and among trained individuals. In practical terms it is dwarfed by the effects of sleep, focus, age and practice : it says very little about any individual, and it is not worth optimising around.
Simple vs Choice Reaction Time
Simple reaction time is one stimulus with one predetermined response (click when green). Choice reaction time requires selecting among multiple responses (press left for red, right for blue). Choice tasks typically run 100 ms or more slower, because the decision step itself costs time : a difference first formalised in Hick's law, which describes how reaction time grows logarithmically with the number of options.
Most online tests, including ours, measure simple reaction time. That is the right choice for benchmarking raw neural speed, but it is a narrower measure than real-world performance, which is almost always a choice task.
Visual vs Auditory vs Tactile Reaction Time
| Stimulus type | Typical reaction time | Why |
|---|---|---|
| Auditory | 140–160 ms | Sound reaches the cortex in fewer synaptic steps |
| Tactile | 155–185 ms | Direct somatosensory pathway |
| Visual | 200–250 ms | Retinal processing and cortical interpretation add time |
Although light travels vastly faster than sound, the brain interprets sound more quickly. That is why starting pistols are used in sprints rather than starting lights.
What Is a Good Reaction Time for Gaming?
Regular competitive players typically sit around 150–200 ms, with professional esports athletes averaging roughly 160–180 ms on simple visual tasks. That advantage is part neural and part equipment: a 240 Hz monitor and a wired low-latency mouse can remove 20–40 ms of the number you see compared with a standard 60 Hz setup. If you want to train reaction under speed and precision together, try the Ball Catch Challenge.
How Is Reaction Time Measured?
Reaction time is the interval between stimulus onset and response onset, measured in
milliseconds. In a lab this is done with dedicated hardware. In a browser, the clock
starts on the frame the stimulus actually paints : a well-built test uses
requestAnimationFrame so the timestamp reflects the painted frame rather than
the moment the change was requested : and stops on the input event. The remaining
imprecision comes from display refresh rate, input device polling and browser scheduling.
Ready to see your own number? Run the free reaction time test : five attempts, averaged, no sign-up.