Average Reaction Time: What Is a Good Score?

For a simple visual reaction test, a good score is under about 250 milliseconds, and under 200 milliseconds is excellent and close to trained-athlete level. The average healthy adult scores around 250 milliseconds, with most people between 200 and 300 milliseconds (National Library of Medicine). This guide explains exactly what counts as a good score, how averages shift with age, what pushes your number up or down, how testing works, and how top gamers and athletes compare. If you want the broader picture, see our companion overview of average human reaction time.

What Counts as a Good Reaction Time?

The single best reference point comes from Human Benchmark, whose reaction time test has recorded over 81 million attempts. The Human Benchmark data shows a median of about 273 milliseconds and a mean near 284 milliseconds on browser tests. Those numbers sit a little above the classic 250 millisecond lab figure because a screen and mouse or touchscreen add roughly 30 milliseconds of unavoidable device lag to every score you see.

With that context, here is a practical rating scale for a simple visual reaction test taken in a browser:

If you score 250 milliseconds, you are already faster than roughly half of everyone who has ever taken the test. The fastest humans reliably reach around 150 milliseconds, and scores under 100 milliseconds are not genuine human responses, they indicate anticipation or a measurement error.

What Is the Average Reaction Time by Age?

Reaction time improves through childhood, peaks in the early-to-mid twenties, holds fairly steady through the thirties and forties, then slows more noticeably from the fifties onward. Simple visual reaction peaks around age 24 and then slows by a few milliseconds per decade. The table below shows commonly cited average ranges by age group. Treat them as typical benchmarks rather than exact cutoffs.

These ranges are consistent with compiled by-age benchmark data. Adults over 60 typically test 30 to 50 percent slower than the young-adult peak, driven mostly by slower central processing rather than slower muscles.

What Factors Affect Your Reaction Time?

Age is only one influence. On any given attempt, several things move your score. The classic academic overview, Robert Kosinski's literature review on reaction time, surveys decades of studies on exactly these factors:

• Sleep and fatigue. Tiredness is one of the fastest ways to slow and destabilise your responses.
• Attention and distraction. Split focus lengthens reaction time, which is why divided attention is dangerous when driving.
• Stimulus type. People react faster to sound than to light, and faster to a single expected signal than to a choice among many.
• Physical fitness. Regular exercise is linked to quicker, steadier responses.
• Practice and warm-up. A few practice rounds prime your responses and lower your score.
• Device and setup. A laggy screen, a slow mouse, or a phone browser can add tens of milliseconds.

Because so much varies, a single slow attempt means little. Test several times and take your best few to get a fair reading.

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How Does Reaction Time Testing Work?

The most common test is simple and visual. A screen shows a waiting state, then changes color at a random moment, and you click or tap as fast as you can. The gap between the change and your input is your reaction time, usually averaged over five attempts to smooth out flukes. The randomness matters: if the change came at a fixed time, you would anticipate it and record impossibly fast, invalid scores.

There are two broad kinds of test. Simple reaction time uses one signal and one response, and falls around 200 to 300 milliseconds. Choice reaction time asks you to pick among several responses, so it is slower, often 300 to 700 milliseconds, because your brain must decide before acting. Most online reaction scores you compare against are simple reaction times. For a fair result, sit somewhere without distractions and use the same device each time so the hardware lag stays constant.

How Can You Improve Your Reaction Time?

You cannot rewrite your biology, but you can train within your range and strip away the things slowing you down:

• Practice regularly. Short, frequent sessions build faster, more consistent responses.
• Warm up first. A few practice rounds before a real attempt noticeably lower your score.
• Prioritise sleep. A rested brain reacts faster than a tired one.
• Stay active. Cardiovascular fitness supports quicker processing.
• Remove distractions. Give the task your full attention and use a responsive device.

For a fuller routine, see our dedicated guide on how to improve your reaction time. Keep expectations realistic: training sharpens what you have rather than turning an average adult into a sprinter.

How Does Reaction Time Matter in Gaming and Sports?

In fast games and sports, reaction time is a genuine edge. Competitive gamers in shooters and fighting games, and athletes reacting to a starting gun or a served ball, live in the milliseconds. Trained performers post scores well below the 250 millisecond adult average.

The research is striking. Studies of elite sprinters found average starting reaction times of about 166 milliseconds for men and 176 milliseconds for women, according to analysis of Olympic data in a peer-reviewed study on sprinter reaction times. Many footballers test in the 160 to 210 millisecond range. These gaps come from thousands of hours of sport-specific practice that streamline how the nervous system turns a signal into a movement.

That said, raw speed is rarely the whole story. Skilled players and athletes win more through anticipation, pattern recognition, and good decisions than through reflexes alone, and those skills keep improving long after raw reaction speed has peaked. If you enjoy training this way, our guide to puzzle games for adults looks at other ways games exercise the brain.