How Strong Is the Average Person? Benchmarks and Numbers

A typical man in his 30s can squeeze a hand dynamometer with about 47 to 50 kg of force, while a typical woman of the same age registers around 30 kg. Those grip-strength numbers, drawn from studies spanning millions of people across dozens of countries, serve as the most widely used single measure of whole-body strength in research and clinical settings. But “average” varies enormously depending on age, sex, body size, geography, and even whether someone is cheering you on during the test. The real picture is richer than any single number can capture.

Why Grip Strength Is the Go-To Number

Researchers default to grip strength not because squeezing a device is the most important thing your body does, but because it is cheap to measure, highly reproducible, and correlates with overall muscular fitness. A hand dynamometer costs a fraction of a full gym setup and takes seconds to administer. More usefully, isometric force measurements like grip strength show moderate to very large correlations with dynamic performance in both upper and lower body tasks, meaning a person with a strong grip tends to be strong elsewhere too.¹ That is why virtually every large population health study uses grip as a proxy for strength.

The Numbers by Age and Sex

A 2024 systematic review pooling data from 2.4 million adults across 69 countries found that absolute grip strength peaks in the 30-to-39 age window, averaging about 50 kg in men and 30 kg in women.² U.S.-specific data align closely: the mean dominant-hand grip for American men aged 25 to 29 is about 50 kg, while the weakest average in that dataset, nondominant hand of women aged 75 to 79, sits around 19 kg.³

A Norwegian population study breaks the numbers into finer age bands and confirms the pattern. Men in their 20s through 40s hover around 45 to 47 kg on the right hand, then drift downward through the 50s, 60s, and 70s until they reach roughly 33 kg after age 70. Women follow the same arc at a lower level, peaking near 30 to 31 kg in young adulthood and declining to around 20 kg after 70.⁴ Your dominant hand is usually slightly stronger, but the gap is small, often just a kilogram or two.

How Much Stronger Are Men Than Women?

The grip numbers already hint at it, but the gap widens or narrows depending on which muscles you measure. In a well-known study comparing men and women matched for general fitness, women were about 52% as strong as men in upper-body tasks and about 66% as strong in lower-body tasks.⁵ The upper-body gap is consistently larger across studies, and the reason appears straightforward: women tend to carry a smaller fraction of their total lean tissue in their arms, shoulders, and chest compared to men.

A more recent study of university students found that women’s strength corresponded to over 50% of men’s, tracking closely with the fact that women had about 55% as much lean mass.⁶ When researchers look at individual muscle fibers under a microscope, the fibers themselves produce similar force per unit of cross-sectional area in both sexes. Men are stronger primarily because they have larger fibers and more total muscle, not because their muscle tissue is fundamentally different in quality.⁵

When Strength Peaks and How Fast It Falls

Strength does not plummet the moment you leave your 20s. The international grip-strength review shows that absolute values barely improve through early adulthood and peak in the 30-to-39 range, with the decline accelerating from middle age onward.² In one longitudinal English dataset, each additional year of age was associated with roughly a 0.4-kg drop in grip strength, though men lost force faster in absolute terms.⁷

The underlying driver is muscle loss. Skeletal muscle mass starts to decline around middle age at roughly 1% per year, and in severe cases, a person can lose about half their muscle by their 80s or 90s.⁸ Strength falls even faster than mass, because aging also reduces the nervous system’s ability to fully activate muscle. The practical consequence is that a 75-year-old may need close to their maximum force just to rise from a chair, something a 30-year-old does without thinking. Biomechanical modeling puts the minimum hip-and-knee force required for a sit-to-stand task at roughly 35 to 49 newtons per kilogram of body weight, a range that leaves shrinking margins for older adults.⁹

What Lean Mass and Body Fat Actually Do to Strength

Lean body mass is the single strongest predictor of upper-body strength. In a study of healthy older adults, lean mass and body-fat percentage together explained close to half the variation in right-hand grip strength.¹⁰ Higher body fat, on the other hand, was specifically linked to worse lower-body performance and endurance, likely because heavier people have to move more mass against gravity during tasks like walking or stair climbing.

This is also why comparing raw strength numbers between a 60-kg woman and a 100-kg man can mislead. Researchers who study strength across body sizes recommend normalizing to fat-free mass rather than total body weight, because fat tissue adds weight without contributing to force production. In lean populations, strength scales roughly with body mass raised to the power of 0.66 for tasks involving force alone. In populations with more body fat, the scaling exponent drops, meaning extra body weight contributes even less to strength.¹¹

Geography Matters More Than You Might Expect

Where you live turns out to be a strong predictor of grip strength, even after adjusting for age and sex. The PURE study, which tested over 125,000 healthy adults across 21 countries, found that grip was highest in Europe and North America and lowest in South Asia, Southeast Asia, and Africa. The spread is dramatic: men under 40 from Europe and North America had a median grip of 50 kg, while women over 60 from Southeast Asia had a median of just 18 kg.¹²

A separate meta-analysis comparing developed and developing regions found that normative values from developed countries clustered close together and sat slightly above British reference centiles. Developing-region norms, by contrast, were nearly a full standard deviation below.¹³ The reasons likely include differences in childhood nutrition, average body size, occupational physical demands, and prevalence of chronic disease, though no single factor fully explains the gap. The practical takeaway is that a “normal” grip for a man in Chennai is not the same as for a man in Copenhagen, and clinical thresholds need to reflect this.

Are People Getting Weaker Over Time?

There is a persistent worry that modern populations are losing strength compared to earlier generations, and the evidence is mixed. In the United States and England, grip strength appears to have declined across birth cohorts after adjusting for age, height, and weight. But in Northern Europe, the trend runs the opposite direction, with later-born cohorts showing stronger grips.¹⁴ So the narrative of universal decline does not hold globally. Some of the U.S. and British decline may reflect rising obesity and falling occupational physical activity, but teasing apart the contributions is difficult. At the individual level, age itself remains the dominant factor, far outweighing any cohort effect.⁷

Benchmarks Beyond the Grip Test

Grip strength is convenient, but most people think of “strong” in terms of what they can lift. The trouble is that the research base for untrained one-rep maxes on common gym lifts is thinner than you might guess. The best-studied populations are either college-age physical education students or clinical patients, and average values depend heavily on technique familiarity, not just raw muscle.

One study of 144 men aged 18 to 34 who were untrained to moderately weight-trained used the bench press as a reference and found that body weight and push-up count together explained about 56% of the variance in bench press strength.¹⁵ That means body weight and muscular endurance give a rough prediction of how much a person can press, but close to half the variation comes from other factors like limb length, coordination, and neural drive. This is why online “strength standards” based purely on body weight should be taken as very loose guidelines rather than precise benchmarks.

A meta-regression looking at the relationship between the percentage of a person’s one-rep max and how many reps they can complete found that sex, age, and training status had little influence on the curve. In other words, if two people can each lift 80% of their max for about 8 reps, it does not much matter whether one is 25 and the other is 55, or whether one is male and the other female.¹⁶ The absolute weights differ drastically, but the fatigue pattern is universal.

How Quickly the Untrained Person Gets Stronger

If these baseline numbers sound unimpressive, they change fast once someone starts training. In a 21-week strength training study, previously untrained men increased their maximal force by about 21%, while already-trained men gained only about 4%.¹⁷ Much of those early gains come not from bigger muscles but from the nervous system getting better at recruiting existing fibers. A study on unilateral strength training found that even the untrained opposite limb showed increased voluntary activation after a training block, suggesting that the brain’s ability to “turn on” muscle is a major limiter of strength for beginners.¹⁸

For untrained individuals, combining resistance and endurance training does not appear to hurt strength gains on major lifts. A meta-analysis found no interference effect in untrained people doing concurrent training, though trained individuals did see a small negative effect on squat and leg press performance compared to doing resistance work alone.¹⁹ So if you are starting from a sedentary baseline and want to run and lift at the same time, your squat numbers are unlikely to suffer for it.

Why Grip Strength Predicts How Long You Live

One of the more striking findings in the strength literature is that grip force predicts mortality. Across multiple large studies, weaker grip is consistently linked to higher risk of dying from any cause, as well as from cardiovascular disease and cancer specifically. In dose-response meta-analyses, higher grip strength reduced the risk of all-cause mortality in a roughly linear fashion within the 26-to-50-kg range.²⁰

The effect size is not trivial. Using U.S. national health survey data, adults whose grip fell in the lowest 20% for their sex faced roughly double the risk of death compared to those with stronger grips.²¹ Beyond mortality, grip has been linked to future functional decline, bone density, fracture risk, cognitive health, and even depression in older adults.²² Grip strength is not causing these outcomes directly, of course. It is a convenient window into overall musculoskeletal health, nutritional status, and physiological reserve. A person with a weak grip likely has weak legs, a less robust cardiovascular system, and less metabolic resilience, all of which feed into mortality risk.

The Surprising Role of Encouragement

Strength is not purely a physical trait. Your mental state during a test changes the result measurably. In a study of university students performing maximal-effort squats and deadlifts, verbal encouragement boosted one-rep-max squat performance from about 95 kg to about 117 kg, a jump of over 20%. Deadlift performance also rose significantly with encouragement.²³ A separate study on college-age women found that combining verbal encouragement with visual feedback on force output elicited even higher peak force than verbal encouragement alone.²⁴

This means that any “average strength” number is partly a measurement of testing conditions. A solo test in a quiet lab produces a lower number than the same person lifting with a crowd shouting support. Competitive powerlifters and their coaches have long known this intuitively, but it is worth remembering when you see tidy population averages. Those numbers reflect a controlled, usually quiet testing environment and likely underestimate what the same people could produce under arousal.

How Humans Stack Up Against Other Primates

A common claim is that chimpanzees are dramatically stronger than humans, sometimes cited as being five or even ten times stronger. The real number is more modest but still impressive. Research normalizing for body size found that chimpanzees are roughly four times as strong as fit young humans on a per-kilogram basis.²⁵ When researchers built computer models of whole muscles using species-specific fiber-type data, chimpanzee muscle produced about 1.35 times the maximum dynamic force and power of a similar-sized chunk of human muscle.²⁶

The difference is not because chimp muscle fibers contract harder. Individual fibers of both species produce similar force. The gap comes from muscle composition: about two-thirds of chimpanzee muscle fibers are fast-twitch, while humans have shifted toward a higher proportion of slow-twitch fibers.²⁶ That trade-off gave humans less explosive power but greater endurance, which likely mattered more for persistence hunting and long-distance travel on two legs. In a sense, “average human strength” is the product of an evolutionary bargain: we gave up raw force for the ability to keep going for hours.

Workplace Lifting and the NIOSH Equation

Outside the gym and the lab, one of the most practical questions about average strength is how much a person can safely lift at work. NIOSH developed a lifting equation that accounts for the position of the load, how often it is lifted, how far it has to travel, and how good the grip is. The equation produces a recommended weight limit for a given task and a lifting index that flags hazardous jobs.²⁷ Under ideal conditions (close to the body, waist height, infrequent), the baseline recommended limit is 23 kg, or about 51 pounds. That number is designed to be safe for most healthy adults, including women and older workers, so it is deliberately conservative relative to what a young man could max out. But it underscores that average human lifting capacity in a repetitive work context is far lower than what people can produce in a single maximal effort.

1
PubMed Central. The Relationship between Isometric Force-Time Characteristics and Dynamic Performance: A Systematic Review
2
PubMed. International norms for adult handgrip strength: A systematic review of data on 2.4 million adults aged 20 to 100+ years from 69 countries and regions
3
PubMed. Hand-Grip Strength: Normative Reference Values and Equations for Individuals 18 to 85 Years of Age Residing in the United States
4
PubMed Central. Hand Grip Strength: age and gender stratified normative data in a population-based study
5
PubMed. Gender differences in strength and muscle fiber characteristics
6
PubMed Central. Sex differences in upper and lower strength and their association with body composition among university students
7
The Journals of Gerontology: Series A. Getting a Grip on Secular Changes: Age–Period–Cohort Modeling of Grip Strength in the English Longitudinal Study of Ageing
8
PubMed Central. The age-related loss of skeletal muscle mass and function: Measurement and physiology of muscle fibre atrophy and muscle fibre loss in humans
9
PubMed. The minimum required muscle force for a sit-to-stand task
10
PubMed Central. Lean Body Mass Associated with Upper Body Strength in Healthy Older Adults While Higher Body Fat Limits Lower Extremity Performance and Endurance
11
PubMed. Allometric scaling of strength measurements to body size
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PubMed Central. Reference ranges of handgrip strength from 125,462 healthy adults in 21 countries: a prospective urban rural epidemiologic (PURE) study
13
PubMed Central. Global variation in grip strength: a systematic review and meta-analysis of normative data
14
PubMed Central. Cohort Differences in Physical Health and Disability in the United States and Europe
15
The Journal of Strength & Conditioning Research. Relationship of Push-ups and Absolute Muscular Endurance to Bench Press Strength
16
PubMed Central. Maximal Number of Repetitions at Percentages of the One Repetition Maximum: A Meta-Regression and Moderator Analysis of Sex, Age, Training Status, and Exercise
17
PubMed. Muscle hypertrophy, hormonal adaptations and strength development during strength training in strength-trained and untrained men
18
PubMed. Unilateral strength training increases voluntary activation of the opposite untrained limb
19
PubMed Central. Development of Maximal Dynamic Strength During Concurrent Resistance and Endurance Training in Untrained, Moderately Trained, and Trained Individuals: A Systematic Review and Meta-analysis
20
PubMed. Thresholds of handgrip strength for all-cause, cancer, and cardiovascular mortality: A systematic review with dose-response meta-analysis
21
Scientific Reports. Comparison of grip strength measurements for predicting all-cause mortality among adults aged 20+ years from the NHANES 2011–2014
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PubMed Central. Grip Strength: An Indispensable Biomarker For Older Adults
23
PubMed Central. Exploring the impact of verbal encouragement on strength, endurance, and psychophysiological responses: enhancing teaching strategies in sports science education
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PubMed Central. Type of Encouragement Influences Peak Muscle Force in College-Age Women
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PubMed. The strength of great apes and the speed of humans
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PubMed Central. Chimpanzee super strength and human skeletal muscle evolution
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PubMed. Revised NIOSH equation for the design and evaluation of manual lifting tasks