An average body type, statistically speaking, depends on where you live, your age, and your sex. In the United States, the average adult woman stands about 5 feet 3.5 inches tall, weighs roughly 172 pounds, and wears a size 16 dress. These numbers paint a very different picture from what most people see in media or imagine when they hear the word “average.” Understanding the gap between statistical averages and cultural expectations can help you think more clearly about your own body.
Average Body Measurements in the U.S.
The CDC collects body measurement data from thousands of Americans every few years. The most recent numbers, from 2021 to 2023, put the average American woman at 63.5 inches tall (just under 5’4″) with a weight of about 172 pounds and a waist circumference of 38.5 inches.
For context, those measurements translate to a BMI of roughly 30, which falls just at the threshold of what medical guidelines classify as obesity. The medically defined “healthy” BMI range is 18.5 to 24.9, meaning the statistical average American body and the medically recommended body size are not the same thing. This is an important distinction: “average” describes what is common, not necessarily what is optimal for long-term health.
Average Body Fat Percentages
Weight alone doesn’t tell the full story, because two people at the same height and weight can look and feel very different depending on how much of that weight is fat versus muscle. The average American woman carries about 28% body fat, while the average American man has around 22 to 23% body fat in the 20 to 39 age range. Those numbers climb with age. Across all adult ages, American women average roughly 40% body fat and men average about 28%.
Body fat tends to shift location as you age, too. Younger adults store more fat in their limbs and hips, while older adults accumulate it around the midsection. This partly explains why waist circumference increases with age even in people whose weight stays relatively stable.
The Most Common Body Shapes
When people search for “average body type,” they’re often thinking about shape rather than numbers. Research from Manchester Metropolitan University used 3D body scanning to categorize women’s silhouettes and found that the most common shape is a rectangle: a relatively straight up-and-down figure without dramatic differences between bust, waist, and hip measurements. About 63% of the women scanned fell into this category.
The hourglass figure, which 26% of women believed they had, was only significantly present in women aged 18 to 35, where about 30% of participants showed that shape. After age 35, the hourglass figure dropped to just 4%. Hormonal changes, shifts in fat distribution, and natural changes in muscle mass all push the body toward a straighter silhouette over time. So if you feel like your body has become less “defined” as you’ve gotten older, that’s extremely common and nearly universal.
Average Clothing Size
Retail data confirms what the body measurements suggest. According to a 2024 analysis from the social commerce platform Mys Tyler, the most common dress size in America is a 16. More than half of American women, 54.4%, wear a size 14 or above, which the fashion industry classifies as “plus-size.” Despite this, the majority of clothing brands still design primarily for sizes below 14, creating a significant mismatch between what’s stocked on shelves and what most women actually need.
This gap is worth keeping in mind when you’re shopping. Struggling to find clothes that fit well isn’t a reflection of your body being unusual. It’s a reflection of an industry that hasn’t caught up to real data.
How Global Averages Compare
The U.S. average sits well above the global mean. Worldwide, the average BMI for adults rose from about 21.7 to 24.2 in men and from 22.1 to 24.4 in women between 1975 and 2014. That global average still falls within the medically healthy range, though the trend line has been climbing for decades. The rate of increase has slowed since 2000 in most developed countries and in parts of Latin America, but BMI continues to rise in many regions of sub-Saharan Africa and South Asia.
So what counts as “average” varies dramatically by country. A person with a BMI of 27 would be slightly below average in the United States but noticeably above average in many parts of East Asia or sub-Saharan Africa.
Average vs. Healthy: Why the Distinction Matters
The National Heart, Lung, and Blood Institute defines a healthy adult weight as a BMI between 18.5 and 24.9. Because the average American BMI hovers around 30, there’s a roughly five-point gap between what’s typical and what’s associated with lower risks of heart disease, type 2 diabetes, and joint problems. This doesn’t mean every person with a BMI of 30 is unhealthy, since BMI doesn’t account for muscle mass, bone density, or where you carry your weight. But it does mean that “average” and “healthy” are answering two different questions.
If you’re trying to figure out where you fall, the most useful combination of measures is your BMI, your waist circumference, and your body fat percentage. Waist circumference in particular captures visceral fat, the kind stored around your organs, which carries more health risk than fat stored in your hips or thighs. A waist measurement above 35 inches for women or 40 inches for men is generally associated with increased risk, regardless of what the scale says.
The takeaway is simple: knowing the statistical average helps you understand where you sit relative to the population, but it shouldn’t be your health target. The average body type in America reflects broad population trends shaped by food systems, activity levels, and genetics. Your own goals are better guided by functional markers like energy, mobility, blood pressure, and blood sugar than by trying to match a national mean.