Subcutaneous fat percentage refers to the proportion of your total body fat that sits in the layer just beneath your skin. It’s the fat you can pinch between your fingers, and it makes up roughly 90% of the total fat in most people’s bodies. While there’s no universally agreed-upon “ideal” subcutaneous fat percentage, understanding where your body stores fat and how much you’re carrying matters more than the number on a scale.
Why There’s No Single “Normal” Number
Unlike blood pressure or cholesterol, there’s no clinical standard defining a healthy subcutaneous fat percentage on its own. Most body composition guidelines focus on total body fat percentage, which includes both subcutaneous fat and the deeper visceral fat around your organs. A widely cited research framework defines “overweight” as having at least 25% total body fat for men and 36% for women, with “obesity” starting at 30% for men and 42% for women. But these thresholds describe all fat combined, not subcutaneous fat specifically.
The reason no separate target exists for subcutaneous fat is partly practical: subcutaneous fat is far less dangerous than visceral fat, so clinical attention has historically focused on the deeper, more metabolically harmful type. That said, excess subcutaneous fat often signals that visceral fat levels are elevated too, so it’s not something to ignore entirely.
What Subcutaneous Fat Actually Does
This layer of fat isn’t just stored calories waiting to be burned. It insulates your body and helps regulate temperature, keeping you from overheating or getting too cold. It pads your muscles and bones, absorbing impact from bumps and falls. It also provides a pathway for blood vessels and nerves to travel from your skin down to deeper tissues, and it anchors your outer skin layers to the muscles and bones beneath them through connective tissue. Your body treats subcutaneous fat as its primary energy reserve, tapping into it when calorie intake drops below what you need.
Subcutaneous Fat vs. Visceral Fat
The distinction between these two types of fat is one of the most important things to understand about body composition. Subcutaneous fat lives between your skin and your abdominal wall. Visceral fat sits deeper, surrounding your liver, kidneys, and intestines. Visceral fat crowds these organs, puts pressure on them, and drives up blood pressure, cholesterol, and blood sugar. Those three risk factors are the starting points for diabetes, heart disease, stroke, and kidney disease.
Subcutaneous fat, by contrast, is far less metabolically active and doesn’t interfere with organ function the same way. But the two tend to rise together. Research published in Circulation found that in women, every additional 500 cubic centimeters of subcutaneous fat volume was associated with 16% higher odds of developing high blood pressure and 36% higher odds of metabolic syndrome over time. Interestingly, the same association didn’t hold for men, suggesting that the health impact of subcutaneous fat varies by sex.
How Hormones Shape Fat Distribution
Where your body stores subcutaneous fat depends heavily on sex hormones. Premenopausal women carry more subcutaneous fat overall, concentrated in the breasts, hips, and thighs. This pattern is driven by estrogen and progesterone, which actively direct fat toward those lower-body regions. Men tend to accumulate fat in the abdominal area, both subcutaneously and around the organs, with less fat stored in the hips and thighs.
Hormone therapy research in transgender individuals has made these effects especially clear. When transgender women received estrogen, subcutaneous fat increased significantly across all measured body sites. When transgender men received testosterone, subcutaneous fat decreased at every site while visceral fat slightly increased and thigh muscle area grew. These findings confirm that sex hormones don’t just influence how much fat you carry but fundamentally redirect where it goes.
How It Changes With Age
Total body fat increases steadily after age 30, and older adults may carry nearly one-third more fat than they did when younger. But the distribution shifts in an unfavorable direction: fat migrates toward the center of the body and accumulates around internal organs, while the subcutaneous layer under the skin actually thins. This is why older adults can have a higher disease risk even without gaining weight. The fat they have is redistributing from a relatively harmless location to a more dangerous one.
How Subcutaneous Fat Is Measured
Several methods can estimate how much subcutaneous fat you’re carrying, each with different tradeoffs between accuracy, cost, and accessibility.
Skinfold Calipers
This is the most common low-tech approach. A trained person pinches your skin at specific body sites and measures the thickness of the fold with a caliper. The most frequently used sites are the back of the upper arm (triceps) and just below the shoulder blade (subscapular), though a full assessment can include up to nine locations: chest, mid-torso, above the hip bone, mid-thigh, abdomen, triceps, and biceps. The raw measurements are plugged into equations that first estimate body density, then convert that to a body fat percentage. The accuracy depends heavily on the skill of the person taking the measurements, so results can vary between testers.
DEXA Scans
Dual-energy X-ray absorptiometry provides the most detailed breakdown. Modern DEXA software identifies fat within your abdominal region, estimates the subcutaneous portion, and then subtracts it from total abdominal fat to calculate visceral fat separately. The results include volume, mass, and area for both subcutaneous and visceral fat. DEXA is considered the clinical gold standard for body composition, but it requires specialized equipment and typically costs $75 to $200 per scan.
BMI and Waist Circumference
BMI (weight divided by height squared) is a rough proxy for overall fatness but tells you nothing about where your fat is stored. The World Health Organization recommends supplementing BMI with waist circumference to get a better picture of abdominal fat distribution. A large waist relative to your hips suggests more visceral fat, while fat you can pinch around your midsection is subcutaneous. Neither measurement isolates subcutaneous fat precisely, but together they give a practical starting point.
Reducing Subcutaneous Fat
Subcutaneous fat responds to a sustained calorie deficit, but it’s typically slower to disappear than visceral fat. When you start losing weight through diet or exercise, your body tends to burn visceral fat first. This is actually good news from a health perspective, since visceral fat is the more dangerous type, but it explains why the fat you can see and pinch often feels like it’s the last to go.
A realistic rate of total fat loss is roughly 0.5 to 1 pound per week through a moderate calorie deficit. There’s no way to target subcutaneous fat specifically through exercise. Spot reduction (doing crunches to lose belly fat, for example) doesn’t work. Resistance training can, however, change how your body looks at the same fat percentage by building muscle underneath the subcutaneous layer. Aerobic exercise and strength training together tend to produce the best long-term results for overall fat reduction.