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Is 27% bodyfat good for a woman?

By GyroscopeWomen, 27%US data by DEXA scan

For a woman, 27% sits in the average band on the American Council on Exercise chart (25 to 31%). It's inside the healthy range at every age from 20 to 79. By DEXA scan, about 7 in 100 American women aged 20 to 39 had less bodyfat than that, and fewer than 5 in 100 aged 40 to 59.

Where 27% sits on the chart

27% for a woman on the ACE chartThe ring is the US average by DEXA scan, about 40%
Women

The American Council on Exercise chart is the one most tools and scales use. Women carry more essential fat than men, so each band sits about 7 or 8 points higher for them. The average band on the chart is leaner than the real US average, which was 40% for women by DEXA scan. On a man, 27% is in the obese band (27% for a man).

How many women are leaner, by age

US women with less bodyfat than 27%By age, measured by DEXA scan, NHANES 1999 to 2004
  • Aged 20 to 39Average 37.8%, 2,043 scanned About 7 in 100
  • Aged 40 to 59Average 40.5%, 2,049 scanned Fewer than 5 in 100
  • Aged 60 to 79Average 42.4%, 1,846 scanned Fewer than 5 in 100
  • Aged 80 and olderAverage 40.4%, 594 scanned Fewer than 5 in 100

For women aged 60 to 79, fewer than 5 in 100 had less bodyfat than 27%, and fewer than 5 in 100 of those 80 and older. Bodyfat climbs with age on average, about 5 points from the 20s and 30s to the 60s and 70s, so the same number puts you among leaner people as you get older. These shares come from DEXA scans of about 13,000 US adults in the national health survey (NHANES), 1999 to 2004.

Is 27% healthy for your age?

AgeHealthy for women27% is
20 to 3921 to 32%Inside it
40 to 5923 to 33%Inside it
60 to 7924 to 35%Inside it

27% is inside it whatever your age, so your waist and your trend tell you more than the number does. The ranges come from a 2000 study of 1,626 adults measured in labs in the US, the UK and Japan, which matched bodyfat to the BMI lines for a healthy weight. Under the low edge, the researchers called it underfat.

Where the fat sits counts as much as the total. A waist over 35 inches raises the risk of heart disease and type 2 diabetes, even at a normal weight, by the US heart and lung institute's line. Check your waist

27% in pounds

If you weighFatEverything else
130 lb35 lb95 lb
150 lb41 lb110 lb
170 lb46 lb124 lb
190 lb51 lb139 lb

Everything else is your lean mass: muscle, water, organs and bone. It's what protein and lifting protect while you lose fat, and your protein range is counted from your weight. Your protein

Getting to 24%

Say you weigh 150 pounds at 27%. That's 41 pounds of fat. Getting to 24%, the top of the fitness band, means losing about 6 pounds of fat while you keep your muscle, which leaves you at about 144 pounds. At 0.5 to 1% of your weight a week, that takes about 5 to 9 weeks.

Eat protein at every meal, lift at least twice a week and keep the pace slow, so what comes off is fat. Calories to lose, and your date works it out from your own numbers, and how to lose fat and keep your muscle has the whole plan.

Your number is a range

The tool that measured you changes the answer. The shares above come from DEXA scans. The Navy tape method's typical error is about 3.5 points, so a tape that says 27% means about 23.5 to 30.5%. In a 2023 lab test of 15 devices in 73 adults, home scales missed the true number by about 3.5 points too low to about 12 points too high on average, depending on the model. They did better on change, within about 2 to 3 points over 12 to 16 weeks, so a scale is for the trend.

26% Every number 28%

10 sources
  1. Borrud LG, Flegal KM, Looker AC, Everhart JE and others, Body composition data for individuals 8 years of age and older: US population, 1999 to 2004, National Center for Health Statistics, Vital and Health Statistics series 11 number 250, table 3, 2010cdc.gov
  2. American Council on Exercise, press room, Bodyfat percentage averages for men and womenacefitness.org
  3. American Council on Exercise bodyfat categories, as printed in Healthline, Ideal bodyfat percentagehealthline.com
  4. Gallagher D and others, Healthy percentage bodyfat ranges: an approach for developing guidelines based on body mass index, American Journal of Clinical Nutrition, 2000pubmed.ncbi.nlm.nih.gov
  5. Akindele MO and others, The relationship between bodyfat percentage and body mass index in overweight and obese individuals in an urban African setting, with a table of healthy ranges based on Gallagher and others, Journal of Public Health in Africa, 2016pmc.ncbi.nlm.nih.gov
  6. National Heart, Lung, and Blood Institute, Assessing your weight and health risknhlbi.nih.gov
  7. Siedler MR and others, Assessing the reliability and cross-sectional and longitudinal validity of fifteen bioelectrical impedance analysis devices, British Journal of Nutrition, 2023pmc.ncbi.nlm.nih.gov
  8. Hodgdon JA, Beckett MB, Prediction of percent bodyfat for U.S. Navy men and women from body circumferences and height, Naval Health Research Center, reports 84-11 and 84-29, 1984
  9. Centers for Disease Control and Prevention, Steps for losing weight, 2025cdc.gov
  10. Eunice Kennedy Shriver National Institute of Child Health and Human Development (NIH), What causes amenorrhea?nichd.nih.gov
Weigh in each morning on a Withings or any Apple Health scale and Gyroscope logs your weight and bodyfat on its own, free on any plan. Open Gyroscope

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