The average waist size for women varies globally, with U.S. averages around 37-39 inches (about 94-99 cm), but health guidelines define risk levels: a waist over 31.5 inches (80 cm) indicates increased health risk, and over 35 inches (88 cm) signals a substantially increased risk for chronic diseases like heart disease and Type 2 diabetes.
In general, keep waist circumference to less than half your height. For example, for a 6-foot man (72 inches), a healthy waist size would be anything less than 36 inches. For a 5-foot-2 woman (62 inches), a healthy waist size would be anything less than 31 inches.
In 2022, the average waist measurement for adults was 95.1cm (99.3cm for males and 91.0cm for females). More than two in three (67.9%) adults had measured waist circumference that put them at an increased risk of disease. This has increased from six in ten (62.9%) adults in 2011–12.
So at 27 in, you fall in the standard of having a very small waist! WebMD advises that the ideal waist size for a woman to have to be considered a low risk for heart disease and other ailments is less than 35 inches circumference, so you are in good health by that standard as well.
Waist circumference and health risks
These are the waist circumference numbers that can show you have an increased risk of disease: If you are an adult female: your risk is increased if your waist measurement is 80cm or more. your risk is greatly increased if your waist measurement is 88cm or more.
Women with a waist measurement of more than 35 inches or men with a waist measurement of more than 40 inches may have a higher disease risk than people with smaller waist measurements because of where their fat lies. Excess weight, as measured by BMI, is not the only risk to your health.
From a health perspective, waist size also reflects the risk of obesity-related diseases like heart disease and diabetes. According to the World Health Organization (WHO): Thus, a 70cm waistline is still within the healthy range. However, what matters more is the amount of fat accumulated in the abdominal area.
For your appearance, a waist circumference of anywhere from 0.4–0.5 times your height will look great, and being on the narrower side might be slightly more attractive. What matters more, though, is the ratio between your waist circumference and hip circumference (study).
Requirements for Fit Models
Ideal measurements can vary greatly from brand to brand; however, here are some general guidelines: Women: Bust: 34-35 inches | Waist: 26-27 inches | Hips: 36-37 inches. Men: Chest: 38-40 inches | Waist: 32-34 inches | Inseam: 32-34 inches.
Causes of a High Waist Circumference
A larger waist circumference is often caused by intra-abdominal visceral fat. Visceral fat is fat that develops between and around internal organs. This type of fat differs from "regular" fat that sits just beneath the skin and can be pinched.
In Australia, a size 12 is generally considered a "straight" or "missy" size, falling within average ranges, but due to vanity sizing and inconsistent measurements across brands, it can represent different body sizes; health-wise, a larger waist (over 88cm for women) is a risk factor, and the actual average Australian woman is now closer to a size 16-18, meaning a size 12 is smaller than average, though "fat" is a subjective term related to body image and health metrics like BMI, not just a single number.
A combination of things happens as we age. We tend to lose muscle mass, so our abdominal muscles aren't as tight as they once were, and the loss of elastin and collagen in our skin allows gravity to have its way so skin starts to sag. Both can cause the waistline to expand.
A 70kg woman usually falls into a Medium (M) to Large (L) dress size, depending heavily on height, body proportions (bust, waist, hips), and the specific brand's sizing, with some charts placing 70kg at the upper end of Medium and others at the lower end of Large. For example, some guides link 70kg with a Medium, while others connect it to a Large, so checking the brand's specific size chart with your measurements (bust, waist, hips) is crucial.
Reducing your waist circumference by 4 cm can have massive benefits to your risk profile and reduce your chances of developing diabetes, heart disease and stroke.
What is a healthy waist size? This all depends on your gender and ethnicity. For a healthy measurement you need to aim to be less than: 80cm (31.5in) for all women.
A waist circumference of greater than 40 inches for men and greater than 35 inches for women is "considered elevated and indicative of increased cardiometabolic (heart disease-related) risk," said Craig Peters, DO, an HonorHealth cardiologist.
Your waist-to-hip ratio might give you a better picture of your health than your weight or your BMI. You can be at a healthy weight but have too much fat around your midsection. A good rule of thumb is that your waist should be smaller than your hips, no matter your weight or BMI.
The ideal waist size for Women is considered to be between 32.5-35 inches. 2. BMI (Body Mass Index) – This is calculated by diving your body mass by your height. A healthy BMI ranges from 18.5 to 24.9.
Losing weight does not always equate to losing inches, and you may need to lose several pounds before you start to see a smaller waist. Waist circumference is the best indicator of health and how much abdominal fat you have. However in general, you need to lose about 4 to 5 pounds to drop an inch around your waist.
Look for tops that hit right around your hipbone or a little longer: (The petite department can be a solution for tops sometimes.) Hip length jackets and sweaters are also a better length than the cropped or waist length versions. Again, we simply want to visually lengthen your torso.
Scientific evidence seemingly corroborates this view; just a few months ago, the largest study to date on this topic reported that waist circumference is more positively associated with mortality than is BMI (7).