Waist circumference: what it can tell you about your health

There’s a lot of information out there that makes it complicated to gauge our wellness, risk of certain conditions, and any progress we’ve made to improve our health. 

One trick to get a quick snapshot of your overall health is measuring waist circumference. You can do this any time, any day, from the comfort of your home with a cheap tool that you can order online. Here’s what you need to know about measuring your waist circumference and what it can tell you about your health.

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All you need to figure out your waist circumference is a flexible tape measure. If you have one at home, you’re good to go, or you can order a sewing tape measure for a couple of dollars online.

To get your waist measurement:

1. Make sure you measure without a shirt on so the results are more accurate.

2. Wrap the tape measure around the smallest part of your waist, which is usually slightly above the belly button.

3. Check to ensure the tape measure is resting flat against your stomach and not pinching or forming a dent in your skin.

4. Take a normal breath in. Check the tape measure after you fully exhale.

To get the most accurate measurement possible, do it before eating in the morning and after going to the bathroom. Be mindful and make sure you’re not sucking in your stomach when you check the measuring tape, which could affect results.

It seems simple, but measuring your waist circumference can help assess your risk for certain health conditions. The only issue is it doesn’t provide specifics about our health. 

For example, waist measurements can show us whether we hold fat on our stomachs, hips, and thighs but can’t tell us our exact body fat percentage.

Being able to identify where your body tends to store fat tissue can provide some information about our overall health.

Waist circumference vs. BMI

Waist circumference measurements can also give insight into cardiovascular and metabolic health risks that body mass index (BMI) does not (Ross, 2020).

Even though many healthcare providers and researchers more commonly use BMI, waist circumference can give a more accurate picture of your risk for high blood pressure, diabetes, and high cholesterol levels. One problem with BMI is a person can have a normal score but still be at risk for certain health problems. 

For example, a person can be a regular bodyweight but have far more abdominal fat than hip or glute fat. This means someone could have a “normal” BMI but still be at risk for medical problems due to how they hold fat tissue, which would only be caught by measuring waist circumference (Khanna, 2021).

The opposite can also be true—because muscle weighs more than fat, a very muscular person may have a high BMI yet not be at risk for obesity or other health concerns. Waist circumference helps to account for these problems by showing where body fat is likely stored, an important metric because, as we’ll discuss below, storing fat in the abdomen puts one at risk for multiple health conditions. 

A higher waist circumference can be a predictor of certain health risks like type 2 diabetes, hypertension, and plaque buildup in arteries (atherosclerosis). Waist circumference can also be used with hip measurements to calculate your waist-to-hip ratio (Lotta, 2018).

Abdominal fat is also associated with insulin resistance in people who don’t have type 2 diabetes. In men, subcutaneous fat (fat that sits under the skin that you can pinch) and visceral fat (this type—also called intra-abdominal fat—is located behind your belly and surrounds other organs) were associated with insulin resistance. In women, this health risk is more closely linked to visceral fat (de Mutsert, 2018).

Once you have your waist measurement, you can compare it to standardized charts like the example below.

Waist circumferences above these increased numbers are most closely associated with metabolic syndrome, a cluster of health conditions that ups the risk for chronic medical issues like heart disease. 

A person is considered to have an increased metabolic risk if they have three of the following (Swarup, 2021):

• Waist circumference above 40 inches for men or 35 inches for women

• Higher triglyceride (a type of fat) levels

• Lower “good” (HDL) cholesterol levels 

• Elevated fasting blood sugar (a blood test showing your glucose is high even when you haven’t eaten)

• Increased blood pressure

This chart doesn’t apply to everyone, however. You shouldn’t compare numbers if you’re pregnant or have recently given birth. Researchers have also found that this chart may not be accurate for people of Asian descent, who may require lower measurements to determine risk (Ponnalagu, 2016).

Losing weight through a healthy diet and regular exercise can reduce your waist circumference. This, in turn, helps prevent health issues like hypertension (high blood pressure), cardiovascular disease, and type 2 diabetes. 

You don’t need to worry too much about choosing the “right” diet either. Research has found the most effective eating habits create a modest calorie deficit. Low-carb and reduced-fat diets can be equally effective for weight loss. 

Upping your protein intake (which is sometimes touted as a weight-loss hack) doesn’t necessarily speed weight loss in everyone, so don’t feel pressure to cut out fat, carbs, or force more protein into your diet (Gardner, 2018; Witjaksono, 2018). Eating a balanced diet of minimally processed, nutritious foods is the surest way of reaching a healthy weight. 

If you’re losing weight but haven’t seen your waist measurement go down yet, don’t fret. It can be a slow process, and you can’t control where weight comes off your body first. Just remember that if you’re eating a healthy, diverse diet and are keeping physically active, you’re still reaping the health benefits, even if inches off your waist comes last. 

It may be helpful to pair waist measurements with how much you weigh on a scale to judge your progress. If using a scale is triggering for you or leads to mental or emotional distress, you can take measurements of your hips, chest, arms, or thighs to track your progress instead.

It’s also important to remember that many different body shapes and sizes are healthy. There’s no one-size-fits-all when it comes to your health. What works for someone else may not be right for you, so try not to compare your progress to anyone else.

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How we reviewed this article

Every article on Health Guide goes through rigorous fact-checking by our team of medical reviewers. Our reviewers are trained medical professionals who ensure each article contains the most up-to-date information, and that medical details have been correctly interpreted by the writer.

Current version

March 28, 2022

Written by

Linnea Zielinski

Fact checked by

Steve Silvestro, MD

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About the medical reviewer

Steve Silvestro, MD, Ro

Dr. Steve Silvestro is a board-certified pediatrician and Associate Director, Clinical Content & Education at Ro.