Waist to Hip Ratio Calculator
Calculate your waist-to-hip ratio (WHR), a measure of body fat distribution. WHR is a strong predictor of cardiovascular and metabolic disease risk — often better than BMI alone.
WHR risk categories (WHO standards)
| Risk category | Men (WHR) | Women (WHR) |
|---|---|---|
| Lower risk | Below 0.90 | Below 0.80 |
| Moderate risk | 0.90 to 0.99 | 0.80 to 0.84 |
| High risk | 1.00 or higher | 0.85 or higher |
Source: World Health Organization (WHO) Expert Consultation on Waist Circumference and Waist-Hip Ratio.
Why WHR matters
WHR captures something BMI doesn't: where your body stores fat. Two people with identical BMI can have very different health risks based on fat distribution:
- Apple shape (high WHR): Fat concentrated in the abdomen. Associated with higher visceral fat, which surrounds organs and produces inflammatory hormones. Linked to type 2 diabetes, cardiovascular disease, and metabolic syndrome.
- Pear shape (low WHR): Fat concentrated in hips and thighs (subcutaneous fat). Lower metabolic risk; this fat is actually protective against insulin resistance in some studies.
A large meta-analysis (BMJ, 2020) found WHR to be a stronger predictor of all-cause mortality than BMI across populations.
How to measure correctly
- Stand naturally — don't suck in your stomach
- Use a flexible tape measure (cloth or vinyl, not metal)
- Waist: at the narrowest point between your ribs and hip bone (usually just above the belly button)
- Hips: at the widest part of your buttocks/hip area
- Tape parallel to the floor, not twisted
- Exhale normally before reading
- Measure 2-3 times and use the average
FAQs
What is waist-to-hip ratio?
Waist-to-hip ratio (WHR) is your waist circumference divided by your hip circumference. It's a simple measure of body fat distribution. A higher WHR indicates more abdominal (visceral) fat, which is associated with greater cardiovascular and metabolic disease risk than fat carried in the hips/thighs.
How is WHR measured?
Use a flexible tape measure. Waist: measure at the narrowest point between your ribs and hip bone (typically just above the belly button). Hips: measure at the widest part of your buttocks. Both measurements should be taken standing, exhaling normally, with the tape parallel to the floor. Divide waist by hips to get WHR.
What's a healthy WHR for men and women?
Per WHO guidelines: Men: <0.90 = lower risk, 0.90-0.99 = moderate, ≥1.00 = high risk. Women: <0.80 = lower risk, 0.80-0.84 = moderate, ≥0.85 = high risk. These thresholds correlate with risk for type 2 diabetes, cardiovascular disease, and metabolic syndrome.
Is WHR better than BMI?
WHR and BMI measure different things. BMI measures total body mass relative to height; WHR measures fat distribution. WHR is generally a better predictor of cardiovascular disease and diabetes risk because abdominal fat is metabolically more dangerous than fat in the hips/thighs. Many doctors use both metrics together.
How accurate is the waist-to-hip ratio?
WHR is a reasonable proxy for visceral (deep abdominal) fat — the most dangerous type — but isn't a direct measure. The most accurate measurement is DEXA scan or CT/MRI imaging, but those aren't accessible for most people. WHR is fast, free, and reliable enough to detect significant health risk patterns.
Can I lower my WHR through exercise?
Yes. Aerobic exercise (running, cycling, swimming) combined with strength training reduces visceral fat (waist) more effectively than diet alone. Reducing alcohol intake, managing stress (cortisol promotes abdominal fat), and improving sleep also lower WHR. Spot reduction (targeted exercises like crunches) does NOT preferentially burn belly fat — overall fat loss does.
Does WHR change with age?
Yes — WHR tends to increase with age as muscle mass declines and body composition shifts. Hormonal changes (menopause for women, declining testosterone for men) also redistribute fat toward the abdomen. Maintaining a stable WHR across decades is a strong marker of long-term metabolic health.
Is WHR or waist circumference alone better?
Waist circumference alone is also a strong predictor (men >40 inches / women >35 inches = elevated risk). Some researchers prefer it over WHR because hip measurement can vary based on muscle vs. fat composition. Both metrics are valid; many doctors use waist circumference as a quick screen and WHR for more detail.