Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio (WHR) and assess your body fat distribution and cardiovascular health risk using World Health Organization standards.
Your Measurements
Results update automatically as you type.
Measure at the narrowest part of your torso, ~1 inch above navel.
Measure at the widest point of your hips and buttocks.
Enter your measurements
Your WHR and health risk category appear instantly
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The waist-to-hip ratio (WHR) calculator uses the World Health Organization (WHO) classification thresholds to assess your fat distribution pattern and associated health risk. WHR is calculated by dividing your waist circumference by your hip circumference. The result classifies you as low, moderate, or high risk for cardiovascular disease and metabolic syndrome.
WHO WHR Classification
| Risk Level | Women (WHR) | Men (WHR) |
|---|---|---|
| Low risk | < 0.80 | < 0.90 |
| Moderate risk | 0.80–0.84 | 0.90–0.99 |
| High risk | ≥ 0.85 | ≥ 1.00 |
Why Fat Distribution Matters More Than Total Weight
Where you store fat matters more for health outcomes than how much total fat you carry. Visceral fat — the fat stored around internal organs in the abdominal cavity — is metabolically active tissue that secretes hormones and inflammatory substances linked to:
- Insulin resistance and type 2 diabetes
- Elevated LDL cholesterol and triglycerides
- Cardiovascular disease and hypertension
- Non-alcoholic fatty liver disease (NAFLD)
- Certain cancers (colorectal, pancreatic, endometrial)
Subcutaneous fat in the hips, thighs, and buttocks (pear shape) is less metabolically active and associated with lower risk. In fact, hip and thigh fat in women may have protective metabolic effects according to some research.
How to Reduce Waist-to-Hip Ratio
- Calorie deficit: Overall fat loss is the most effective way to reduce visceral fat. Visceral fat is often lost preferentially with a moderate calorie deficit.
- Resistance training: Building muscle increases resting metabolism and improves insulin sensitivity, reducing visceral fat accumulation.
- Reduce alcohol: Alcohol disproportionately promotes visceral fat storage, particularly from beer and spirits.
- Lower cortisol: Chronic stress elevates cortisol, which drives visceral fat storage. Sleep optimization, stress management, and avoiding overtraining help.
- Increase fiber: Soluble fiber reduces visceral fat independently of calorie intake by improving gut microbiome and insulin sensitivity.
Frequently Asked Questions
Waist-to-hip ratio (WHR) is the ratio of waist circumference to hip circumference (WHR = waist ÷ hips). It is used to assess fat distribution and the associated health risks. Excess fat stored around the waist (central/visceral obesity) is more metabolically harmful than fat stored around the hips and thighs. The WHO uses WHR as a key indicator of cardiovascular and metabolic disease risk.
According to the World Health Organization (WHO): For men, a WHR below 0.90 is considered low risk; 0.90–0.99 is moderate risk; 1.00 or above is high risk. For women, a WHR below 0.80 is low risk; 0.80–0.84 is moderate risk; 0.85 or above is high risk. These thresholds reflect the increased cardiovascular and metabolic risk associated with central obesity.
Research suggests WHR is a better predictor of cardiovascular disease and mortality than BMI, because it specifically captures fat distribution rather than total body weight. A person with a normal BMI but high WHR (central obesity) is at elevated cardiovascular risk — a pattern that BMI alone cannot detect. WHR is particularly useful when used alongside BMI and body fat percentage for a complete picture.
Apple-shaped bodies carry more fat around the abdomen (high WHR), while pear-shaped bodies carry more fat around the hips and thighs (low WHR). Visceral fat (the fat surrounding internal organs in apple-shaped bodies) is metabolically active and produces inflammatory cytokines that raise cardiovascular disease, type 2 diabetes, and certain cancer risks. Subcutaneous fat in hips and thighs is less metabolically harmful and may even have protective effects in some studies.
Waist: Stand relaxed (do not suck in). Measure at the narrowest point of your torso, typically about 1 inch above your belly button. The tape should be snug but not compressing the skin. Hip: Measure at the widest point of your hips and buttocks. Keep the tape parallel to the floor. Take both measurements first thing in the morning before eating for the most consistent results.
Yes — WHR can be reduced by losing abdominal fat through a combination of calorie deficit, high-protein diet, resistance training, and cardiovascular exercise. Visceral (abdominal) fat is actually more responsive to diet and exercise than subcutaneous fat. Studies show that even a 5–10% reduction in body weight significantly reduces waist circumference and WHR in overweight individuals. Reducing alcohol consumption (which preferentially promotes visceral fat) is also effective.
Yes — WHR tends to increase with age in both men and women, driven by hormonal changes that shift fat storage toward the abdomen. In women, menopause is particularly associated with increased abdominal fat as estrogen levels drop. In men, declining testosterone levels with age promote visceral fat accumulation. Maintaining muscle mass through resistance training and staying physically active are the most effective strategies for limiting this age-related WHR increase.