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Waist-to-Hip Ratio Calculator

Enter your waist and hip measurements in centimeters, then select your biological sex. The calculator shows your WHR and your cardiovascular health risk category.

Female

Waist-to-Hip Ratio (WHR)

Moderate health risk (Female: WHR 0.80–0.84)

What Is Waist-to-Hip Ratio?

Your waist-to-hip ratio (WHR) measures the proportion of fat stored around your waist compared to your hips. It is one of the most clinically validated indicators of cardiovascular disease risk, type 2 diabetes risk, and overall metabolic health — often more predictive than BMI alone.

The calculation is simple:

WHR = Waist Circumference ÷ Hip Circumference

Both measurements should be in the same unit (cm or inches).

Worked Example

  • Waist: 82 cm, Hip: 98 cm
  • WHR = 82 ÷ 98 = 0.84
  • For a woman: Moderate risk (0.80–0.85 range)
  • For a man: Low risk (below 0.90)

How to Measure Correctly

Accuracy matters. Follow these measurement guidelines:

Waist measurement:

  1. Stand relaxed — do not suck in
  2. Measure at the narrowest point of the torso, usually halfway between the bottom rib and the top of the hip bone (iliac crest)
  3. The tape should be snug but not compressing the skin
  4. Measure at the end of a normal exhale

Hip measurement:

  1. Measure at the widest point of the hips/buttocks
  2. Keep the tape parallel to the floor
  3. Measure over light clothing or bare skin

WHO Risk Classification

The World Health Organization (WHO) defines these risk thresholds:

SexLow Risk (WHR)Moderate Risk (WHR)High Risk (WHR)
MaleBelow 0.900.90–0.991.00 and above
FemaleBelow 0.800.80–0.840.85 and above

Why WHR Is Important

Fat distribution matters more than total body fat for health outcomes. Visceral fat (fat stored around the abdomen and internal organs) is metabolically active and releases inflammatory hormones linked to:

  • Cardiovascular disease — people with apple-shaped fat distribution have higher risk of heart attack and stroke
  • Type 2 diabetes — visceral fat interferes with insulin sensitivity
  • Hypertension — abdominal obesity is strongly linked to elevated blood pressure
  • Metabolic syndrome — a cluster of conditions including high blood sugar, high cholesterol, and high blood pressure

People with pear-shaped distribution (fat concentrated at hips and thighs) generally have better metabolic health outcomes than apple-shaped individuals at the same BMI.

WHR vs. BMI vs. Waist Circumference

MetricWhat It MeasuresStrengthsLimitations
BMIWeight relative to heightSimple, widely usedIgnores fat distribution, muscle mass
Waist circumferenceAbsolute abdominal sizeStrong predictor of metabolic riskDoes not account for body size
WHRFat distribution ratioAccounts for body frame; strong CVD predictorDoes not reflect total fat percentage
Body fat %Proportion of fat massMost complete pictureRequires special equipment (DEXA, BodPod)

Using WHR alongside BMI gives a more complete picture of health risk than either metric alone.

Frequently Asked Questions

Is WHR more accurate than BMI for predicting health risk?

For cardiovascular disease and diabetes risk specifically, WHR is often a stronger predictor than BMI because it captures fat distribution rather than just total mass. A person can have a healthy BMI but an unhealthy WHR if they carry excess abdominal fat.

Can I reduce my waist-to-hip ratio?

Yes. WHR responds to lifestyle changes. Reducing visceral fat through caloric deficit, regular aerobic exercise (150+ minutes per week), and strength training all decrease waist circumference. Building glute and hip muscle can modestly increase hip measurements. Spot reduction of belly fat is not possible.

Does WHR differ by ethnicity?

Yes. Some studies suggest that Asian populations have higher health risks at lower WHR values compared to European populations. Some guidelines suggest a lower risk threshold (WHR above 0.80 for Asian men) due to different fat distribution patterns at equivalent BMIs.

How does age affect WHR?

WHR tends to increase with age as fat redistributes from the limbs to the abdomen, particularly after menopause in women. This age-related increase partly explains why cardiovascular risk rises with age regardless of total weight.

Should I track WHR or waist circumference?

Both provide useful information. Waist circumference alone is a strong predictor: WHO thresholds are over 88 cm (35 inches) for women and over 102 cm (40 inches) for men. Tracking both WHR and waist circumference over time gives the clearest picture of progress.

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