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Waist-to-Hip Ratio Calculator

Calculate your waist-to-hip ratio (WHR) and assess your cardiovascular health risk based on WHO guidelines.

Units
Sex

Your Results

Your WHR
Enter your waist and hip circumference above
Low Risk
< 0.90
Moderate
0.90–0.99
High Risk
≥ 1.00
Risk Category
based on WHO guidelines
Your Waist
cm
Your Hips
cm

Your waist-to-hip ratio is a key indicator of how fat is distributed across your body. Central (abdominal) fat is strongly linked to cardiovascular disease, type 2 diabetes, and metabolic syndrome.

What Is Waist-to-Hip Ratio?

Waist-to-hip ratio (WHR) is a simple measurement that compares the circumference of your waist to that of your hips. It reveals how fat is distributed across your body — specifically whether you carry more fat around your midsection (apple shape) or around your hips and thighs (pear shape).

WHR is considered a better predictor of cardiovascular risk than BMI alone, because it specifically measures central (visceral) fat — the type of fat that surrounds your organs and drives inflammation, insulin resistance, and heart disease.

  • Apple shape (high WHR) — Fat concentrated around the abdomen. Associated with higher risk of heart disease, type 2 diabetes, and metabolic syndrome.
  • Pear shape (low WHR) — Fat concentrated around hips and thighs. Generally associated with lower cardiovascular risk.
  • Simple formula — WHR = waist circumference ÷ hip circumference. No complex math or additional measurements needed.
Landmark study: A 2005 study by Yusuf et al. (The Lancet) involving 27,000 participants across 52 countries found that waist-to-hip ratio was a stronger predictor of heart attack risk than BMI. People with the highest WHR had 2.5× the risk compared to those with the lowest.

WHR Health Risk Classifications

The World Health Organization (WHO) defines the following waist-to-hip ratio thresholds for assessing health risk. Note that thresholds differ between men and women due to natural differences in fat distribution.

Risk LevelMenWomenHealth Implications
Low< 0.90< 0.80Lower cardiovascular risk
Moderate0.90 – 0.990.80 – 0.85Increased risk of metabolic syndrome
High≥ 1.00> 0.85Significantly elevated risk of heart disease, diabetes

How to Measure Correctly

Accurate measurements are critical for a meaningful WHR result. Small errors in waist or hip circumference can shift your ratio significantly. Follow these guidelines for the most reliable readings:

  • Waist measurement — Measure at the narrowest point of your torso, typically at or just above the navel. Stand upright, breathe normally — do not suck in your stomach.
  • Hip measurement — Measure at the widest point of your buttocks. Stand with feet together and weight evenly distributed.
  • Use a flexible tape measure — Keep it level all the way around. It should be snug against the skin without compressing it.
  • Measure on bare skin or light clothing — Bulky clothes can add centimeters and skew your results.
  • Take 2–3 measurements and average them — This reduces the impact of any single measurement error.
Pro tip: Measure first thing in the morning before eating for the most consistent results. Waist measurements can vary by 2–3 cm throughout the day due to food, water retention, and bloating.

How to Improve Your WHR

Improving your waist-to-hip ratio means reducing abdominal fat, building hip/glute musculature, or both. Here are the most effective strategies backed by research:

  • Calorie deficit — The foundation of all fat loss. You cannot spot-reduce belly fat, but a consistent calorie deficit will reduce overall body fat, with visceral fat often being the first to go.
  • HIIT and cardio — High-intensity interval training has been shown to be particularly effective at reducing visceral (abdominal) fat compared to steady-state cardio.
  • Strength training — Building glute and hip muscles improves your WHR from both ends — a larger hip circumference with a smaller waist shifts the ratio favorably.
  • Stress management — Chronic stress elevates cortisol, which promotes fat storage specifically in the abdominal area. Meditation, sleep, and exercise all help lower cortisol.
  • Adequate sleep — Poor sleep (under 7 hours) is associated with increased visceral fat accumulation and higher cortisol levels. Prioritize 7–9 hours per night.
  • Limit alcohol — “Beer belly” is real. Alcohol promotes abdominal fat storage through multiple mechanisms: excess calories, impaired fat oxidation, and increased cortisol production.
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