Free Tool
Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio and check your cardiovascular health risk with WHO-based thresholds. Takes 30 seconds and a measuring tape.
Waist-to-Hip Ratio Calculator
Sex
Your WHR 0.89
Low Risk
Your ratio is within the healthy range.
WHO Classification
WHR = waist (cm) ÷ hip (cm) Men: Low <0.90 │ Moderate 0.90–0.99 │ High ≥1.00 · Women: Low <0.80 │ Moderate 0.80–0.84 │ High ≥0.85 The waist-to-hip ratio (WHR) is the circumference of your waist divided by the circumference of your hips. It measures how fat is distributed on your body — specifically, the ratio of abdominal (visceral) fat to hip and gluteal fat. According to the World Health Organization, a high WHR is associated with significantly elevated cardiovascular and metabolic disease risk, independent of overall body weight.
How to Use This Calculator
1
Select your sex — WHR thresholds differ between men and women.
2
Measure your waist circumference at its narrowest point, typically just above the navel. Stand relaxed, don’t suck in.
3
Measure your hip circumference at the widest point of your hips and buttocks.
4
Enter both measurements in centimeters.
5
Your WHR and health risk category update instantly.
Why WHR Matters for Health
Body weight alone doesn’t tell the full health story. Two people can weigh the same but have very different health risks depending on where their fat is stored. Visceral fat — the fat stored around internal organs in the abdominal area — is metabolically active and strongly linked to cardiovascular disease, type 2 diabetes, and metabolic syndrome.
WHR measures this fat distribution pattern directly. It’s one of the strongest predictors of cardiometabolic risk that can be measured without any equipment beyond a simple measuring tape.
WHO Risk Thresholds
Men: Low risk: WHR < 0.90 │ Moderate risk: 0.90–0.99 │ High risk: ≥1.00
Women: Low risk: WHR < 0.80 │ Moderate risk: 0.80–0.84 │ High risk: ≥0.85
These thresholds are from the WHO’s 2008 waist circumference and waist-hip ratio report. Women have lower thresholds because they naturally carry more subcutaneous fat in the hip and thigh region, so a higher WHR indicates relatively more visceral fat in proportion.
WHR vs. BMI vs. Waist Circumference
Each measure tells a different story. BMI estimates body fat from height and weight but ignores fat distribution. Waist circumference alone measures abdominal fat but doesn’t account for body frame. WHR measures fat distribution ratio and is particularly useful for identifying “normal weight obesity” — people with a healthy BMI but dangerous visceral fat accumulation. Research suggests WHR is a better predictor of cardiovascular events than BMI for most populations.
What Improves Your WHR
Reducing visceral fat requires a combination of regular aerobic exercise, strength training, and a calorie deficit from a nutrient-dense diet. High-intensity interval training (HIIT) has been shown to be particularly effective at reducing visceral fat. Chronic stress and poor sleep also directly increase visceral fat accumulation by elevating cortisol, so addressing lifestyle factors matters as much as exercise and diet.
WHR Assessment for Personal Trainers
WHR is one of the simplest and most informative body composition assessments you can do with a client in under two minutes. It’s particularly valuable for clients who are resistant to weighing themselves or who don’t respond well to BMI-based assessments. Track WHR alongside weight and strength metrics to give clients a fuller picture of their health progress.
With Gymkee, you can run structured client assessments, track progress metrics over time, and show clients exactly how far they’ve come — building the trust and accountability that keeps them with you long-term.
Frequently Asked Questions
Where exactly do I measure my waist?
Measure at the narrowest part of your torso, usually halfway between your lowest rib and the top of your hip bone (iliac crest). For most people this is at or just above the navel. Stand relaxed and exhale normally before measuring — don’t hold your breath in.
Where do I measure my hips?
Measure at the widest point of your hips and buttocks, typically about 20–25 cm below the waist. Keep the tape measure level around the circumference.
Is WHR better than BMI?
Both have value, but WHR is generally considered a better predictor of cardiovascular disease risk than BMI because it specifically measures fat distribution rather than just total body mass relative to height. A person can have a normal BMI but a high WHR (sometimes called "normal weight obesity") — a risk pattern BMI would miss entirely.
Can I improve my WHR just through exercise?
Yes, but nutrition matters too. Aerobic exercise and HIIT are effective for reducing visceral fat. Strength training helps maintain muscle mass while you lose fat. Without a calorie deficit, exercise alone usually won’t meaningfully reduce WHR. Combine both for the fastest results.
Why are women’s WHR thresholds lower than men’s?
Women naturally carry proportionally more fat in the hips and thighs (gluteofemoral fat), which is considered metabolically protective. So a higher WHR in women indicates a greater relative accumulation of visceral abdominal fat compared to men with the same ratio. That’s why the health risk thresholds are lower for women.
Track Client Progress Beyond the Scale
Gymkee gives personal trainers the tools to run assessments, track body composition metrics, and show clients the full picture of their progress.
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