Printed on 3/17/2026
For informational purposes only. This is not medical advice.
Waist-to-hip ratio (WHR) is a measurement that compares the circumference of your waist to your hips. It is used by the World Health Organization as an indicator of cardiovascular risk and central obesity. A higher ratio indicates more abdominal fat, which is associated with increased risk of heart disease, type 2 diabetes, and other health conditions.
Formula: WHR = Waist Circumference / Hip Circumference
Wrap a tape measure around your waist at the narrowest point — usually at or just above the navel. Stand relaxed after a normal exhale. Record in cm.
Measure at the widest point of your hips and buttocks. Keep the tape parallel to the floor. Record in cm.
The calculator divides waist by hip measurement and compares your ratio to WHO risk thresholds. See whether you fall in low, moderate, or high-risk categories.
Primary care physicians, cardiologists
WHR is a validated predictor of cardiovascular events. The INTERHEART study found WHR was more strongly associated with myocardial infarction risk than BMI across 52 countries.
Endocrinologists, internists
Central obesity (high WHR) is a component of metabolic syndrome criteria. WHR helps identify patients at risk for insulin resistance, dyslipidemia, and hypertension.
Epidemiologists, researchers
WHR is used in population health studies to track trends in central obesity across demographics. It's included in WHO STEPS and national health surveys.
Personal trainers, fitness enthusiasts
Track changes in body shape during exercise programs. WHR can improve even when scale weight stays the same — reflecting reduced abdominal fat with maintained muscle.
Dietitians, weight loss programs
Set body composition goals beyond weight loss. Targeting WHR reduction encourages focus on abdominal fat, which is most metabolically harmful.
Health-conscious individuals
Quick, free self-assessment requiring only a tape measure. Track your WHR monthly alongside blood pressure and weight for a comprehensive health picture.
Different protocols use different waist landmarks (narrowest point, navel level, or midpoint between ribs and iliac crest). Pick one method and use it consistently for accurate tracking.
Measure after a normal exhale in a relaxed standing position. Holding your breath or contracting your abs will artificially reduce your waist measurement.
The tape should be parallel to the floor and touch the skin without compressing it. Tilted or loose tape introduces measurement error.
Two people with identical body fat percentage can have very different WHR values. High WHR indicates 'apple-shaped' distribution (abdominal fat); low WHR indicates 'pear-shaped' distribution.
Some ethnic groups (South Asian, for example) have higher metabolic risk at lower WHR thresholds. The standard WHO cutoffs may underestimate risk in these populations.
[Waist-to-height ratio](/tools/waist-to-height-ratio) (keep waist under half your height) is an even simpler metric that strongly predicts cardiometabolic risk. Using both provides complementary information.
Resistance training that builds glute and thigh muscle can increase hip circumference while reducing waist, improving WHR even if total weight stays constant.
Day-to-day variation from bloating and measurement technique is normal. Meaningful changes in WHR happen over weeks to months with sustained dietary and exercise interventions.
Women naturally store more fat in hips and thighs (gynoid distribution), resulting in lower WHR. The same WHR value means different things for men vs. women.
A high WHR is a risk indicator, not a diagnosis. It should prompt discussion with a healthcare provider about cardiovascular risk factors, blood work, and lifestyle modifications.
WHO established WHR thresholds (>0.90 men, >0.85 women) as indicators of substantially increased health risk based on epidemiological evidence linking central obesity to cardiovascular disease (WHO Technical Report Series 894, 2000). The INTERHEART study (Lancet 2005) found WHR was more strongly associated with myocardial infarction risk than BMI across 52 countries.
Your waist-to-hip ratio (WHR) is interpreted using WHO thresholds that differ by sex. For men, a WHR below 0.90 indicates low cardiovascular risk, while 0.90–0.99 suggests moderate risk and 1.0 or above indicates substantially increased risk. For women, a WHR below 0.80 is low risk, 0.80–0.84 is moderate, and 0.85 or above signals substantially increased risk of cardiovascular disease, type 2 diabetes, and metabolic syndrome.
A higher WHR indicates a greater proportion of fat stored around the abdomen (apple-shaped body) compared to the hips and thighs (pear-shaped body). Abdominal or visceral fat is more metabolically active and secretes inflammatory cytokines that contribute to insulin resistance, dyslipidemia, and atherosclerosis. This is why WHR is a stronger predictor of cardiovascular events than overall body weight in many studies.
Use this calculator as a complement to BMI when assessing cardiovascular and metabolic risk. WHR is particularly valuable in cases where BMI may be misleading — for instance, in individuals who are of normal weight by BMI but carry excess abdominal fat (sometimes called metabolically obese normal weight, or MONW). It is also useful for patients who are overweight by BMI but carry fat predominantly in their hips and thighs, which carries less cardiovascular risk.
Clinicians frequently use WHR in metabolic syndrome screening, diabetes risk assessment, and cardiovascular disease prevention programs. It is also a practical tool for tracking the effectiveness of exercise programs that target visceral fat reduction, as WHR may improve even when overall weight remains stable.
WHR does not measure visceral fat directly — it infers fat distribution from external circumference measurements. Two individuals with the same WHR may have different amounts of visceral versus subcutaneous abdominal fat. For direct visceral fat quantification, imaging methods such as CT or MRI are required.
Measurement technique matters significantly. The waist should be measured at the narrowest point between the ribs and the iliac crest (or at the navel level, depending on the protocol used), and the hips at the widest point of the buttocks. Inconsistent landmarking can produce unreliable results. Additionally, WHR does not account for overall body size — a very thin person and a very heavy person could have the same ratio despite vastly different health profiles. For this reason, WHR is best used alongside other metrics such as BMI, waist circumference alone, and body fat percentage.
Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.
Calculate your body fat percentage using the U.S. Navy method. Enter your measurements to estimate body fat and understand your fitness category.
Body MetricsCalculate your Body Mass Index (BMI) instantly using height and weight. Free, WHO-validated formula with personalized health category insights for adults.
Body MetricsCalculate your waist-to-height ratio (WHtR) to screen for cardiometabolic risk. A simple metric where keeping your waist under half your height is often recommended.
CardiologyCalculate 10-year ASCVD risk using current 2026 ACC/AHA Pooled Cohort Equations. Statin thresholds: <5% low, 5–7.5% borderline, ≥7.5% intermediate, ≥20% high.