Find your WHR and understand your cardiovascular health risk in seconds.
Please enter a valid waist measurement.
Measure at the narrowest point
Please enter a valid hip measurement.
Measure at the widest point
Your Results
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Waist-to-Hip Ratio
Where you fall on the scale:
Measurement
Value
⚕️ Disclaimer: This tool is for informational purposes only. Consult a healthcare professional for medical advice and a comprehensive health assessment.
How to Use This Waist-to-Hip Ratio Calculator
Select your unit system (cm or inches), choose your biological sex, then enter your waist circumference — measured at the narrowest point of your torso — and your hip circumference, measured at the widest point of your hips/buttocks. Click "Calculate" to see your ratio and health risk category instantly.
Why This Matters
The waist-to-hip ratio (WHR) is one of the most reliable indicators of abdominal obesity and associated cardiovascular disease risk. Unlike BMI, which only considers total body weight, WHR pinpoints where your body stores fat — a critical distinction because fat concentrated around the abdomen (visceral fat) poses far greater health risks than fat stored around the hips and thighs.
The World Health Organization (WHO) considers a WHR above 0.90 for men and 0.85 for women to indicate abdominal obesity. Studies consistently show that people with "apple-shaped" bodies (more fat around the waist) face significantly higher risks of type 2 diabetes, heart disease, and hypertension compared to "pear-shaped" individuals with the same BMI.
For example, a woman with a 32-inch waist and 40-inch hips has a WHR of 0.80 — firmly in the healthy range. But if her waist increases to 36 inches with the same hips, her WHR jumps to 0.90, crossing into the high-risk zone. That seemingly small difference of 4 inches can meaningfully shift her long-term health trajectory.
Athletes, older adults, and postpartum women especially benefit from tracking WHR over time as a supplement to weight-based metrics.
How It's Calculated
The formula is elegantly simple:
WHR = Waist Circumference ÷ Hip Circumference
Both measurements must be in the same unit (both cm or both inches). The resulting dimensionless number is then compared against WHO-established thresholds that differ by sex:
Category
Women (WHR)
Men (WHR)
Risk Level
Low Risk
≤ 0.80
≤ 0.90
Healthy
Moderate Risk
0.81 – 0.85
0.91 – 0.95
Caution
High Risk
0.86 – 0.90
0.96 – 1.00
At Risk
Very High Risk
> 0.90
> 1.00
High Risk
Tips & Common Mistakes
Measure consistently: Always measure on bare skin, not over clothing. Even thin fabric can add 1–2 cm and skew your ratio.
Waist ≠ belt line: Your waist measurement should be at the natural waist — the narrowest part between your ribcage and navel — not where your pants sit.
Don't suck in: Measure while standing relaxed and exhaling normally. Holding your breath creates an artificially lower reading.
Hips = widest point: For the hip measurement, wrap the tape around the fullest part of your buttocks and hips, keeping it parallel to the floor.
Track trends, not just snapshots: WHR fluctuates slightly day-to-day. Measure weekly at the same time of day (morning, before eating) for meaningful comparisons.
Frequently Asked Questions
Is WHR more accurate than BMI?
WHR and BMI measure different things and are best used together. BMI is a general measure of body mass relative to height, while WHR specifically assesses fat distribution — particularly abdominal fat. Research published in The Lancet found WHR to be a stronger predictor of heart attack risk than BMI alone. Using both gives a more complete picture of your health.
Can WHR be used for children or teenagers?
The standard WHO thresholds were developed for adults. For children and adolescents, waist-to-height ratio is generally considered more appropriate, and reference ranges vary significantly by age and sex. If you're assessing a child's health metrics, consult a pediatric healthcare provider rather than using adult WHR standards.
My ratio looks unhealthy — what should I do?
A high WHR suggests excess abdominal fat, which typically responds well to a combination of moderate aerobic exercise (e.g., 150 minutes/week of brisk walking), resistance training, and a diet lower in refined carbohydrates and added sugars. That said, always consult a doctor before making significant lifestyle changes, especially if you have existing health conditions.
How often should I measure my WHR?
For tracking purposes, measuring once every 4–6 weeks is typically sufficient to observe meaningful changes. More frequent measurement isn't harmful, but day-to-day variation (from water retention, digestion, etc.) can be misleading. Taking 3 readings in a session and averaging them reduces measurement error.