Waist-to-hip ratio (WHR) is a key indicator of health risk that measures how fat is distributed across your body. Unlike BMI, which only considers overall weight, WHR specifically assesses visceral fat around the abdomen, the type most strongly linked to cardiovascular disease, type 2 diabetes, and metabolic syndrome. The World Health Organization uses WHR thresholds to classify health risk by gender, making it one of the most practical tools for understanding your metabolic health.
Calculate Your WHR
Measure at the narrowest point, usually just above the belly button
Measure at the widest point of your buttocks
How to Use the Waist-to-Hip Ratio Calculator
Your waist-to-hip ratio (WHR) is one of the most reliable indicators of cardiovascular and metabolic health risk. Unlike BMI, which only considers total body weight, WHR reveals how fat is distributed across your body. Carrying excess fat around your midsection (visceral fat) is strongly linked to heart disease, stroke, type 2 diabetes, and certain cancers. This calculator uses WHO guidelines to assess your risk level based on your measurements and gender.
Step 1: Select Your Gender
Choose male or female. This is important because the WHO uses different risk thresholds for each gender. Women naturally carry more fat around their hips and thighs, so their healthy WHR threshold is lower than for men.
Step 2: Choose Your Measurement Unit
Toggle between centimeters and inches using the unit switch. The ratio calculation works the same regardless of which unit you use, since both measurements are in the same unit and the ratio cancels units out.
Step 3: Measure and Enter Your Waist Circumference
Using a flexible tape measure, wrap it around your waist at the narrowest point, usually just above the belly button and below the rib cage. Stand relaxed and breathe normally. Do not suck in your stomach, as this will give an inaccurate reading. The tape should be snug but not compressing the skin. Enter the measurement into the waist field.
Step 4: Measure and Enter Your Hip Circumference
Wrap the tape measure around the widest part of your buttocks and hips. Stand with your feet together and ensure the tape is level all the way around. This measurement captures the broadest point of your lower body. Enter the value into the hip field.
Step 5: Review Your Results
Click "Calculate WHR" to see your ratio, risk category, and body shape classification. A waist-to-hip ratio result includes a color-coded gauge showing where you fall on the risk scale, whether your fat distribution is apple-shaped (higher risk) or pear-shaped (lower risk), and personalized health context explaining what your number means.
WHR vs BMI: Why Both Matter
BMI tells you if your overall weight is in a healthy range, while WHR tells you where your body stores fat. A person with a normal BMI can still have a high WHR, meaning they carry dangerous visceral fat around their organs. Research published in The Lancet found that WHR is a stronger predictor of heart attack risk than BMI alone. For a complete picture of your health, consider checking both your waist-to-hip ratio and your BMI.
Frequently Asked Questions
Is this waist-to-hip ratio calculator free?
Yes, this WHR calculator is completely free with no limits. You can calculate your waist-to-hip ratio as many times as you want. There is no signup required and everything runs locally in your browser.
Is my data safe and private?
Yes, all calculations run entirely in your browser using client-side JavaScript. Your waist and hip measurements are never sent to any server or stored remotely. Your data stays on your device at all times.
What is a healthy waist-to-hip ratio?
According to the World Health Organization, a healthy WHR is below 0.90 for men and below 0.80 for women. Ratios above these thresholds indicate increased risk for cardiovascular disease, type 2 diabetes, and other metabolic conditions.
How do I measure my waist and hips correctly?
Measure your waist at the narrowest point, usually just above the belly button, and your hips at the widest point of your buttocks. Use a flexible tape measure, keep it snug but not tight, and stand relaxed without sucking in your stomach.
Is waist-to-hip ratio better than BMI?
WHR and BMI measure different things. BMI assesses overall weight relative to height, while WHR specifically measures fat distribution. Research shows WHR is a better predictor of cardiovascular risk because it captures dangerous visceral (belly) fat that BMI can miss.
What does apple vs pear body shape mean?
An apple body shape means you carry more fat around your midsection (higher WHR), which is associated with greater health risks. A pear body shape means fat is distributed more around the hips and thighs (lower WHR), which is generally considered less risky for heart disease.
Can waist-to-hip ratio change with exercise?
Yes, regular exercise, especially cardiovascular and core-strengthening workouts, can reduce waist circumference and improve your WHR. Combined with a balanced diet, most people can meaningfully lower their WHR within a few months of consistent effort.
Does age affect waist-to-hip ratio?
Yes, WHR tends to increase with age as body fat shifts toward the abdominal area, especially after menopause in women. This is one reason why cardiovascular risk tends to increase with age. Regular exercise and healthy eating can help counteract this natural shift.