How to Use
- Measure waist
Enter your waist circumference at the narrowest point in centimeters.
- Measure hips
Enter your hip circumference at the widest point in centimeters.
- View results
See your WHR value and health risk assessment.
What is WHR (Waist-to-Hip Ratio)?
WHR (Waist-to-Hip Ratio) is your waist circumference divided by your hip circumference. It is a body-fat distribution indicator that shows where fat accumulates on your body. At the same body weight, an 'apple shape' with fat concentrated around the belly carries a different health risk than a 'pear shape' with fat stored in the hips and thighs, and WHR captures that difference in a single number.
The WHO (World Health Organization) uses WHR as a proxy for abdominal obesity (visceral fat) to assess the risk of cardiovascular disease and type 2 diabetes. Even when BMI, which only considers height and weight, is in the normal range, a high WHR can signal hidden risk, so it is best to look at both indicators together.
- Uses: supplementary health-check metric, tracking body-shape changes, gauging the effectiveness of a diet
Formula
WHR divides waist circumference by hip circumference and rounds to two decimal places.
WHR = waist (cm) / hip (cm)
Example: for a waist of 85 cm and hips of 100 cmWHR = 85 / 100 = 0.85
This value is compared against gender-specific thresholds. For a man, 0.85 is below 0.90 and counts as 'normal'; for a woman, it falls in the 0.85-0.89 range and is classified as 'overweight (increased risk)'. The same number is judged differently by gender. (Variables: waist = circumference at navel height, hip = circumference at the widest point.)