What Is Waist-to-Hip Ratio?
Waist-to-hip ratio (WHR) is calculated by dividing your waist circumference by your hip circumference. It measures how body fat is distributed between your midsection and hips. A higher ratio indicates more abdominal fat, which is associated with greater health risks. The WHO adopted WHR as a key indicator of metabolic health in addition to BMI.
WHO Risk Classification Thresholds
The World Health Organization defines gender-specific WHR thresholds. For men: below 0.90 is low risk, 0.90 to 0.95 is moderate, and above 0.95 is high risk. For women: below 0.80 is low risk, 0.80 to 0.85 is moderate, and above 0.85 is high risk. These cutoffs are based on large epidemiological studies linking abdominal obesity to cardiovascular disease.
WHR vs BMI: Which Is Better?
BMI measures overall weight relative to height but cannot distinguish between muscle and fat or where fat is stored. WHR specifically measures abdominal fat distribution, which research shows is a stronger predictor of heart disease, type 2 diabetes, and stroke. Using both metrics together provides a more complete picture of metabolic health than either alone.
How to Improve Your WHR
Reducing waist circumference is the most effective way to improve your WHR. Combine regular aerobic exercise (150+ minutes per week) with strength training to reduce visceral fat. Focus on whole foods, limit processed sugars and refined carbohydrates, manage stress levels, and ensure adequate sleep. Even modest reductions in waist measurement can significantly lower health risks.
