The Waist-to-Height Ratio (WHtR) is a modern health metric that is gaining popularity for its simplicity and predictive power regarding health risks. It's based on the idea that your waist circumference should be less than half of your height. A higher ratio indicates more central (visceral) fat, which is the fat stored around your abdominal organs. This type of fat is strongly linked to an increased risk of cardiovascular disease, type 2 diabetes, and other metabolic conditions. Use this calculator for a quick and easy assessment of your health risk.