Waist-to-Height Ratio Calculator

A simple but powerful health check: divide your waist by your height. The goal is to keep the number under 0.5 — your waist less than half your height.

Waist circumference

Measure at navel level, relaxed, after a normal exhale.

Height

Why waist matters
Belly fat (visceral fat) is the metabolically active kind — linked to higher risk of diabetes, heart disease and stroke even at a normal BMI.

WHtR often catches risk that BMI misses, especially for “skinny-fat” body shapes.

🥇 Evidence-based cutoffs

Research-backed risk bands.

🏘 Unit flexible

cm or inches, mixed freely.

📈 Waist limit

Your personal healthy max waist.

📖 Beyond BMI

Catches apple-shape risk.