Free fitness tool
Waist-to-Height Ratio Calculator
Waist-to-height ratio is a simple belly-fat health check: keep your waist under half your height. Calculate yours instantly.
0.50
Waist ÷ height
Increased risk
Category
Keep your waist under 86 cm (half your height).
Estimates for healthy adults — not medical advice. Consult a doctor if you have a medical condition.
Frequently asked
Why is waist-to-height better than BMI?+
It measures fat around the belly — the type most linked to diabetes and heart disease — and works for both muscular and slim people.