Calculyn

Waist-to-Hip Ratio Calculator

Calculate your waist-to-hip ratio and see the associated health-risk category.

Results update as you type.

Waist-to-hip ratio

0.8

Low health risk (WHO guidance)

Low-risk limit (women)
0.8

Educational estimate only — not medical advice. Talk to a healthcare professional about your health.

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How to calculate waist-to-hip ratio

WHR = waist ÷ hips

Worked example. Waist-to-hip ratio: 0.8.

Example inputs — Waist (inches or cm): 32; Hips (same unit): 40; Sex: Female. Starting values are illustrative.

Low health risk (WHO guidance)

From George Guju, founder of Calculyn · Educational calculator guidance, not professional advice.

How it works

Waist-to-hip ratio compares waist and hip size. A higher ratio means more weight around the middle, which is linked to higher heart and diabetes risk.

Assumptions & limitations

  • Results are rounded for display.

Formula and assumptions reviewed October 2026 by the Calculyn team. How we build our calculators

Frequently asked questions

How do I measure?

Waist at the narrowest point (usually just above the belly button), hips at the widest point of the buttocks.