Waist to Hip Ratio Calculator — Calculate WHR & Health Risk

Gender

Waist Circumference (cm)Enter a valid measurement.

Hip Circumference (cm)Enter a valid measurement.

Waist-to-Hip Ratio

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How to Use This Tool

Measure your waist at the narrowest point, and your hips at the widest point, in centimetres.
Select your gender (risk thresholds differ between men and women).
Click Calculate WHR to see your ratio and risk category.

The Waist-to-Hip Ratio Formula

WHR = Waist Circumference ÷ Hip Circumference

WHO Risk Categories

Men: Below 0.90 (low risk), 0.90–1.0 (moderate risk), above 1.0 (high risk)
Women: Below 0.80 (low risk), 0.80–0.85 (moderate risk), above 0.85 (high risk)

Why WHR Matters Alongside BMI

BMI doesn't distinguish where fat is stored on the body, but research shows that abdominal (visceral) fat — reflected by a higher WHR — is more strongly associated with cardiovascular and metabolic disease risk than overall body fat alone. Two people with identical BMI can have very different WHR and correspondingly different health risk profiles.

Measurement Tips

Measure waist at the narrowest point, typically just above the navel
Measure hips at the widest point around the buttocks
Measure directly against skin or thin clothing, without pulling the tape too tight

Frequently Asked Questions

Why do risk thresholds differ between men and women?

Men and women naturally have different typical body fat distribution patterns, so the WHO established separate risk thresholds for each to more accurately reflect health risk for each sex.

Is WHR more accurate than BMI?

They measure different things — BMI reflects overall body mass relative to height, while WHR reflects fat distribution. Using both together gives a more complete picture of health risk than either alone.

This calculator is provided for general informational and estimation purposes only. Results should not be treated as professional financial, tax, legal, medical, or engineering advice. Always verify critical calculations with a qualified professional or official source before making decisions.