Calculate your waist-to-hip ratio and assess health risk based on your measurements and gender. Health data never leaves your device — every calculation runs locally in your browser.
Content reviewed October 2026 · About Toolzum
Calculate body fat percentage using the US Navy circumference method. Enter waist, neck, height, and hip measurements. Health data never leaves your device — every calculation runs locally in your browser.
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WHR = waist circumference / hip circumference. Measure waist at the narrowest point (above belly button) and hips at the widest point (around buttocks).
Men: low risk (<0.90), moderate (0.90-0.99), high (1.00+). Women: low risk (<0.80), moderate (0.80-0.84), high (0.85+). Higher WHR indicates greater cardiovascular and diabetes risk.
WHR measures fat distribution (apple vs pear shape) while BMI measures overall weight relative to height — clinicians often use them together for cardiovascular risk context. Defaults (80 cm waist, 95 cm hips = 0.84) read low risk for men and moderate for women.
The ratio is the same regardless of unit. Use whichever measuring tape you have — the WHR value is unit-agnostic.
No. All calculations run locally in your browser. No measurement data is transmitted.
Body Fat Percentage Calculator
Calculate body fat percentage using the US Navy circumference method. Enter waist, neck, height, and hip measurements. Health data never leaves your device — every calculation runs locally in your browser.
BMI Calculator
Computes Body Mass Index from metric or imperial height and weight inputs, categorizing the result into underweight, normal, overweight, and obese, with a healthy weight range for your height. Health data never leaves your device — every calculation runs locally in your browser.