MasterTool

Waist-to-Hip Ratio Calculator

Calculate your waist-to-hip ratio (WHR) and compare it with the published WHO-based bands for men and women.

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What this tool does

Calculate your waist-to-hip ratio (WHR) and compare it with the published WHO-based bands for men and women. Measure waist at the narrowest point / midpoint and hips at the widest point over the buttocks. Bands are screening references, not diagnosis.

How to use the Waist-to-Hip Ratio Calculator

  1. Enter or select waist circumference in in.
  2. Enter or select hip circumference in in.
  3. Enter or select sex.
  4. Read the calculated result; change any measurement to compare alternatives.

Formula

WHR = waist / hip; bands: men low ≤0.90, moderate 0.91–0.99, high ≥1.00; women low ≤0.80, moderate 0.81–0.85, high ≥0.86 (WHO-based published bands)
waist
Waist circumference (in, before metric conversion)
hip
Hip circumference (in, before metric conversion)
sex
Sex

Measure waist at the narrowest point / midpoint and hips at the widest point over the buttocks. Bands are screening references, not diagnosis.

Worked example

For waist-to-hip ratio calculator, the following measurements illustrate the exact method: Waist circumference: 34; Hip circumference: 40; Sex: male.

Inputs

  • Waist circumference34 in
  • Hip circumference40 in
  • SexMale

Result

  • Waist-to-hip ratio0.85
  • WHO-based bandLow band

Results explained

Waist-to-hip ratio
Waist-to-hip ratio from the formula above. Measure waist at the narrowest point / midpoint and hips at the widest point over the buttocks. Bands are screening references, not diagnosis.
WHO-based band
WHO-based band from the formula above. Measure waist at the narrowest point / midpoint and hips at the widest point over the buttocks. Bands are screening references, not diagnosis.

Frequently asked questions

Divide your waist circumference by your hip circumference, both in the same units. A 34 in waist and 40 in hips gives 34/40 = 0.85.

WHO publications use WHR above 0.90 in men and above 0.85 in women as indicating substantially increased metabolic risk; the three-band tables split low/moderate/high around those cut-offs.

Waist at the midpoint between the lowest rib and iliac crest; hips at the widest circumference over the buttocks, tape level and snug but not compressing.

Both describe central fat distribution. WHtR needs one boundary value (0.5) for everyone; WHR bands differ by sex. Many people track both alongside BMI.

No. It is one screening measurement. Diagnosis requires clinical assessment and laboratory markers interpreted by a professional.