Waist-to-Hip Ratio Calculator
Waist-to-hip ratio calculator: WHR from waist and hip circumference, with the WHO risk thresholds (0.90 for men, 0.85 for women).
WHR = WH
How to use this calculator
- Choose the quantity you want under “Solve for”.
- Type the known values and pick their units: any combination works.
- The result updates as you type. Open “Show the steps” to see the substitution.
Measure the waist at the narrowest point (or midway between ribs and hip bone) and the hips at the widest point. A higher ratio means more abdominal fat.
For general information only; it does not replace advice from a doctor or other health professional.
Formula
WHR = WH
| Symbol | Quantity | Units |
|---|---|---|
| W | Waist circumference | m, km, cm, mm, µm, nm, pm, Å, in, ft, yd, mi, nmi, au, ly |
| H | Hip circumference | m, km, cm, mm, µm, nm, pm, Å, in, ft, yd, mi, nmi, au, ly |
| WHR | Waist-to-hip ratio | — |
Worked example
Given: W = 33.4646 in · H = 39.3701 in
WHR = WH
Result: WHR = 0.85
Waist-to-hip ratio for different values of Waist circumference
| W · Waist circumference | WHR · Waist-to-hip ratio |
|---|---|
| 26.77 in | 0.68 |
| 30.12 in | 0.765 |
| 33.46 in | 0.85 |
| 36.81 in | 0.935 |
| 40.16 in | 1.02 |
| 43.5 in | 1.105 |
Other values as in the worked example.
Frequently asked questions
Waist 34 in, hips 40 in?
WHR = 0.85.
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