Waist to Hip Ratio Calculator Formula
Understand the math behind the waist to hip ratio calculator. Each variable explained with a worked example.
Formulas Used
Waist-to-Hip Ratio
whr = waist / hipVariables
| Variable | Description | Default |
|---|---|---|
waist | Waist Circumference(inches) | 34 |
hip | Hip Circumference(inches) | 40 |
How It Works
Waist-to-Hip Ratio
WHR = Waist Circumference / Hip Circumference
Health Risk Categories
| Gender | Low Risk | Moderate Risk | High Risk | |---|---|---|---| | Male | < 0.90 | 0.90 - 0.99 | 1.0+ | | Female | < 0.80 | 0.80 - 0.84 | 0.85+ |
WHR is considered a better predictor of cardiovascular risk than BMI alone.
Worked Example
A person with a 34-inch waist and 40-inch hips.
waist = 34hip = 40
- 01WHR = 34 / 40 = 0.850
Ready to run the numbers?
Open Waist to Hip Ratio Calculator