Body Girth & Adiposity Calculators
Four free calculators for waist, hip, and BMI — the measurements clinicians use most often to screen for cardiometabolic risk.
What this category covers
Body girth measurements — especially waist circumference — are stronger predictors of metabolic disease and all-cause mortality than BMI alone. This category groups the four tools that focus on where you carry weight and how much of it is concentrated around the abdomen:
- Waist circumference — the single most-used visceral-fat proxy in clinical practice.
- Hip circumference — used in WHR and as an independent cardiometabolic marker.
- Waist-to-hip ratio (WHR) — WHO risk classification (apple vs pear body shape).
- Adult BMI percentile — compares your BMI to the US adult population your age and sex.
All body girth & adiposity tools
Which one should I use?
Waist circumference and WHR are the strongest single screening tools for cardiometabolic risk in most adults. If you have a tape measure, those are the highest-yield first measurements. BMI is most useful at the population level — for individual screening, pair it with a waist measurement.
For a deep read on the research, see our Body Measurements guide.