Waist-to-Height & Waist-to-Hip Calculator
Calculate both waist ratios in one tool using stable source-value unit switching.
Important Note : These ratios are screening indicators only. They do not diagnose obesity, heart disease, diabetes, or overall health risk.” NHS says waist-to-height ratio can help understand whether someone may be carrying too much fat around the tummy, but its calculator should not be used to diagnose conditions.
Interpretation Table by Sex (Approximate Sizes)
Use this calculator to find your waist-to-height ratio (WHtR) and waist-to-hip ratio (WHR). These measurements provide simple screening information about waist size and body-fat distribution.
Calculation Method
Waist-to-height ratio = waist circumference ÷ height
Waist-to-hip ratio = waist circumference ÷ hip circumference
Use the same unit for both measurements in each calculation.
A simple waist-to-height reference is:
Half-height waist = height ÷ 2
For adults, keeping waist circumference below half of height corresponds to a waist-to-height ratio below 0.5.
Example
For someone with a waist of 80 cm, height of 170 cm, and hips of 95 cm:
WHtR = 80 ÷ 170 = 0.47
WHR = 80 ÷ 95 = 0.84
The waist-to-height value is below 0.5. Waist-to-hip interpretation can vary according to sex, population, and the reference used.
Important Limitations
These ratios are screening measures only. They do not diagnose obesity, diabetes, cardiovascular disease, or overall health status.