What is the Waist-to-Hip Ratio?
The waist-to-hip ratio (WHR) is a simple measure of how body fat is distributed. You divide your waist circumference by your hip circumference. Because both measurements use the same unit, the ratio is dimensionless and works whether you measure in centimeters or inches, as long as you stay consistent. WHR is widely used as a quick screening indicator for central (abdominal) fat, which is more strongly linked to metabolic risk than fat stored on the hips and thighs.
$$\text{WHR} = \frac{\text{Waist (cm)}}{\text{Hip (cm)}}$$Apple vs Pear Body Type
An "apple" shape carries more fat around the abdomen (visceral or internal fat) and is associated with a higher incidence of lifestyle-related conditions. A "pear" shape stores more fat around the hips and thighs (subcutaneous fat). This calculator labels you apple type when your WHR meets or exceeds the sex-specific threshold, and pear type otherwise.
How to Use It
Select your sex, measure your waist at the narrowest point and your hips at the widest point, and enter both values in centimeters. The calculator returns your exact ratio (to about six significant figures) and your body type. Thresholds applied here are \(1.0\) for men and \(0.9\) for women. Note that other references differ: the WHO commonly uses \(0.90\) for men and \(0.85\) for women.
Worked Example
A woman with a 75 cm waist and 97 cm hips has WHR = $$\text{WHR} = \frac{75}{97} = 0.773196$$ Since \(0.773196\) is below the female threshold of \(0.9\), she is classified as pear type. A man with a 102 cm waist and 98 cm hips has WHR = $$\text{WHR} = \frac{102}{98} = 1.040816$$ which is at or above the male threshold of \(1.0\), so he is apple type.
FAQ
Does the unit matter? No. As long as waist and hip use the same unit, the units cancel and the ratio is identical.
Is a higher WHR worse? A higher ratio indicates more central fat, which is generally linked to greater metabolic risk, but WHR is only one screening signal.
Is this medical advice? No. This tool is informational and for screening only. Consult a healthcare professional for assessment and guidance.
