Body Type Calculator
Identify your body shape from bust, waist and hip measurements.
Inputs
Measure around the fullest part of the chest.
Measure at the narrowest point, usually just above the navel.
Measure at the fullest part of the hips and buttocks.
Body Shape
Triangle (Pear)
Description
Hips are wider than bust; weight and volume concentrated in the lower body.
Waist-to-Hip Ratio
0.739
Waist-to-Bust Ratio
0.756
Hip-to-Bust Ratio
1.022
Step by step
Waist-to-hip ratio
68 ÷ 92
= 0.739
Waist-to-bust ratio
68 ÷ 90
= 0.756
Hip-to-bust ratio
92 ÷ 90
= 1.022
Shape classification
= Triangle (Pear)
Hips are wider than bust; weight and volume concentrated in the lower body.
How it works
Body shape is determined by the relative proportions of bust, waist and hips. The classification maps these ratios to seven recognised shapes. The waist-to-hip ratio is the primary driver: a waist significantly narrower than hips produces hourglass or pear shapes; similar measurements produce a rectangle; a wide shoulder-to-hip differential produces an inverted triangle.
Formula
Waist-to-hip ratio
WHR = Waist circumference ÷ Hip circumference
Body shape classification is based on proportion ratios and is a screening tool only. It does not constitute a medical assessment or dietary advice. Body shape is one factor among many that influence health risk.
Frequently Asked Questions
Does body shape have health implications?
Yes — waist-to-hip ratio is a validated predictor of cardiovascular and metabolic risk, independent of BMI. A higher WHR (fat stored around the abdomen) is associated with greater risk than fat stored in the hips and thighs. The WHO risk cutpoints are WHR > 0.90 for men and > 0.85 for women.
Can body shape change?
Yes. Significant fat loss or gain changes the proportions of waist and hips. Resistance training can increase shoulder and hip width relative to waist. Hormonal changes (menopause, PCOS) can redistribute fat from hips to abdomen.
How accurately should I measure?
Use a soft tape measure against skin, without pulling tight. Measure at the same time of day (waist circumference varies by several centimetres depending on meals and bloating). Average two consecutive readings if you want more precision.