Body Shape Calculator
Determine your body shape from bust, waist, and hip measurements. Hourglass, pear, apple, rectangle, and more.
Embed this toolYour hips are wider than your bust with a well-defined waist. Weight tends to gather in the lower body.
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What This Tool Does
This calculator determines your body shape category from three simple circumference measurements: bust, waist, and hips. Using established ratios from fashion and anthropometric research, it classifies your proportions into one of five common shapes: hourglass, pear, apple, rectangle, or inverted triangle. The tool also computes your waist-to-hip ratio, a metric used by health professionals to assess fat distribution and metabolic risk. Results are instant and private — no data is stored or transmitted.
How It Works: Body Shape Ratios
Body shape classification relies on three key ratios. The waist-to-bust ratio compares waist circumference to bust circumference. The waist-to-hip ratio compares waist to hips. The bust-to-hip ratio compares the upper and lower body. Each shape has characteristic ratio patterns.
An hourglass shape has a waist-to-bust ratio ≤ 0.75 and waist-to-hip ratio ≤ 0.75, with bust and hips within 10% of each other. A pear shape has hips noticeably wider than the bust (bust/hip < 0.95) with a defined waist. An apple shape has a less defined waist relative to both bust and hips (waist/bust > 0.80 and waist/hip > 0.80). A rectangle has roughly equal bust, waist, and hip measurements with minimal waist definition. An inverted triangle has a bust wider than hips (bust/hip > 1.05). For a more comprehensive health picture, combine this with our BMI Calculator and Body Fat Calculator.
Worked Example: Measuring and Classifying
A person measures 36 inches at the bust, 27 inches at the waist, and 38 inches at the hips. The waist-to-bust ratio is 27 ÷ 36 = 0.75. The waist-to-hip ratio is 27 ÷ 38 = 0.71. The bust-to-hip ratio is 36 ÷ 38 = 0.95. Because both waist ratios are at or below 0.75 and the bust and hips are nearly equal, this person falls into the hourglass category. Their waist-to-hip ratio of 0.71 is well within the healthy range — below the 0.85 threshold associated with increased cardiovascular risk for women.
Body Shapes at a Glance
| Shape | Key Feature | Typical Ratios |
|---|---|---|
| Hourglass | Defined waist, balanced bust and hips | W/B ≤ 0.75, W/H ≤ 0.75 |
| Pear | Hips wider than bust, defined waist | B/H < 0.95, W/H ≤ 0.80 |
| Apple | Waist less defined, weight in midsection | W/B > 0.80, W/H > 0.80 |
| Rectangle | Bust, waist, hips nearly equal | All ratios close to 1.0 |
| Inverted Triangle | Bust wider than hips, defined waist | B/H > 1.05, W/B ≤ 0.80 |
Health Context: Waist-to-Hip Ratio
While body shape is primarily a fashion and styling concept, the underlying ratios have health significance. The World Health Organization identifies waist-to-hip ratio as a predictor of cardiovascular risk. Women with WHR above 0.85 and men above 0.90 have elevated risk regardless of BMI. This is because abdominal fat — more common in apple shapes — is metabolically active and releases inflammatory compounds. Pear shapes, which store fat in the hips and thighs, generally have lower cardiovascular risk at the same body weight. These are population-level trends, not individual diagnoses. Always consult a healthcare provider for personalized advice.