Body Shape Calculator

Written by Great Medico

Updated September 24, 2026 •2 min read

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One body-size number rarely tells the whole story, but it can answer a precise question. Body Shape Calculator is built for that narrower job.

What this calculator does

Body-shape labels summarize how bust, waist, and hip measurements relate to one another. This calculator uses four circumferences to identify the closest built-in shape pattern. Anthropometric equations are convenient because they use simple measurements, but they describe body size or proportion rather than directly measuring tissue composition or health.

How to use it

Enter or select Bust, Waist, High hip, and Hips. Use the units offered by the calculator and keep measurements consistent when you plan to compare results over time.

How the calculation works

The calculator compares bust, waist, high-hip, and full-hip measurements using its internal proportion rules. Those relative differences are then mapped to a shape label such as triangle/pear, hourglass, rectangle, or another supported pattern.

Example

For the sample values prefilled in this calculator, the primary result is Triangle (pear) (Body shape), Bust is 90 cm, and Waist is 70 cm. This example is there to show how the inputs flow through the implemented equation; replace the sample values with your own measurements before using the result.

How to interpret the result

Use the label as a descriptive fit and styling aid, not as a health category. Two people with the same body-shape label can have very different heights, weights, body-fat levels, and health profiles.

Limitations and notes

Small tape-placement differences can change ratios and occasionally the label. The classifications are heuristic rather than medical standards, and the calculator does not infer body composition, disease risk, or an “ideal” body shape. For repeat measurements, consistency usually matters more than false precision: use the same unit system, the same tape or scale when possible, and the same anatomical landmarks. A small change near a category boundary should be viewed in context rather than treated as a sudden biological change.