# Body Shape Calculator

Determine your body shape from bust, waist, and hip measurements. Find out if you are an hourglass, pear, apple, rectangle, or inverted triangle body type.

## What this calculates

Your body shape is determined by the proportional relationship between your bust, waist, and hip measurements. Enter your numbers below to find out which of the five main body shape categories you fall into.

## Inputs

- **Bust / Chest** (cm) — min 50, max 200 — Measure at the fullest point of your bust or chest
- **Waist** (cm) — min 40, max 200 — Measure at the narrowest point of your natural waist
- **Hips** (cm) — min 50, max 250 — Measure at the widest point of your hips and buttocks

## Outputs

- **Body Shape** — formatted as text — Your body shape classification based on measurement ratios
- **Bust-to-Waist Ratio** — Ratio of bust to waist circumference
- **Hip-to-Waist Ratio** — Ratio of hip to waist circumference
- **Bust-to-Hip Ratio** — Ratio of bust to hip circumference

## Details

Body shape classification uses the ratios between three key measurements: bust (or chest), waist, and hips. The five main categories are:

**Hourglass** -- Bust and hips are roughly equal, with a well-defined waist at least 5% narrower than both. Example: 36-26-36 inches.

**Pear (Triangle)** -- Hips are wider than bust and waist. The waist is defined but not as dramatically as an hourglass. Example: 34-28-40 inches.

**Inverted Triangle** -- Bust and shoulders are wider than hips. Common in athletic builds with broad shoulders. Example: 40-32-35 inches.

**Rectangle (Straight)** -- Bust, waist, and hips are within a few inches of each other, with minimal waist definition. Example: 34-32-35 inches.

**Apple (Round)** -- Waist is as wide as or wider than bust and hips. Weight tends to concentrate around the midsection. Example: 36-37-38 inches.

Body shape is largely determined by bone structure and genetics. While exercise and body composition changes can shift your measurements, your underlying frame type tends to stay consistent.

## Frequently Asked Questions

**Q: How do I take accurate measurements?**

A: Use a flexible measuring tape. For bust, measure at the fullest point while wearing a non-padded bra or no bra. For waist, measure at the narrowest point of your natural waist, usually about an inch above the navel. For hips, measure at the widest point of your buttocks. Stand relaxed and keep the tape level all the way around. Take each measurement twice and use the average.

**Q: Can my body shape change over time?**

A: Your underlying skeletal frame does not change, but your body shape classification can shift with weight gain, weight loss, or changes in muscle mass. For example, building upper body muscle can shift a pear shape toward a rectangle or hourglass. Significant weight gain often moves people toward an apple shape as abdominal fat increases.

**Q: What is the most common body shape?**

A: The rectangle (straight) body shape is the most common, with about 46% of women falling into this category according to research from North Carolina State University. Apple shapes account for about 14%, pear shapes about 20%, hourglass about 8%, and inverted triangle about 12%. These percentages vary by population and measurement criteria.

**Q: Does body shape affect health risks?**

A: Yes. Apple-shaped bodies, which carry more weight around the midsection, are associated with higher risks of cardiovascular disease, type 2 diabetes, and metabolic syndrome. This is because abdominal visceral fat is more metabolically active and inflammatory than fat stored on the hips and thighs. A waist-to-hip ratio calculator can provide more specific health risk information.

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Source: https://vastcalc.com/calculators/health/body-shape
Category: Health & Fitness
Last updated: 2026-04-08