fitness_center Body Type Calculator

How the Body Type Calculator Works

Your body type — or somatotype — describes your natural build: ectomorph (slim, small frame), mesomorph (athletic, medium frame) or endomorph (broad, sturdy frame). This calculator estimates it from your frame size, using the standard wrist-to-height ratio: your height in centimetres divided by your wrist circumference. A higher ratio means a smaller frame for your height.

For men, a ratio above 10.4 means a small frame, 9.6 to 10.4 is medium, and below 9.6 is large. For women the bands are above 11.0, 10.1 to 11.0, and below 10.1. Small frames lean ectomorph, medium frames lean mesomorph and large frames lean endomorph. If you also enter shoulder and hip width, the tool checks whether your shape matches your frame — broader shoulders than hips fits the mesomorph shape, wider hips than shoulders fits the endomorph shape.

Example: a man 180 cm tall with a 16 cm wrist has a ratio of 180 ÷ 16 = 11.25 — above 10.4, so a small frame and an ectomorph leaning. A woman 165 cm tall with a 15.5 cm wrist has a ratio of 10.65 — inside the 10.1 to 11.0 band, so a medium frame and a mesomorph leaning. A man 175 cm tall with a 19 cm wrist has a ratio of 9.21 — below 9.6, so a large frame and an endomorph leaning.

Treat the result as a starting point, not a verdict. Most people are a blend of two types, and training, food, age and hormones shape your body far more than bone structure does. This tool is an estimate for general information — it is not a medical assessment, and it cannot diagnose anything.

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