Body Type Calculator
Know your body type for training.
Body Type Calculator
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Calculated instantly
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What This Calculator Does
The Body Type Calculator classifies your body into one of three somatotypes based on simple body measurements. Each type responds differently to exercise and nutrition.
How It Works
Enter your wrist and ankle circumferences relative to your height. Thinner bones suggest ectomorph, thicker suggest endomorph.
Example
A 175 cm male with a 17 cm wrist and 23 cm ankle is classified as a balanced mesomorph.
Formula
Based on bone structure ratiosReading the Results
Wrist Ratio
Thin wrists (below 8.9% of height) suggest ectomorph. Above 10.0% suggest endomorph.
Ankle Ratio
Thin ankles (below 12.5% of height) suggest ectomorph. Above 14.5% suggest endomorph.
Frequently Asked Questions
Can I change my body type?
You cannot change your underlying bone structure, but you can shift body composition through training and nutrition.
What should ectomorphs eat?
Ectomorphs typically benefit from a calorie surplus with moderate-to-high carbs to support training and recovery.
Are somatotypes scientifically valid?
They are a useful framework but not a rigid classification. Most people are a blend of two types.