Body Type Calculator
Determine your somatotype (Ectomorph, Mesomorph, Endomorph) based on your wrist size and body measurements, and get custom fitness recommendations.
How to use
- 1Select your biological gender.
- 2Enter your precise height in cm.
- 3Wrap a measuring tape around your wrist (just above the bone) and enter the circumference in cm.
- 4See your somatotype result and follow the tailored fitness advice.
Frequently Asked Questions — Body Type Calculator
What is a Somatotype?+
Somatotype is a taxonomy developed in the 1940s by psychologist William Sheldon to categorize the human physique according to the relative contribution of three fundamental elements: somatotypes, named after the three germ layers of embryonic development: the endoderm (digestive tract), the mesoderm (muscle, heart, blood vessels), and the ectoderm (skin and nervous system). Today, the fitness industry uses these terms (Ectomorph, Mesomorph, Endomorph) strictly to describe bone structure and metabolic tendencies.
Why does my wrist size matter?+
Your wrist is an area of the body that stores almost zero fat. Therefore, measuring your wrist circumference against your total height provides an extremely accurate approximation of your skeletal frame size (small, medium, or large boned).
Can I change my body type?+
You cannot change your bone structure or genetic baseline. However, an Ectomorph can build significant muscle through heavy lifting and food, looking very muscular. An Endomorph can achieve single-digit body fat through strict dieting. Your lifestyle can override your genetic tendencies.