Body Type Calculator
Determine your Somatotype (Frame Size) using wrist circumference.
Measure around the bony process of the wrist.
The Three Somatotypes
Ectomorph (Small Frame): Naturally thin, narrow shoulders/hips, fast metabolism.
Mesomorph (Medium Frame): Muscular, broad shoulders, easy to build muscle.
Endomorph (Large Frame): Stocky build, wider hips, slower metabolism.