Estimates small/medium/large body frame from wrist or elbow breadth.
Height cm — Your height. Small errors change the outcome noticeably (height is squared in many formulas). Measure standing straight. Example: 0.1.
Height cm is required
wrist circumference cm — Health measurement. Use consistent units and calibrated tools for reliable tracking. Example: 0.101.
wrist circumference cm is required
Estimates small/medium/large body frame from wrist or elbow breadth.
Formula
frameSizeClass = heightCm ÷ wristCircumferenceCm