Body Frame Size Calculator
Determine your body frame size (small, medium, or large) using wrist circumference and height.
Helps interpret ideal weight ranges.
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Body Frame Size
Body frame size is determined by comparing your wrist circumference to your height. This method was developed by the Metropolitan Life Insurance Company.
Method: Frame Ratio = Height (cm) / Wrist Circumference (cm)
For women:
- Ratio > 11.0: Small frame
- Ratio 10.1 - 11.0: Medium frame
- Ratio < 10.1: Large frame
For men:
- Ratio > 10.4: Small frame
- Ratio 9.6 - 10.4: Medium frame
- Ratio < 9.6: Large frame
Why it matters: Body frame size affects your ideal weight range. A large-framed person naturally weighs more than a small-framed person of the same height. Many ideal weight charts include adjustments for frame size.