OhMyCalc

Body Frame Type Calculator

Determine your body frame size (small, medium, or large) using wrist circumference and height.

How to Use the Body Frame Type Calculator

  1. Select your sex (Male or Female).
  2. Enter your height and wrist circumference.
  3. Click Calculate to determine your body frame type.
  4. Review your frame classification (small, medium, or large) and what it means for your ideal weight range.

Quick Reference

FromTo
Men (healthy)15–20% body fat
Men (athletes)6–13% body fat
Women (healthy)20–25% body fat
Women (athletes)14–20% body fat
Essential fat (M)2–5%
Essential fat (F)10–13%

Use Cases

Frequently Asked Questions

What is body frame type?
Body frame type (small, medium, large) describes your skeletal structure size. It is determined by bone size, typically measured via wrist circumference.
How do I measure my wrist?
Wrap a measuring tape around your wrist just below the wrist bone (the bony protrusion on the side). Measure in centimeters.
Why does frame type matter?
Frame type affects ideal body weight ranges. People with larger frames naturally weigh more at the same height.
What method does this calculator use?
This calculator uses the height-to-wrist circumference ratio method, which provides a simple and commonly used frame size classification.