Body Frame Size Calculator
Estimate body frame category using elbow breadth or wrist circumference
All calculations are performed in your browser using height to measurement index rules. No server-side processing is used.Input details
Results
Medium frameBody frame size index
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Body frame size
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Graphical representation
Index = Height (cm) / Measurement (cm). Higher index indicates smaller frame in this reference.
Reference Tables & Notes
Elbow Breadth Reference
| Gender | Small frame | Medium frame | Large frame |
|---|---|---|---|
| Men | > 10.4 | 9.6 - 10.4 | < 9.6 |
| Women | > 11.0 | 10.1 - 11.0 | < 10.1 |
Elbow breadth is measured with calipers at the widest point between the epicondyles of the humerus, with the arm bent at 90 degrees.
Wrist Circumference Reference Cutoffs
| Gender | Small frame | Medium frame | Large frame |
|---|---|---|---|
| Men | > 10.4 | 9.6 - 10.4 | < 9.6 |
| Women | > 11.0 | 10.1 - 11.0 | < 10.1 |
Reference Interpretation
- Small frame: lower bone mass, lower muscle potential, lower ideal body weight range.
- Medium frame: baseline reference for most BMI and IBW charts.
- Large frame: heavier skeleton, often a higher ideal weight range (about 5-10% above medium).