US: 6-D to United Kingdom Size 7-AA

Cross-market women’s shoe width conversion mapping 6-D specifications into 7-AA.

From Standard & Size

Converted Equivalent

4-D

Based on row equivalence: US 6-D | EU 36-G | Foot Length 22.5 cm

Standard cross-walk matching active anthropometric row parameters.

US: 6-D to United Kingdom Size 7-AA Conversion

Analyzing Women’s Shoe Width Equivalence Across Markets

US: 6-D: Corresponds to a forefoot ball width of 8.9 $\text{cm}$ (3.5 $\text{in}$ ), ball width range of 8.7–9.1 $\text{cm}$ (3.42–3.58 $\text{in}$ ), reference foot length of 22.5 $\text{cm}$ (8.85 $\text{in}$ ), and fit classification Wide (6-D).

United Kingdom Size 7-AA: Corresponds to a forefoot ball width of 8.5 $\text{cm}$ (3.35 $\text{in}$ ), ball width range of 8.3–8.7 $\text{cm}$ (3.25–3.45 $\text{in}$ ), reference foot length of 24 $\text{cm}$ (9.45 $\text{in}$ ), and fit classification Extra Narrow (9-4A / Slim).