US: 8-D to United Kingdom Size 5-AA

Cross-market women’s shoe width conversion mapping 8-D specifications into 5-AA.

From Standard & Size

Converted Equivalent

6-D

Based on row equivalence: US 8-D | EU 38-G | Foot Length 23.5 cm

Standard cross-walk matching active anthropometric row parameters.

US: 8-D to United Kingdom Size 5-AA Conversion

Analyzing Women’s Shoe Width Equivalence Across Markets

US: 8-D: Corresponds to a forefoot ball width of 9.5 $\text{cm}$ (3.74 $\text{in}$ ), ball width range of 9.3–9.7 $\text{cm}$ (3.66–3.82 $\text{in}$ ), reference foot length of 23.5 $\text{cm}$ (9.25 $\text{in}$ ), and fit classification Wide (8-D).

United Kingdom Size 5-AA: Corresponds to a forefoot ball width of 8 $\text{cm}$ (3.15 $\text{in}$ ), ball width range of 7.8–8.2 $\text{cm}$ (3.05–3.25 $\text{in}$ ), reference foot length of 23 $\text{cm}$ (9.05 $\text{in}$ ), and fit classification Extra Narrow (7-4A / Slim).