US: 9-XW to Europe Size 16

Cross-market children’s footwear width fitting conversion mapping 9-XW specifications into 16 for Brannock infant/child grades, M/W/XW sizing indexes, and ball width dimensions.

From Standard & Size

Converted Equivalent

Based on row equivalence: US 9-XW | EU 26 | Foot Length 15.5 cm

Standard cross-walk matching active anthropometric row parameters.

US: 9-XW to Europe Size 16 Width Conversion

Analyzing Shoe Width and Fitting Equivalence Across Markets

US: 9-XW: Corresponds to a foot length of 15.5 $\text{cm}$ (6.1 $\text{in}$ ), ball width of 7.1 $\text{cm}$ (2.8 $\text{in}$ ), grade Extra-Wide (4E), growth margin 0.9 $\text{cm}$ , estimated age 4-5y, Mondopoint 155 $\text{mm}$ , and fit type Toddler Extra-Wide (US 9 / Width 4E).

Europe Size 16: Corresponds to a foot length of 8.5 $\text{cm}$ (3.3 $\text{in}$ ), ball width of 3.8 $\text{cm}$ (1.5 $\text{in}$ ), grade Narrow (B), growth margin 0.5 $\text{cm}$ , estimated age 0-3m, Mondopoint 85 $\text{mm}$ , and fit type Infant Narrow (US 0 / Width B).