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US: 12-XW to Europe Size 39

Cross-market children’s footwear width fitting conversion mapping 12-XW specifications into 39 for Brannock infant/child grades, M/W/XW sizing indexes, and ball width dimensions.

From Standard & Size
US
Converted Equivalent
EU
30
Based on row equivalence: US 12-XW | EU 30 | Foot Length 18.5 cm
Standard cross-walk matching active anthropometric row parameters.
US: 12-XW to Europe Size 39 Width Conversion

Analyzing Shoe Width and Fitting Equivalence Across Markets

US: 12-XW: Corresponds to a foot length of 18.5 cm\text{cm} (7.3 in\text{in}), ball width of 8 cm\text{cm} (3.15 in\text{in}), grade Extra-Wide (4E), growth margin 1 cm\text{cm}, estimated age 7-8y, Mondopoint 185 mm\text{mm}, and fit type Little Kid Extra-Wide (US 12 / Width 4E).

Europe Size 39: Corresponds to a foot length of 24.5 cm\text{cm} (9.6 in\text{in}), ball width of 10 cm\text{cm} (3.95 in\text{in}), grade Extra-Wide (4E), growth margin 1.2 cm\text{cm}, estimated age 13y+, Mondopoint 245 mm\text{mm}, and fit type Big Kid Extra-Wide (US 7 / Width 4E).

Other Width Conversions to Europe Size 39

US: 0-W → eu-390-W to eu-39
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US: 0-M → eu-390-M to eu-39
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US: 2-W → eu-392-W to eu-39
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US: 4-XW → eu-394-XW to eu-39
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US: 5-N → eu-395-N to eu-39
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US: 6-M → eu-396-M to eu-39
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US: 7-W → eu-397-W to eu-39
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US: 9-XW → eu-399-XW to eu-39
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US: 10-M → eu-3910-M to eu-39
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US: 11-W → eu-3911-W to eu-39
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US: 12-XW → eu-3912-XW to eu-39
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US: 13-M → eu-3913-M to eu-39
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