US: 4 to Europe Size 28.5

Cross-market children’s footwear conversion mapping 4 specifications into 28.5 for sneakers, boots, sandals, dress shoes, slippers, and dance shoes.

From Standard & Size
US
Converted Equivalent
EU
20
Based on row equivalence: US 4 | EU 20 | Foot Length 12.0 cm
Standard cross-walk matching active anthropometric row parameters.
US: 4 to Europe Size 28.5 Conversion

Analyzing Footwear Size Equivalence Across Markets

US: 4: Corresponds to a foot length of12.0 cm\text{cm} (4.7 in\text{in}), estimated age 18-24m, and Mondopoint 120 mm\text{mm}.

Europe Size 28.5: Corresponds to a foot length of 18.2 cm\text{cm} (7.2 in\text{in}), estimated age 7-8y, and Mondopoint 182 mm\text{mm}.

Other Conversions to Europe Size 28.5