US: 4.5 to Europe Size 23

Cross-market children’s footwear conversion mapping 4.5 specifications into 23 for sneakers, boots, sandals, dress shoes, slippers, and dance shoes.

From Standard & Size
US
Converted Equivalent
EU
21
Based on row equivalence: US 4.5 | EU 21 | Foot Length 12.5 cm
Standard cross-walk matching active anthropometric row parameters.
US: 4.5 to Europe Size 23 Conversion

Analyzing Footwear Size Equivalence Across Markets

US: 4.5: Corresponds to a foot length of12.5 cm\text{cm} (4.9 in\text{in}), estimated age 24m, and Mondopoint 125 mm\text{mm}.

Europe Size 23: Corresponds to a foot length of 14.0 cm\text{cm} (5.5 in\text{in}), estimated age 3y, and Mondopoint 140 mm\text{mm}.

Other Conversions to Europe Size 23