US: 3 to Europe Size 20

Cross-market children’s footwear conversion mapping 3 specifications into 20 for sneakers, boots, sandals, dress shoes, slippers, and dance shoes.

From Standard & Size
US
Converted Equivalent
EU
19
Based on row equivalence: US 3 | EU 19 | Foot Length 11.0 cm
Standard cross-walk matching active anthropometric row parameters.
US: 3 to Europe Size 20 Conversion

Analyzing Footwear Size Equivalence Across Markets

US: 3: Corresponds to a foot length of11.0 cm\text{cm} (4.3 in\text{in}), estimated age 9-12m, and Mondopoint 110 mm\text{mm}.

Europe Size 20: Corresponds to a foot length of 12.0 cm\text{cm} (4.7 in\text{in}), estimated age 18-24m, and Mondopoint 120 mm\text{mm}.

Other Conversions to Europe Size 20