Europe Size 21 to US: 2

Cross-market children’s footwear conversion mapping 21 specifications into 2 for sneakers, boots, sandals, dress shoes, slippers, and dance shoes.

From Standard & Size
EU
Converted Equivalent
US
4.5
Based on row equivalence: US 4.5 | EU 21 | Foot Length 12.5 cm
Standard cross-walk matching active anthropometric row parameters.
Europe Size 21 to US: 2 Conversion

Analyzing Footwear Size Equivalence Across Markets

Europe Size 21: Corresponds to a foot length of12.5 cm\text{cm} (4.9 in\text{in}), estimated age 24m, and Mondopoint 125 mm\text{mm}.

US: 2: Corresponds to a foot length of 10.0 cm\text{cm} (3.9 in\text{in}), estimated age 6-9m, and Mondopoint 100 mm\text{mm}.

Other Conversions to US: 2