← Back to Children’s Footwear Matrix

Europe Size 21 to US: 4

Cross-market children’s footwear conversion mapping 21 specifications into 4 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: 4 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: 4: 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 US: 4

Europe Size 16 → us-416 to us-4
View
Europe Size 16.5 → us-416.5 to us-4
View
Europe Size 17 → us-417 to us-4
View
Europe Size 18 → us-418 to us-4
View
Europe Size 18.5 → us-418.5 to us-4
View
Europe Size 19 → us-419 to us-4
View
Europe Size 19.5 → us-419.5 to us-4
View
Europe Size 20 → us-420 to us-4
View
Europe Size 21 → us-421 to us-4
View
Europe Size 21.5 → us-421.5 to us-4
View
Europe Size 22 → us-422 to us-4
View
Europe Size 23 → us-423 to us-4
View