Europe Size 18.5 to US: 4

Cross-market children’s footwear conversion mapping 18.5 specifications into 4 for sneakers, boots, sandals, dress shoes, slippers, and dance shoes.

From Standard & Size

Converted Equivalent

2.5

Based on row equivalence: US 2.5 | EU 18.5 | Foot Length 10.5 cm

Standard cross-walk matching active anthropometric row parameters.

Analyzing Footwear Size Equivalence Across Markets

Europe Size 18.5: Corresponds to a foot length of10.5 $\text{cm}$ (4.1 $\text{in}$ ), estimated age 6-9m, and Mondopoint 105 $\text{mm}$ .

US: 4: Corresponds to a foot length of 12.0 $\text{cm}$ (4.7 $\text{in}$ ), estimated age 18-24m, and Mondopoint 120 $\text{mm}$ .