US: Size 5 to Europe Size 1
Cross-market children’s diapers, nappies, and training pants apparel conversion mapping Size 5 specifications into 1.

Analyzing Size Equivalence Across Markets
US: Size 5: Corresponds to a weight range of 12.2–20 (27–45 ) and an approximate age bracket of 18–36 .
Europe Size 1: Corresponds to a weight range of 2.5–4.5 (5–10 ) and an approximate age bracket of 0–1 .