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

Analyzing Size Equivalence Across Markets
US: Size 1: Corresponds to a weight range of 3.6–6.4 (8–14 ) and an approximate age bracket of 0–3 .
Europe Size P: Corresponds to a weight range of 1–2.7 (2–6 ) and an approximate age bracket of 0–1 .