US: 0-3M to Europe Size 74

US: 0-3M: Corresponds to a height baseline of 62 $\text{cm}$ (24.4 $\text{in}$), a weight baseline of 6 $\text{kg}$ (13 $\text{lbs}$), and a chest baseline of 43 $\text{cm}$ (16.9 $\text{in}$).

Europe Size 74: Corresponds to a height baseline of 74 $\text{cm}$ (29.1 $\text{in}$), a weight baseline of 9.5 $\text{kg}$ (21 $\text{lbs}$), and a chest baseline of 48 $\text{cm}$ (18.9 $\text{in}$).