US: 18M to Europe Size 62

US: 18M: Corresponds to a height baseline of 86 $\text{cm}$ (33.9 $\text{in}$), a weight baseline of 12.5 $\text{kg}$ (27.5 $\text{lbs}$), and a chest baseline of 52 $\text{cm}$ (20.5 $\text{in}$).

Europe Size 62: 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 $\text{in}$).