US: 3T to Europe Size 68

US: 3T: Corresponds to a height baseline of 98 $\text{cm}$ (38.6 $\text{in}$), a weight baseline of 15.5 $\text{kg}$ (34 $\text{lbs}$), and a chest baseline of 56 $\text{cm}$ (22 $\text{in}$).

Europe Size 68: Corresponds to a height baseline of 68 $\text{cm}$ (26.8 $\text{in}$), a weight baseline of 8 $\text{kg}$ (17.5 $\text{lbs}$), and a chest baseline of 46 $\text{cm}$ (18.1 $\text{in}$).