US: 8 to Europe Size 68

US: 8: Corresponds to a height baseline of 128 $\text{cm}$ (50.4 $\text{in}$), a weight baseline of 27 $\text{kg}$ (59.5 $\text{lbs}$), and a chest baseline of 68 $\text{cm}$ (26.8 $\text{in}$).

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 $\text{in}$).