US: 8 to Europe Size 80

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 80: Corresponds to a height baseline of 80 $\text{cm}$ (31.5 $\text{in}$), a weight baseline of 11 $\text{kg}$ (24 $\text{lbs}$), and a chest baseline of 50 $\text{cm}$ (19.7 $\text{in}$).