US: 5 to Europe Size 86

US: 5: Corresponds to a height baseline of 110 $\text{cm}$ (43.3 $\text{in}$), a weight baseline of 19 $\text{kg}$ (42 $\text{lbs}$), and a chest baseline of 60 $\text{cm}$ (23.6 $\text{in}$).

Europe Size 86: 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 $\text{in}$).