US: 3T to Europe Size 104

US: 3T: Corresponds to a height baseline of 98 $\text{cm}$ (38.6 $\text{in}$), a waist baseline of 51 $\text{cm}$ (20.1 $\text{in}$), an inseam baseline of 39 $\text{cm}$ (15.4 $\text{in}$), and a hip baseline of 56 $\text{cm}$ (22 $\text{in}$).

Europe Size 104: Corresponds to a height baseline of 104 $\text{cm}$ (40.9 $\text{in}$), a waist baseline of 52 $\text{cm}$ (20.5 $\text{in}$), an inseam baseline of 43 $\text{cm}$ (16.9 $\text{in}$), and a hip baseline of 58 $\text{cm}$ (22.8 $\text{in}$).