Europe Size 50 to US: 30

Europe Size 50: Features a waist girth of 86 $\text{cm}$ (33.9 $\text{in}$), inseam length of 82 $\text{cm}$ (32.3 $\text{in}$), rise depth of 27 $\text{cm}$, and hip allowance of 106 $\text{cm}$.

US: 30: Features a waist girth of 76 $\text{cm}$ (29.9 $\text{in}$), inseam length of 78 $\text{cm}$ (30.7 $\text{in}$), rise depth of 25 $\text{cm}$, and hip allowance of 94 $\text{cm}$.