Europe Size 52 to US: 31

Europe Size 52: Features a waist girth of 91 $\text{cm}$ (35.8 $\text{in}$), inseam length of 83 $\text{cm}$ (32.7 $\text{in}$), rise depth of 28 $\text{cm}$, and hip allowance of 111 $\text{cm}$.

US: 31: Features a waist girth of 79 $\text{cm}$ (31.1 $\text{in}$), inseam length of 79 $\text{cm}$ (31.1 $\text{in}$), rise depth of 25.5 $\text{cm}$, and hip allowance of 97 $\text{cm}$.