United Kingdom Size 46–48 to US: 2XL (50–52)

United Kingdom Size 46–48: Corresponds to a chest width of 116.8–121.9 $\text{cm}$ (46–48 $\text{in}$), neck collar girth of 44.5 $\text{cm}$ (17.5 $\text{in}$), sleeve length of 91.4 $\text{cm}$ (36 $\text{in}$), and fit style Generous Full Fit.

US: 2XL (50–52): Corresponds to a chest width of 127–132.1 $\text{cm}$ (50–52 $\text{in}$), neck collar girth of 47 $\text{cm}$ (18.5 $\text{in}$), sleeve length of 94 $\text{cm}$ (37 $\text{in}$), and fit style Extended Plus Fit.