US: 46 to United Kingdom Size 38

US: 46: Corresponds to a waist size of 115 $\text{cm}$ (46 $\text{in}$), total strap length of 130 $\text{cm}$ (51.2 $\text{in}$), and recommended fit classification Relaxed / Expanded.

United Kingdom Size 38: Corresponds to a waist size of 95 $\text{cm}$ (38 $\text{in}$), total strap length of 110 $\text{cm}$ (43.3 $\text{in}$), and recommended fit classification Standard / Regular.