US: M to United Kingdom Size 8.5

US: M: Features a palm circumference of 19 $\text{cm}$ (7.5 $\text{in}$), finger length of 7.5 $\text{cm}$ (3 $\text{in}$), hand width of 8 $\text{cm}$ (3.1 $\text{in}$), and hand length of 18 $\text{cm}$ (7.1 $\text{in}$).

United Kingdom Size 8.5: Features a palm circumference of 22 $\text{cm}$ (8.5 $\text{in}$), finger length of 8.5 $\text{cm}$ (3.3 $\text{in}$), hand width of 9 $\text{cm}$ (3.5 $\text{in}$), and hand length of 20 $\text{cm}$ (7.9 $\text{in}$).