US: L to Europe Size 18
Cross-market adult bracelet and cuff apparel conversion mapping L specifications into 18.

Analyzing Size Equivalence Across Markets
US: L: Corresponds to a wrist circumference baseline of 17.5 (6.9 ), bracelet length of 19.5 (7.7 ), and fit classification Standard / Regular.
Europe Size 18: Corresponds to a wrist circumference baseline of 16.5 (6.5 ), bracelet length of 18 (7.1 ), and fit classification Standard / Regular.