Europe Size 55.5 to US: 7

Cross-market men’s wedding band and signet ring size conversion mapping 55.5 specifications into 7.

From Standard & Size
EU
Converted Equivalent
US
7.5
Based on row equivalence: US 7.5 | EU 55.5
Standard cross-walk matching active anthropometric row parameters.
Europe Size 55.5 to US: 7 Men’s Rings Conversion

Analyzing Ring Size Equivalence Across Markets

Europe Size 55.5: Features an inner finger circumference of 55.7 mm\text{mm} (2.19 in\text{in}), and an inner diameter of 17.7 mm\text{mm} (0.697 in\text{in}).

US: 7: Features an inner finger circumference of 54.4 mm\text{mm} (2.14 in\text{in}), and an inner diameter of 17.3 mm\text{mm} (0.681 in\text{in}).

Other Conversions to US: 7