United Kingdom Size 31–33 to US: L (34–36)

Cross-market men’s underwear and boxer brief conversion mapping 31–33 specifications into L (34–36).

From Standard & Size
UK
Converted Equivalent
US
M (31–33)
Based on row equivalence: US M (31–33) | EU 46–48
Standard cross-walk matching active anthropometric row parameters.
United Kingdom Size 31–33 to US: L (34–36) Conversion

Analyzing Underwear Size Equivalence Across Markets

United Kingdom Size 31–33: Corresponds to a waist stretch range of 78.7–83.8 cm\text{cm} (31–33 in\text{in}), hip circumference of 96.5 cm\text{cm} (38 in\text{in}), thigh clearance of 55 cm\text{cm} (21.7 in\text{in}), and fit style Briefs, Boxers & Boxer Briefs.

US: L (34–36): Corresponds to a waist stretch range of 86.4–91.4 cm\text{cm} (34–36 in\text{in}), hip circumference of 104 cm\text{cm} (41 in\text{in}), thigh clearance of 59 cm\text{cm} (23.2 in\text{in}), and fit style Briefs, Boxers & Boxer Briefs.

Other Conversions to US: L (34–36)