the same UK “size 12” is a different body at some of the largest high-street brands. waist measurements for one size label across COS, H&M, Mango & ASOS
Source: each brands official online size guide (Woman’s body measurements) accessed June 2026. Tool: Google Sheets
Values are the body measurements (cm) each brands states its size is designed to fit, not garment measurements.
Interesting bit: the brands cluster at the small end and fan out as sizes rise \~12cm of spread on a "size 16" waist. #education source