Europe Size 40–42 Regular to US: 6 Petite

Europe Size 40–42 Regular: Corresponds to a bust girth of 94 $\text{cm}$ (37 $\text{in}$), waist girth of 73.7 $\text{cm}$ (29 $\text{in}$), hip girth of 99.1 $\text{cm}$ (39 $\text{in}$), stature variant Regular (163–170 cm / 5’4”–5’7”), and fit classification Modern Professional Fit.

US: 6 Petite: Corresponds to a bust girth of 88.9 $\text{cm}$ (35 $\text{in}$), waist girth of 68.6 $\text{cm}$ (27 $\text{in}$), hip girth of 94 $\text{cm}$ (37 $\text{in}$), stature variant Petite (Under 163 cm / Under 5’4”), and fit classification Petite Tailored Fit.