United Kingdom Size 12-14 to US: 4-6

United Kingdom Size 12-14: Waist range of 70–75 $\text{cm}$ (27.6–29.5 $\text{in}$), hip range of 96–101 $\text{cm}$ (37.8–39.8 $\text{in}$), lengths (Mini/Midi/Maxi): 45/78/103 $\text{cm}$ (17.7/30.7/40.6 $\text{in}$), and fit style Fitted Waist / A-Line & Straight.

US: 4-6: Waist range of 65–69 $\text{cm}$ (25.6–27.2 $\text{in}$), hip range of 91–95 $\text{cm}$ (35.8–37.4 $\text{in}$), lengths (Mini/Midi/Maxi): 43.5/76.5/101.5 $\text{cm}$ (17.1/30.1/40 $\text{in}$), and fit style Fitted Waist / A-Line & Straight.