UK D = US 2.25 = EU 41 (12.84 mm)
UK E = US 2.75 = EU 42 (13.57 mm)
UK F = US 3.25 = EU 44 (13.97 mm)
UK G = US 3.75 = EU 45 (14.38 mm)
UK H = US 4.25 = EU 46.5 (14.88 mm)
UK I = US 4.5 = EU 47 (15.10 mm)
UK J = US 5 = EU 48.5 (15.49 mm)
UK K = US 5.5 = EU 50 (15.90 mm)
UK L = US 6 = EU 51 (16.31 mm)
UK M = US 6.5 = EU 52 (16.71 mm)
UK N = US 6.75 = EU 53.5 (17.12 mm)
UK O = US 7 = EU 55 (17.53 mm)
UK P = US 7.5 = EU 56 (17.93 mm)
UK Q = US 8 = EU 57 (18.34 mm)
UK R = US 8.5 = EU 58.5 (18.75 mm)
UK S = US 9 = EU 60 (19.15 mm)
UK T = US 9.5 = EU 61.5 (19.56 mm)
UK U = US 10 = EU 62.5 (19.96 mm)
UK V = US 10.5 = EU 63.8 (20.37 mm)