Ring Sizing Chart

To know your ring size, use a string to measure the circumference of the finger you wish to adorn. If in doubt, move up to the next largest half size. 

Size 3 = 44.0 mm
Size 3.5 = 45.2 mm
Size 4 = 46.5 mm 
Size 4.5 = 47.8 mm
Size 5 = 49.0 mm
Size 5.5 = 50.3 mm
Size 6 = 51.7 mm 
Size 6.5 = 53.1 mm
Size 7 = 54.3 mm
Size 7.5 = 55.6 mm 
Size 8 = 57.2 mm
Size 8.5 = 58.4 mm 
Size 9 = 59.7 mm 
Size 9.5 = 60.9mm
Size 10 = 62.2 mm
Size 10.5 = 63.5 mm
Size 11 = 64.7 mm
Size 11.5 = 66.0 mm
Size 12 = 67.2 mm
Size 12.5 = 68.5 mm
Size 13 = 69.7 mm
Size 13.5 = 71.0 mm