The ring size chart below can help you convert US sizes to other measurement units such as millimeters or European sizes. This can be particularly helpful if you are located outside of the US.
US Size | MM | European Size
4 | 49.3 | 46
4.5 | 49.9 | 46.5
5 | 50.5 | 47
5.5 | 51.1 | 47.5
6 | 51.7 | 48
6.5 | 52.3 | 48.5
7 | 52.9 | 49
7.5 | 53.5 | 49.5
8 | 54.1 | 50
8.5 | 54.7 | 50.5
9 | 55.3 | 51
9.5 | 55.9 | 51.5
10 | 56.5 | 52
10.5 | 57.1 | 52.5
11 | 57.7 | 53
11.5 | 58.3 | 53.5
12 | 58.9 | 54
12.5 | 59.5 | 54.5
13 | 60.1 | 55
13.5 | 60.7 | 55.5
14 | 61.3 | 56