International Size Chart
Inside Diameter (mm) | Inside Circumference (mm) | US | AU/UK |
---|---|---|---|
14.1 | 44.3 | 3 | F |
14.3 | 44.9 | 3.25 | F.5 |
14.5 | 45.6 | 3.5 | G |
14.7 | 46.2 | 3.75 | G.5 |
14.9 | 46.8 | 4 | H |
15.1 | 47.4 | 4.25 | H.5 |
15.3 | 48.1 | 4.5 | I |
15.5 | 48.7 | 4.75 | 1.5 |
15.7 | 49.3 | 5 | J |
15.9 | 50 | 5.25 | J.5 |
16.1 | 50.6 | 5.5 | K |
16.3 | 51.2 | 5.75 | K.5 |
16.5 | 51.8 | 6 | L |
16.7 | 52.5 | 6.25 | L.5 |
16.9 | 53.1 | 6.5 | M |
17.1 | 53.7 | 6.75 | M.5 |
17.3 | 54.3 | 7 | N |
17.5 | 55 | 7.25 | N.5 |
17.7 | 55.6 | 7.5 | O |
17.9 | 56.2 | 7.75 | O.5 |
18.1 | 56.9 | 8 | P |
18.3 | 57.5 | 8.25 | P.5 |
18.5 | 58.1 | 8.5 | Q |
18.8 | 59.1 | 8.75 | Q.5 |
19 | 59.7 | 9 | R |
19.2 | 60.3 | 9.25 | R.5 |
19.4 | 60.9 | 9.5 | S |
19.6 | 61.6 | 9.75 | S.5 |
19.8 | 62.2 | 10 | T |
20 | 62.8 | 10.25 | T.5 |
20.2 | 63.5 | 10.5 | U |
20.4 | 64.1 | 10.75 | U.5 |
20.6 | 64.7 | 11 | V |
20.8 | 65.3 | 11.25 | V.5 |
21 | 66 | 11.5 | W |
21.2 | 66.6 | 11.75 | W.5 |
21.4 | 67.2 | 12 | X |
21.6 | 67.9 | 12.25 | X.5 |
21.8 | 68.5 | 12.5 | Y |
22 | 69.1 | 12.75 | Z |
22.2 | 69.7 | 13 | Z.5 |