Custom Jewellery Designer and Sydney Jewellery Concierge Services

Ring Size Chart

Ring Size Chart

Inside Diameter in Millimeters (mm) Ring Size Australia & UK Ring Size Canada & USA
12.00 A
12.20 A.5
12.40 B
12.65 B.5 1
12.85 C
13.00 C.5 1.5
13.20 D
13.40 D.5 2
13.60 E
13.80 E.5 2.5
13.95 F
14.15 F.5 3
14.35 G
14.55 G.5 3.5
14.75 H
14.95 H.5 4
15.15 I
15.35 I.5 4.5
15.55 J
15.75 J.5 5
15.95 K
16.15 K.5 5.5
16.35 L
16.55 L.5 6
16.75 M
16.95 M.5 6.5
17.15 N
17.35 N.5 7
Inside Diameter in Millimeters (mm) Ring Size Australia & UK Ring Size Canada & USA
17.55 O
17.75 O.5 7.5
17.95 P
18.15 P.5 8
18.35 Q
18.55 Q.5 8.5
18.70 R
18.90 R.5
19.05 S 9
19.25 S.5
19.45 T 9.5
19.65 T.5
19.85 U 10
20.05 U.5
20.25 V 10.5
20.45 V.5
20.65 W 11
20.85 W.5
20.95 X 11.5
21.15 X.5
21.35 Y 12
21.75 Z 12.5
22.15 Z+1
22.45 Z+2
22.75 Z+3
23.15 Z+4
23.55 Z+5
24.55 Z+6

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