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  • RING SIZE CONVERSION CHART
Postage & Payment
buyer pays all postage costs; royal mail special delivery [next day and insured] is £4.95 or recorded delivery is £3.50 international bidders email for correct postage to your country - goods will be sent as soon as any payments have cleared
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USA Britain Japan Europe Diameter Diameter Circumference Circumference
Canada Australia   Swiss Internal (inches) Internal (mm) Internal (inches) Internal (mm)
0       0.458 11.6 1.438 36.5
1/4       0.466 11.8 1.463 37.2
1/2 A     0.474 12 1.488 37.8
3/4 A 1/2     0.482 12.2 1.513 38.4
1 B 1   0.49 12.4 1.539 39.1
1 1/4 B 1/2     0.498 12.6 1.564 39.7
1 1/2 C     0.506 12.9 1.589 40.4
1 3/4 C 1/2     0.514 13.1 1.614 41
2 D 2 1.5 0.522 13.3 1.639 41.6
2 1/4 D 1/2     0.53 13.5 1.664 42.3
2 1/2 E 3 2.75 0.538 13.7 1.689 42.9
2 3/4 E 1/2     0.546 13.9 1.714 43.5
3 F 4 4 0.554 14.1 1.74 44.2
3 1/4 F 1/2 5 5.25 0.562 14.3 1.765 44.8
3 1/2 G     0.57 14.5 1.79 45.5
3 3/4 G 1/2 6 6.5 0.578 14.7 1.815 46.1
4 7   0.586 14.9 1.84 46.7
4 1/4 H 1/2   7.75 0.594 15.1 1.865 47.4
4 1/2 8   0.602 15.3 1.89 48
4 3/4 J   9 0.61 15.5 1.915 48.7
5 J 1/2 9   0.618 15.7 1.941 49.3
5 1/4 K   10 0.626 15.9 1.966 49.9
5 1/2 K 1/2 10   0.634 16.1 1.991 50.6
5 3/4 L   11.75 0.642 16.3 2.016 51.2
6 L 1/2 11 12.75 0.65 16.5 2.041 51.8
6 1/4 12   0.658 16.7 2.066 52.5
6 1/2 M 1/2 13 14 0.666 16.9 2.091 53.1
6 3/4 N     0.674 17.1 2.116 53.8
7 N 1/2 14 15.25 0.682 17.3 2.141 54.4
7 1/4     0.69 17.5 2.167 55
7 1/2 O 1/2 15 16.5 0.698 17.7 2.192 55.7
7 3/4     0.706 17.9 2.217 56.3
8 P 1/2 16 17.75 0.714 18.1 2.242 56.9
8 1/4     0.722 18.3 2.267 57.6
8 1/2 Q 1/2 17   0.73 18.5 2.292 58.2
8 3/4 R   19 0.738 18.7 2.317 58.9
9 R 1/2 18   0.746 18.9 2.342 59.5
9 1/4 S   20.25 0.754 19.2 2.368 60.1
9 1/2 S 1/2 19   0.762 19.4 2.393 60.8
9 3/4 T   21.5 0.77 19.6 2.418 61.4
10 T 1/2 20   0.778 19.8 2.443 62.1
10 1/4 U 21   0.786 20 2.468 62.7
10 1/2 U 1/2 22 22.75 0.794 20.2 2.493 63.3
10 3/4 V     0.802 20.4 2.518 64
11 V 1/2 23   0.81 20.6 2.543 64.6
11 1/4 W   25 0.818 20.8 2.569 65.2
11 1/2 W 1/2 24   0.826 21 2.594 65.9
11 3/4 X     0.834 21.2 2.619 66.5
12 X 1/2 25 27.5 0.842 21.4 2.644 67.2
12 1/4     0.85 21.6 2.669 67.8
12 1/2 Z 26 28.75 0.858 21.8 2.694 68.4
12 3/4 Z 1/2     0.866 22 2.719 69.1
13   27   0.874 22.2 2.744 69.7
13 1/4 Z1     0.882 22.4 2.769 70.3
13 1/2       0.89 22.6 2.795 71
13 3/4 Z2     0.898 22.8 2.82 71.6
14 Z3     0.906 23 2.845 72.3
14 1/4       0.914 23.2 2.87 72.9
14 1/2 Z4     0.922 23.4 2.895 73.5
14 3/4       0.93 23.6 2.92 74.2
15 Z5      0.938 23.8 2.945 74.8
15 1/4       0.946 24 2.97 75.4
15 1/2       0.954 24.2 2.996 76.1
15 3/4       0.962 24.4 3.021 76.7
16       0.97 24.6 3.046 77.4