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Ring Size Chart

Looking to find your ring size?

View our international ring size chart below to work out your finger size.

If you are between sizes, order a larger size. Make sure your finger is at normal body temperature (fingers shrink or expand when cold or hot). If your knuckle is much larger than your finger’s base, take two separate measurements and choose a size in between. You want a ring to fit over your knuckle, but not be too loose or it will shift around.


Find your ring size with our International Conversion Chart

Ring Dia ⌀ (Inside) Ring Circumference (Inside) ‹ International Standard Sizes ›
MM Inches MM Inches UK / AU USA / CA Europe
13.0 0.511 40.8 1.61 C 1/2 1 3/4 41
13.2 0.520 41.5 1.63 D 2 .
13.4 0.528 42.1 1.66 D 1/2 2 1/4 ·
13.6 0.536 42.8 1.68 E 2 1/2 42
13.8 0.544 43.5 1.71 E 1/2 2 3/4 ·
14.0 0.553 44.1 1.74 F 3 44
14.2 0.557 44.5 1.75 F 1/2 3 1/8 ·
14.3 0.561 44.8 1.76 F 3/4 3 1/4
14.4 0.565 45.1 1.77 G 3 3/8 45
14.5 0.568 45.4 1.79 G 1/4 3 1/2 ·
14.6 0.573 45.7 1.80 G 1/2 3 5/8 ·
14.7 0.576 46.0 1.81 H 3 3/4 46
14.9 0.585 46.7 1.84 H 1/2 4 47
15.0 0.592 47.3 1.86 I 4 1/4
·
15.3 0.601 48.0 1.89 I 1/2 4 1/2 48
15.4 0.606 48.4 1.90 J 4 5/8 .
15.5 0.611 48.8 1.92 J 1/4 4 3/4 ·
15.7 0.618 50.3 1.94 J 1/2 5 49
15.8 0.622 50.6 1.95 K 5 1/8 50
15.9 0.625 50.0 1.97 K 1/4 5 1/4 ·
16.0 0.630 50.3 1.98 K 1/2 5 3/8 ·
16.1 0.634 50.6 1.99 L 5 1/2 51
16.3 0.642 51.2 2.02 L 1/4 5 3/4 ·
16.4 0.646 51.6 2.03 L 1/2 5 7/8 52
16.5 0.650 51.9 2.04 M 6 .
16.7 0.658 52.5 2.07 M 1/2 6 1/4 53
16.9 0.666 53.2 2.09 N 6 1/2 .
17.1 0.674 53.8 2.12 N 1/2 6 3/4 54
17.4 0.683 54.5 2.15 O 7 55
17.5 0.687 54.8 2.16 O 1/2 7 1/4 ·
17.8 0.698 55.8 2.20 P 7 1/2 56
18.0 0.707 56.5 2.22 P 1/2 7 3/4 57
18.2 0.716 57.1 2.25 Q 8 .
18.4 0.722 57.7 2.27 Q 1/2 8 1/4 58
18.5 0.729 58.2 2.29 Q 3/4 8 1/2 ·
18.6 0.733 58.5 2.30 R 8 5/8 59
18.7 0.736 58.7 2.31 R 1/4 8 3/4 ·
18.8 0.740 59.1 2.32 R 1/2 8 7/8 ·
18.9 0.743 59.3 2.35 R 3/4 9 ·
19.1 0.752 60.0 2.36 S 9 1/8 60
19.2 0.757 60.4 2.38 S 1/4 9 1/4 ·
19.3 0.760 60.7 2.39 S 1/2 9 3/8 61
19.4 0.764 61.0 2.40 S 3/4 9 1/2 ·
19.5 0.768 61.3 2.41 T 9 5/8 .
19.6 0.772 61.6 2.43 T 1/4 9 3/4 ·
19.8 0.781 62.3 2.45 T 1/2 10 62
20.0 0.780 62.9 2.48 U 10 1/4 .
20.2 0.795 63.5 2.50 U 1/2 10 1/2 63
20.3 0.800 63.8 2.51 V 10 5/8 64
20.4 0.805 64.2 2.53 V 1/4 10 3/4 ·
20.7 0.814 65.0 2.56 V 1/2 11 ·
20.8 0.817 65.2 2.57 W 11 1/8 65
20.9 0.821 65.5 2.58 W 1/4 11 1/4 ·
20.9 0.824 65.8 2.59 W 1/2 11 3/8 66
21.0 0.830 66.2 2.61 W 3/4 11 1/2 ·
21.2 0.834 66.5 2.62 X 11 5/8 .
21.2 0.836 66.7 2.63 X 1/4 11 3/4 ·
21.3 0.838 66.9 2.64 X 1/2 11 7/8 67
21.5 0.846 67.5 2.66 Y 12 .
21.7 0.854 68.1 2.68 Y 1/2 12 1/4 ·
21.9 0.861 68.8 2.71 Z 12 1/2 68
22.1 0.870 69.4 2.73 Z +1/2 12 3/4 69
22.3 0.879 70.2 2.76 Z+1 13 70
22.6 0.890 71.0 2.80 Z+1.5 13.5 ·
22.7 0.893 71.3 2.81 Z+2 · ·