Ring Sizes

Ring Sizes

Ring sizes are measured in different ways in the USA compared to Britian and Europe. The table below compares European and British standards with the US standard.
BlackHills.com Gold Jewelry uses the US standard for ring sizes. If you are familiar with another standard, please see the table below to find the US equivalent before placing your order.

Also See Our Ring Size Exchange Policy

Normally "Whole" ring sizes are in stock, 1/2 sizes may take 2 weeks extra for delivery.

 

British Standard European
Size
American Size Inside Diameter
Inches mm
  49 5 0.6141 15.597
J     0.6145 15.6 08
    0.6223 15.806
  50   0.6266 15. 916
K   0.6300 16.002
    0.6378 16.200
  51   0.6391 16. 234
L   6 0.6455 16.396
  52   0.6517 16. 552
    0.6533 16.594
M     0.6610 16.7 89
    0.6620 16.815
  53   0.6642 16. 871
    0.6688 16.988
N     0.6765 17.1 83
  54   0.6767 17. 189
    7 0.6780 17.2 21
    0.6843 17.381
  55   0.6893 17. 507
O     0.6920 17.5 77
    0.6940 17.628
    0.6998 17.775
  56   0.7018 17. 826
P     0.7075 17.9 71
    8 0.7100 18.0 34
  57   0.7143 18. 144
    0.7153 18.169
Q     0.7230 18.3 64
    0.7265 18.453
  58   0.7269 18. 462
    0.7308 18.562
R     0.7385 18.7 58
  59   0.7394 18. 780
    9 0.7430 18.8 72
    0.7463 18.956
  60   0.7519 19. 098
S     0.7540 19.1 52
    0.7590 19.279
    0.7618 19.350
  61   0.7644 19. 416
T     0.7695 19.5 45
  62   0.7770 19. 736
    0.7772 19.741
    10 0.7780 19. 761
U     0.7850 19.9 39
  63   0.7895 20. 054
    0.7928 20.137
    10½ 0.7940 20.168
V     0.8005 20.3 33
  64   0.8020 20. 372
    0.8083 20.531
    11 0.8110 20. 599
  65   0.8146 20. 690
W     0.8160 20.7 26
    0.8238 20.925
  66 11½ 0.8271 21.008
X     0.8315 21.1 20
    0.8393 21.318
  67   0.8396 21. 326
    12 0.8430 21. 412
Y     0.8470 21.5 14
  68   0.8522 21. 645
    0.8548 21.712
    12½ 0.8590 21.819
Z     0.8625 21.9 08
  69   0.8647 21. 963
    0.8703 22.106
    13 0.8750 22. 225