Size Chart - BLAZKO Jewellery WebShop

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Size Chart

We use Polish Ring Size system stated in the chart below. It starts with size 1 at 12.666 millimeters and increases in increments of 1/3 millimeter.

To check your ring size you may ask your local jeweler for help and professional measure. At home You can try to measure the inside diameter of a ring that You already have using a caliper - we'll need exact diameter in millimeters.

You can also visit internet sites (eg. International Ring Size Convertion Chart), where you can find some easy ways to measure your ring size - not so accurate though. If You have any questions or need help choosing your ring please email us: sklep@blazko.pl

Size Number	Inside Diameter MM	Inside Circumference MM
1	12,67	39,80
2	13,00	40,84
3	13,33	41,88
4	13,67	42,95
5	14,00	43,98
6	14,33	45,02
7	14,67	46,09
8	15,00	47,12
9	15,33	48,16
10	15,67	49,23
11	16,00	50,27
12	16,33	51,30
13	16,67	52,37
14	17,00	56,55
15	17,33	54,44
16	17,67	55,51
17	18,00	56,55
18	18,33	57,59
19	18,67	58,65
20	19,00	59,69
21	19,33	60,73
22	19,67	61,80
23	20,00	62,83
24	20,33	63,87
25	20,67	64,94
26	21,00	65,97
27	21,33	67,01
28	21,67	68,08
29	22,00	69,12
30	22,33	70,15
31	22,67	71,22
32	23,00	72,26
33	23,33	73,29