Ring Sizing Guide

The information presented here has been compiled from many sources across various countries, to help you determine your local ring size compared to those from other countries. The standards included in this resource are from the US & Canada, United Kingdom & Australia, France & Russia, Germany, Japan and Switzerland.

With the continuing increase in consumers purchasing goods through worldwide online shopping, there is a requirement to ensure that potentially expensive purchases like rings are sized properly right from the start. This resource should help you with that.

Downloadable Ring Sizing Guide

Giannis Jewellers has prepared a sizing guide that you can download and print to help you pick your size.

Inside Diameter
(MM)
Inside Diameter
(Inches)
Inside Circumference
(MM)
Inside Circumference
(Inches)
British & AustralianUS & CanadaFrench & RussianGermanJapaneseSwiss
9.910.39031.131.22-0000----
10.720.44233.681.39-00----
11.530.45436.221.43-0----
11.950.47437.541.49A1/2----
12.180.48238.261.51A 1/23/4--1-
12.370.48738.861.53B1----
12.600.49639.581.56B 1/21 1/4----
12.780.50340.151.58C1 1/2----
13.000.51240.841.61C 1/21 3/4----
13.210.52041.501.63D241 1/213 1/221 1/2
13.410.52842.131.66D 1/22 1/4----
13.610.53642.761.68E2 1/242 3/413 3/432 3/4
13.830.54443.451.71E 1/22 3/4----
14.050.55344.141.74F3441444
14.150.55744.451.75F 1/23 1/8----
14.250.56144.771.76F 3/43 1/4----
14.360.56545.111.77G3 3/845 1/4-55 1/4
14.450.56945.401.79G 1/43 1/2-14 1/2--
14.560.57345.741.80G 1/23 5/8--6-
14.650.57746.021.81H3 3/446 1/2--6 1/2
14.860.58546.681.84H 1/24-157-
15.040.59247.251.86I4 1/447 3/4--7 3/4
15.270.60147.971.89I 1/24 1/2-15 1/48-
15.400.60648.381.90J4 5/84915 1/2-9
15.530.61148.791.92J 1/44 3/4----
15.700.61849.321.94J 1/25-15 3/49-
15.800.62249.641.95K5 1/850--10
15.900.62649.951.97K 1/45 1/4----
16.000.63050.271.98K 1/25 3/8--10-
16.100.63450.581.99L5 1/251 3/416-11 3/4
16.300.64251.212.02L 1/45 3/4----
16.410.64651.552.03L 1/25 7/8----
16.510.65051.872.04M652 3/416 1/21212 3/4
16.710.65852.502.07M 1/26 1/4----
16.920.66653.162.09N6 1/254171314
17.130.67453.822.12N 1/26 3/4----
17.350.68354.512.15O755 1/417 1/41415 1/4
17.450.68754.822.16O 1/27 1/4----
17.750.69955.762.20P7 1/256 1/217 3/41516 1/2
17.970.70756.452.22P 1/27 3/4----
18.190.71657.152.25Q857 3/4181617 3/4
18.350.72257.652.27Q 1/28 1/4----
18.530.72958.212.29Q 3/48 1/2-18 1/217-
18.610.73358.472.30R8 5/859--19
18.690.73658.722.31R 1/48 3/4----
18.800.74059.062.32R 1/28 7/8----
18.890.74859.342.35R 3/49-1918-
19.100.75260.002.36S9 1/860 1/4--20 1/4
19.220.75760.382.38S 1/49 1/4----
19.310.76060.662.39S 1/29 3/8----
19.410.76460.982.40S 3/49 1/2-19 1/219-
19.510.76861.292.41T9 5/861 1/2--21 1/2
19.620.77261.642.43T 1/49 3/4----
19.840.78162.332.45T 1/210-2020-
20.020.78862.892.48U10 1/462 3/4-2122 3/4
20.200.79763.462.50U 1/210 1/2-20 1/422-
20.320.80063.842.51V10 5/863--23 3/4
20.440.80564.212.53V 1/410 3/4----
20.680.81464.972.56V 1/211-20 3/423-
20.760.81765.222.57W11 1/865--25
20.850.82165.502.58W 1/411 1/4----
20.940.82465.782.59W 1/211 3/8----
21.080.83066.222.61W 3/411 1/2-2124-
21.180.83466.542.62X11 5/866 1/4--26 1/4
21.240.83666.732.63X 1/411 3/4----
21.300.83966.922.64X 1/211 7/8----
21.490.84667.512.66Y1267 1/221 1/42527 1/2
21.690.85468.142.68Y 1/212 1/4----
21.890.86268.772.71Z12 1/268 3/421 3/42628 3/4
22.100.87069.432.73Z +1/212 1/268 3/421 3/42628 3/4
22.330.87970.152.76Z+113-2227-
22.600.89071.002.80Z+1.513.5----
22.690.89371.282.81Z+2-----
22.920.90272.002.83Z+2.5-----
23.060.90872.452.85Z+3-----
23.240.91573.012.87Z+3.5-----
23.470.92473.732.90Z+4-----
23.550.92773.982.91Z+4.5-----
23.870.94074.992.95Z+5-----
24.270.95676.253.00Z+6-----