WeddingBands.com - International Ring Sizing Chart


This table shows the ring sizes conversion for different countries and the internal diameters correspond to those sizes. Please e-mail us at AskUs@WeddingBands.com  if you have any questions.

Size Diameter (in) Diameter (mm) British French German Japanese Swiss
00.45811.63--36.511.63----
0.250.46611.84--37.211.84----
0.50.47412.04A37.812.04----
0.750.48212.24A 1/238.512.24----
10.4912.45B39.112.451--
1.250.49812.65B 1/239.712.65----
1.50.50612.85C40.412.85--0.5
1.750.51413.06C 1/24113.06--1
20.52213.26D41.713.2621.75
2.250.5313.46D 1/242.313.46--2.25
2.50.53813.67E42.913.6733
2.750.54613.87E 1/243.613.87--3.5
30.55414.07F44.214.0744.25
3.250.56214.27F 1/244.814.2754.75
3.50.5714.48G45.514.48--5.5
3.750.57814.68G 1/246.114.6866
40.58614.88H46.814.8876.75
4.250.59415.09H 1/247.415.09--7.5
4.50.60215.29I4815.2988
4.750.6115.49J48.715.49--8.75
50.61815.7J 1/249.315.799.25
5.250.62615.9K5015.9--10
5.50.63416.1K 1/250.616.11010.5
5.750.64216.31L51.216.31--11.25
60.6516.51L 1/251.916.511111.75
6.250.65816.71M52.516.711212.5
6.50.66616.92M 1/253.116.921313.25
6.750.67417.12N53.817.12--13.75
70.68217.32N 1/254.417.321414.5
7.250.6917.53O55.117.53--15
7.50.69817.73O 1/255.717.731515.75
7.750.70617.93P56.317.93--16.25
80.71418.14P 1/25718.141617
8.250.72218.34Q57.618.34--17.5
8.50.7318.54Q 1/258.318.541718.25
8.750.73818.75R58.918.75--19
90.74618.95R 1/259.518.951819.5
9.250.75419.15S60.219.15--20.25
9.50.76219.35S 1/260.819.351920.75
9.750.7719.56T61.419.56--21.5
100.77819.76T 1/262.119.762022
10.250.78619.96U62.719.962122.75
10.50.79420.17U 1/263.420.172223.25
10.750.80220.37V6420.37--24
110.8120.57V 1/264.620.572324.75
11.250.81820.78W65.320.78--25.25
11.50.82620.98W 1/265.920.982426
11.750.83421.18X66.621.18--26.5
120.84221.39X 1/267.221.392527.25
12.250.8521.59Y67.821.59--27.75
12.50.85821.79Z68.521.792628.5
12.750.86622Z 1/269.122--29
130.87422.2--69.722.22729.75
13.250.882522.4Z170.422.4--30.5
13.50.8922.61--7122.61--31
13.750.89822.81Z271.722.81--31.75
140.90623.01Z372.323.01--32.25
14.250.91423.22--72.923.22--33
14.50.92223.42Z473.623.42--33.5
14.750.9323.62--74.223.62--34.25
150.93823.83--74.823.83--34.75
15.250.94624.03--75.524.03--35.5
15.50.95424.23--76.124.23--36.25