Ring Sizer

Determine Ring Size with a Ring Size Chart

For your comfort please ensure your Rowdy Ring comfortably slides over the knuckle.

Using a ring size chart is among the simplest ways to determine ring size. First, wrap a strip of paper or string around your finger and hold it taut with no overlap. Snip or mark the string where the two ends meet, and then measure the paper or string against a ruler to the nearest 1/16th inch. Generally, 1/16th inch increases the ring size by half an inch. Find the measurement on the chart below to determine ring size.

Sizes Range from K(5 ¼ )–S(9 ¼ ) in Women.

International Ring Size Chart
US & Canada Ring SizeInside Diameter (inches)Inside Diameter (mm)Inside Circumference (mm)Ireland, UK & AustraliaFranceGermany
00.4511.5336.2
½0.4711.9537.5A
¾0.4812.1838.3A-½
10.4912.3738.9B
1 1/412.639.6B-½
1 1/20.512.7840.2C
1 3/41340.8C-½
20.5213.2141.5D41 1/213 1/2
2 1/413.4142.1D-½
2 1/20.5413.6142.8E42 3/413 3/4
2 3/413.8343.4E-½
30.5514.0544.1F4414
3 1/814.1544.5F-½
3 1/414.2544.8
3 3/814.3645.1G45 1/4
3 1/20.5714.4545.414 1/2
3 5/814.5645.7G-½
3 3/414.6546H46 1/2
40.5914.8646.7H-½15
4 1/415.0447.2I47 3/4
4 1/20.615.2748I-½15 1/4
4 5/815.448.4J4915 1/2
4 3/415.5348.8
50.6215.749.3J-½15 3/4
5 1/815.849.6K50
5 1/415.950
5 3/81650.3K-½
5 1/20.6316.150.6L51 3/416
5 3/416.351.2
5 7/816.4151.6L-½
60.6516.5151.9M52 3/416 1/2
6 1/416.7152.5M-½
6 1/20.6716.9253.2N5417
6 3/417.1353.8N-½
70.6817.3554.5O55 1/417 1/4
7 1/417.5555.1O-½
7 1/20.717.7555.8P56 1/217 3/4
7 3/417.9756.4P-½
80.7218.1957.1Q57 3/418
8 1/418.3557.6Q-½
8 1/20.7318.5358.218 1/2
8 5/818.6158.5R59
8 3/418.6958.7
8 7/818.7959R-½
90.7518.9559.519
9 1/819.160S60 1/4
9 1/419.2260.4
9 3/819.3160.7S-½
9 1/20.7619.416119 1/2
9 5/819.5161.3T61 1/2
9 3/419.6261.6
100.7819.7662.1T-½20
10 1/420.0262.9U62 3/4
10 1/20.80020.263.5U-½20 1/4
10 5/820.3263.8V63
10 3/420.4464.2
110.8120.5764.6V-½20 3/4
11 1/820.7665.2W65
11 1/420.8565.5
11 3/820.9465.8W-½
11 1/221.0866.221
11 5/80.8321.1866.5X66 1/4
11 3/421.2466.7
11 7/821.366.9X-½
120.8421.3967.2Y67 1/221 1/4
12 1/20.8621.7968.5Z68 3/421 3/4
12 3/42269.1Z-½
130.8722.269.722
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