Thursday, July 26, 2012

A Comprehensive Ring Size Chart / Ring Size Conversion Chart

A Comprehensive Ring Size Chart for US ring size, British/Irish/Australia ring size, Swiss, EURO and Japanese size plus mm and inches conversion.
In Austria, France, Germany, Belgium and Scandinavia, ring sizes are specified using actual internal circumference in mm (the same as the ISO standard).


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US/Canada
Ring sizes
Inner
Diameter
Inner
Diameter
Inner
Circum-
ference
Inner
Circum-
ference
British,
Irish,
Australian
sizes
Japanese
sizes
Swiss/Italy/
Spain/
Netherlands
sizes
Standard(inches)(mm)(inches)(mm)EquivalentEquivalentEquivalent
00.45811.61.43836.5
1/40.46611.81.46337.2
1/20.47412.01.48837.8A
3/40.48212.21.51338.4A 1/2
10.49012.41.53939.1B1
1 1/40.49812.61.56439.7B 1/2
1 1/20.50612.91.58940.4C
1 3/40.51413.11.61441.0C 1/2
20.52213.31.63941.6D21.50
2 1/40.53013.51.66442.3D 1/2
2 1/20.53813.71.68942.9E32.75
2 3/40.54613.91.71443.5E 1/2
30.55414.11.74044.2F44.00
3 1/40.56214.31.76544.8F 1/255.25
3 1/20.57014.51.79045.5G
3 3/40.57814.71.81546.1G 1/266.50
40.58614.91.84046.77
4 1/40.59415.11.86547.4H 1/27.75
4 1/20.60215.31.89048.08
4 3/40.61015.51.91548.7J9.00
50.61815.71.94149.3J 1/29
5 1/40.62615.91.96649.9K10.00
5 1/20.63416.11.99150.6K 1/210
5 3/40.64216.32.01651.2L11.75
60.65016.52.04151.8L 1/21112.75
6 1/40.65816.72.06652.512
6 1/20.66616.92.09153.1M 1/21314.00
6 3/40.67417.12.11653.8N
70.68217.32.14154.4N 1/21415.25
7 1/40.69017.52.16755.0
7 1/20.69817.72.19255.7O 1/21516.50
7 3/40.70617.92.21756.3
80.71418.12.24256.9P 1/21617.75
8 1/40.72218.32.26757.6
8 1/20.73018.52.29258.2Q 1/217
8 3/40.73818.72.31758.9R19
90.74618.92.34259.5R 1/218
9 1/40.75419.22.36860.1S20.25
9 1/20.76219.42.39360.8S 1/219
9 3/40.77019.62.41861.4T21.5
100.77819.82.44362.1T 1/220
10 1/40.78620.02.46862.7U21
10 1/20.79420.22.49363.3U 1/22222.75
10 3/40.80220.42.51864.0V
110.81020.62.54364.6V 1/223
11 1/40.81820.82.56965.2W25
11 1/20.82621.02.59465.9W 1/224
11 3/40.83421.22.61966.5X
120.84221.42.64467.2X 1/22527.50
12 1/40.85021.62.66967.8
12 1/20.85821.82.69468.4Z2628.75
12 3/40.86622.02.71969.1Z 1/2
130.87422.22.74469.727
13 1/40.88222.42.76970.3Z1
13 1/20.89022.62.79571.0
13 3/40.89822.82.82071.6Z2
140.90623.02.84572.3Z3
14 1/40.91423.22.87072.9
14 1/20.92223.42.89573.5Z4
14 3/40.93023.62.92074.2
150.93823.82.94574.8Z5
15 1/40.94624.02.97075.4
15 1/20.95424.22.99676.1
15 3/40.96224.43.02176.7Z6
160.97024.63.04677.4

Further notes and info:
There are several systems for denoting the sizes of jewellery rings in use around the world:
The ISO standard for ring sizes is ISO 8653:1986, which defines standard ring sizes in terms of the inner circumference of the ring measured in millimetres.
In the United States and Canada, ring sizes are specified using a numerical scale, with quarter and half sizes. An increase of a full size is an increase of 0.032 inch (0.8128 mm) in diameter, or roughly 1/10 inch (more precisely, 0.1005 in or 2.55 mm) in inside circumference.
In Ireland, the United Kingdom and Australia, ring sizes are specified using an alphabetical scale, with half sizes.
In India, Japan and China, ring sizes are specified using a numerical scale, that only has whole sizes, and does not have simple linear correlation with diameter or circumference.
In Austria, France, Germany, Belgium and Scandinavia, ring sizes are specified using actual internal circumference in mm (the same as the ISO standard). In some countries, half sizes may be used.
In Italy, Spain, Netherlands, and Switzerland, ring sizes are specified as the circumference minus 40mm. A 50 in Germany will be a 10 in Switzerland.(Source: wikipedia.org)