Engagement Ring Size Chart & Conversions

Engagement ring size classifications are different in various parts of the world. The table below will give you some guidelines for the most commonly used measurements.

Printable Ring Sizing & Measuring Tool

engagement ring size chart

If you need to measure for ring size first, we offer a printable page (pdf) that includes various ring sizes so that you can place an existing ring on top of the illustrated sizes.

We also provide a ring sizing tool which you cut out and wrap around the finger to get your measurement. Just follow the instructions included on the page.

Click on Engagement Ring Size Kit or the image at the right to download and print the file.

Ring Size Conversion Chart

amercan flag uk flag french flag swiss flag german flag japan flag Diameter (mm) Circum.
USA/Canada UK France Swiss Germany Japan    
3 F 44 4 14 4 14.0 -
3 1/2 G 45 1/4 5 1/3 14 1/2 5 1/2 14.4 -
4 H 1/2 46 1/2 6 1/2 15 7 14.8 46.5
4 1/2 I 1/2 47 3/4 8 15 1/4 8 15.2 48
5 J 1/2 49 9 1/2 15 3/4 9 15.6 49
5 1/2 L 50 3/4 10 3/4 16 10 1/2 16.0 50.5
6 M 51 1/2 12 3/4 16 1/2 12 16.5 52
6 1/2 N 52 3/4 14 17 13 16.9 53
7 O 54 15 1/4 17 1/4 14 17.3 54.5
7 1/2 P 55 1/4 16 1/2 17 3/4 15 17.7 55.5
8 Q 56 3/4 17 3/4 18 16 18.2 57
8 1/2 Q 1/2 58 18 1/2 18 1/2 17 18.6 58
9 R 1/2 59 1/4 20 19 18 19.0 59.5
9 1/2 S 1/2 60 3/4 21 19 1/2 19 19.4 61
10 T 1/2 61 3/4 21 3/4 20 20 19.8 62
10 1/2 U 1/2 62 3/4 22 3/4 20 1/4 22 20.2 63.5
11 V 1/2 64 1/4 24 20 3/4 23 20.6 64.5
11 1/2 W 1/2 66 25 3/4 21 24 21.0 66
12 Y 67 1/4 27 1/2 21 1/4 25 21.4 67.5
12 1/2 Z 68 28 3/4 21 3/4 26 21.8 68.5
13 Z + 1 69 29 1/4 22 27 22.2 70
13 1/2 Z + 2 - - - - 22.6 71
14 Z + 3 - - - - - 72.5
14 1/2 Z + 4 - - - - - 74
15 Z + 5 - - - - - 75

Guys, if you're looking for some ideas on how to figure out her ring size, check out this page for some helpful tips on figuring out what style wedding and engagement ring to get and determining her ring size.

We hope you found this engagement ring size conversion chart helpful.

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