Ring Sizing Chart

How to measure your finger:

1. Wrap a piece of string or paper strip around the base of your finger.

2. Mark the string or paper where it overlaps to form a complete circle.

3. Measure the length of the section of string or paper where it overlaps around the finger.

4. Compare your measurement with this chart to determine your ring size.

Ring Size
Paper Length
Inner Diameter
USA
inches
mm
inches
mm
5
2
50.8
0.625
15.8
6
2 1/8
54
0.656
16.6
7
2 1/4
57.1
0.688
17.5
8
2 3/8
60.3
0.719
18.3
9
2 1/2
63.5
0.750
19.0
10
2 5/8
66.7
0.781
19.8
11
2 3/4
69.9
0.812
20.6
12
2 7/8
73.0
0.844
21.4

You can also print out this ring sizer: RingSizer.pdf

Here are some tips to make your ring size measurement more accurate:
  • After sliding the ring sizer on, make sure it slides off easily over the knuckle.
  • Don't measure cold fingers, as this is when fingers are their smallest.
  • For the most accurate reading, measure the finger at the end of the day when the finger is the largest.
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