Home / FAQ articles / The Process / How is ring size determined?

How is ring size determined?

We’ve created this ring sizer that you can download for free to help you take the correct measurements.

Important! When you print the document, make sure you specify actual size, in the print instructions so that the tapes print out accurately.

Don’t know your finger measurement?

Measuring your finger for ring size is easy. If you already have a ring that fits just right, just measure the space from one interior side to the other interior side (the diameter). This will give you your ring measurement.

If you don’t have that perfectly fitted ring, there’s an easy workaround for that too. You’ll need some paper, a pen or pencil, scissors and measuring tape (or a ruler). Here’s what you’ll need to do:

Cut a thin strip of paper (approx. ⅛” – ¼” wide) that can wrap around your finger one time. It should fit securely enough around your finger so that it’s not so loose that is might fall off, but not so tight to make it uncomfortable when worn.

Use your pen or pencil to draw a line where the paper ends on your finger. Then, lay the marked strip of paper out flat and measure the length of the paper from your mark to the end of the strip. That number is your ring measurement.

Now that you have your measurement, you can proceed to the next step by looking for your measurement in the table below to find your comparable ring size.

 

 

Areas Inside Diameter Inside Circumference
USA, Canada and Mexico UK, Ireland, Australia and New Zealand China, Japan, South America India Italy, Spain, Netherlands, Switzerland (in) (mm) (in) (mm)
0 0.458 11.63 1.44 36.5
¼ 0.466 11.84 1.46 37.2
½ A 0.474 12.04 1.49 37.8
¾ A½ 0.482 12.24 1.51 38.5
1 B 1 0.49 12.45 1.54 39.1
1¼ B½ 0.498 12.65 1.56 39.7
1½ C 0.5 0.506 12.85 1.59 40.4
1¾ C½ 1 1 0.514 13.06 1.61 41
2 D 2 2 1.75 0.522 13.26 1.64 41.7
2¼ D½ 2.25 0.53 13.46 1.67 42.3
2.5 E 3 3 3 0.538 13.67 1.69 42.9
2¾ E½ 4 3.5 0.546 13.87 1.72 43.6
3 F 4 4.25 0.554 14.07 1.74 44.2
3.25 F½ 5 5 4.75 0.562 14.27 1.77 44.8
3.5 G 5.5 0.57 14.48 1.79 45.5
3.75 G½ 6 6 6 0.578 14.68 1.82 46.1
4 H 7 6.75 0.586 14.88 1.84 46.8
4.25 H½ 7 7.5 0.594 15.09 1.87 47.4
4.5 I 8 8 8 0.602 15.29 1.89 48
4.75 J 9 8.75 0.61 15.49 1.92 48.7
5 J½ 9 9.25 0.618 15.7 1.94 49.3
5.25 K 10 10 0.626 15.9 1.97 50
5.5 K½ 10 10.5 0.634 16.1 1.99 50.6
5.75 L 11 11.25 0.642 16.31 2.02 51.2
6 L½ 11 12 11.75 0.65 16.51 2.04 51.9
6.25 M 12 12.5 0.658 16.71 2.07 52.5
6.5 M½ 13 13 13.25 0.666 16.92 2.09 53.1
6.75 N 13.75 0.674 17.12 2.12 53.8
7 N½ 14 14 14.5 0.682 17.32 2.14 54.4
7.25 O 15 15 0.69 17.53 2.17 55.1
7.5 O½ 15 15.75 0.698 17.73 2.19 55.7
7.75 P 16 16.25 0.706 17.93 2.22 56.3
8 P½ 16 17 17 0.714 18.14 2.24 57
8.25 Q 17.5 0.722 18.34 2.27 57.6
8.5 Q½ 17 18 18.25 0.73 18.54 2.29 58.3
8.75 R 19 19 0.738 18.75 2.32 58.9
9 R½ 18 19.5 0.746 18.95 2.34 59.5
9.25 S 20 20.25 0.754 19.15 2.37 60.2
9.5 S½ 19 21 20.75 0.762 19.35 2.39 60.8
9.75 T 21.5 0.77 19.56 2.42 61.4
10 T½ 20 22 22 0.778 19.76 2.44 62.1
10.25 U 21 23 22.75 0.786 19.96 2.47 62.7
10.5 U½ 22 23.25 0.794 20.17 2.49 63.4
10.75 V 24 24 0.802 20.37 2.52 64
11 V½ 23 25 24.75 0.81 20.57 2.54 64.6
11.25 W 25.25 0.818 20.78 2.57 65.3
11.5 W½ 24 26 26 0.826 20.98 2.59 65.9
11.75 X 26.5 0.834 21.18 2.62 66.6
12 X½ 25 27 27.25 0.842 21.39 2.65 67.2
12.25 Y 28 27.75 0.85 21.59 2.67 67.8
12.5 Z 26 28.5 0.858 21.79 2.7 68.5
12.75 Z½ 29 29 0.866 22 2.72 69.1
13 27 30 29.75 0.874 22.2 2.75 69.7
13.25 Z1 30.5 0.882 22.4 2.77 70.4
13½ 31 31 0.89 22.61 2.8 71
13.75 Z2 32 31.75 0.898 22.81 2.82 71.7
14 Z3 32.25 0.906 23.01 2.85 72.3
14.25 33 33 0.914 23.22 2.87 72.9
14.5 Z4 33.5 0.922 23.42 2.9 73.6
14.75 34 34.25 0.93 23.62 2.92 74.2
15 35 34.75 0.938 23.83 2.95 74.8
15.25 35.5 0.946 24.03 2.97 75.5
15.5 36 36.25 0.954 24.23 3 76.1
15.75 36.75 0.962 24.43 3.02 76.8
16 37 37.5 0.97 24.64 3.05 77.4

 

Previous post