Ring Size Chart

Did you know men's and women's rings and wedding bands sizes are the same? Rings are sized by a constant measurement of the inner diameter of the band. Men's rings size 9 measures that same as a women's size 9. Bands will vary on the width affecting the size and comfort.
Important note: The more wide a band, the larger ring size may be required. The inner diameter might be the same, but a wider band will feel tighter due to the amount of metal in contact with your finger and knuckle as it slides down onto your finger. If you wear a size 7 in a thin 1.5mm wide band, a size 7 in a wider 8mm band may feel tight, even if both are a size 7.
We recommend a half or full size larger if you're transferring from a thin band to a much wider band. We have an easy exchange process if you order the wrong inner diameter. If you do not know your ring size, we suggest you get our quick finger sizing tool.
Finger Measurement
String/Paper
Length Inch
Decimal
Finger Measurement
String/Paper
Length Inch
Fractions
Inner Ring
Diameter
in Inches
USA
Finger Measurement
String/Paper
Length Millimeters
Inner Ring
Diameter in
Millimeters
UK
European
Japanese
1.74 1 3/4 .553 3 44.20 14.05 F 45 or 5 5
1.85 1 27/32 .588 4 46.99 14.95 G 47 or 7 7
1.95 1 15/16 .620 5 49.53 15.75 H 49 or 9 9
2.05 2 1/16 .652 6 52.07 16.57 J 51 or 11 11
2.09 2 3/32 .665 6.5 53.09 16.55 K 52 or 12 12
2.16 2 5/32 .688 7 54.86 17.48 L 53 or 13 13
2.19 2 3/16 .697 7.5 55.63 17.72 M 54 or 14 14
2.25 2 1/4 .717 8 57.15 18.22 N 55 or 15 15
2.29 2 9/32 .730 8.5 58.17 18.55 O 56 or 16 16
2.34 2 11/32 .745 9 59.44 18.93 P 57 or 17 17
2.41 2 13/32 .767 9.5 61.21 19.48 Q 58 or 18 18
2.44 2 7/16 .778 10 61.98 19.78 R 59 or 19 19
2.50 2 1/2 .794 10.5 63.50 20.17 S 60 or 20 20
2.55 2 9/16 .812 11 64.77 20.62 T 61 or 21 21
2.66 2 21/32 .846 12 67.56 21.47 V 63 or 23 23
2.76 2 3/4 .878 13 70.10 22.28 X 65 or 25 25
2.87 2 7/8 .912 14 72.90 23.16 Z 67 or 27 27
2.95 2 15/16 .939 15 74.93 23.85 Z+2 69 or 29 29
3.05 3 1/16 .970 16 77.47 24.64 Z+4 71 or 31 31
3.16 3 5/32 1.005 17 80.26 25.53 Z+6 73 or 33 33

Ring Widths