Finger Sizing and Ring Size Chart

Clothes and shoes are measured differently for men and women. However, men's and women's ring size is measured the same. Ring size is measured on a ring mandrel by the inner diameter of the band. When measured, a men's ring size nine measures the same as a women's ring size nine.

Important note: Ring bands will vary on the width. A wider band may require a larger size ring. The inner diameter might be the same, but a wider band will feel tight due to the amount of metal in contact with your finger.

If you wear a size 7 in a thin 1.5mm wide band, a size 7 in an 8mm wide band may feel tight even knowing both are a size 7. We recommend a larger half or full ring size if you shift from a thin band to a more wide band.

We have an easy exchange process if you order the wrong inner diameter. If you do not know your ring size, we have a quick finger sizing tool here.

Not familiar with ring sizes?

View our Ring Size Chart below for measurements.

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