Ring Size Guide

Option 1: Measure your finger

1. Grab a tape measure, length of string or strip of paper.
2. Wrap it around the finger you’ll wear your ring on - if you’re creating a ring stack, consider where on your finger the ring will sit - and mark the place where it joins.
3. Lay your string or paper strip on a flat surface and use a ruler to measure the length up to the mark. Use the circumference in the chart below to match the measurement to the closest ring size.

Option 2: Measure existing ring

1. Choose a ring that already fits your finger well.
2. Measure the interior diameter of the ring in millimeters (mm).
3. Use the diameter in the measurement chart below to match the size of your ring to the closest size in mm. 

Alternatively you can simply download and print this page in A4 format (page scale must be set to “none” in the print settings) and place your ring on the circles. 

Circumference
(in mm)

Diameter
(in mm)

Italy

UK

USA

48

15.08

8

I1/2

4.5

49

15.39

9

J

4.75

50

15.92

10

J1/2

5.25

51

16.24

11

K1/2

5.75

52

16.56

12

L

6

53

16.88

13

M

6.5

54

17.20

14

N

7

55

17.52

15

N1/2

7.25

56

17.83

16

O

7.5

57

18.15

17

P

8

58

18.47

18

Q

8.5

59

18.79

19

Q1/2

9

60

19.11

20

R1/2

9.25

61

19.43

21

S1/2

9.5