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Measure a Ring You Already Own

How to find your ring size using a ring you already own

The fastest way to find your ring size is by measuring a ring you already own.

What you need:

1. Your Ring Ring

2. A Ruler

How to do it :

1. Place the ring on the ruler, see the inside diameter of the ring.

2. Use the conversion chat below to convert the diameter into your Ring Size

Conversion Chart

US Size

Circumference (mm)

Inside Diameter (mm)

6

51.9

16.51

7

54.5

17.32

8

57.0

18.14

9

59.5

18.95

10

62.1

19.76

11

64.6

20.57

12

67.2

21.39

13

69.7

22.20

14

72.3

23.01

Don't own a ring?

Don't worry, we have other ways to calculate your ring size. See Ring Size Guides

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