How to Measure Your Ring Size at Home

• Option 1: Use a Ring You Already Own

  1. Find a ring that fits comfortably on the finger you’ll wear your new ring.

  2. Measure the inside diameter in millimeters using a ruler or caliper.

  3. Use the chart below to match the diameter to your ring size.

• Option 2: String or Paper Strip Method

  1. Cut a thin strip of paper or use a piece of string.

  2. Wrap it around the base of your finger (snug but not tight).

  3. Mark where the ends meet.

  4. Measure the length in millimeters with a ruler.

  5. Match the measurement to the circumference column in the chart below.

Tips:

• Measure at the end of the day when fingers are largest.

• Avoid measuring when your hands are cold.

• If between sizes, choose the larger size for comfort.

Ring Size Chart

US Size Inside Diameter (mm) Finger Circumference (mm).

4 14.8 46.5

5 15.7 49.3

6 16.5 51.9

7 17.3 54.4

8 18.1 57.0

9 18.9 59.5

10 19.8 62.1

11 20.6 64.6

12 21.4 67.2