Sizing Guide for Rings

All our rings use US sizing. Measure your finger with a strip of paper, or measure a ring that already fits you, then find your size in the chart below.

No ring?

Measure your finger

Here you measure the circumference — the distance around your finger.

Wrap a paper strip around your finger, mark it, and measure it with a ruler
  • STEP 1Cut a piece of string or a thin strip of paper.
  • STEP 2Wrap it around the base of your finger.
  • STEP 3Mark where the string or paper meets.
  • STEP 4Measure the length with a ruler (in millimeters).
  • STEP 5Find your number in the Circumference column below.

I have a ring

Measure a ring that fits

Already own a ring that fits well? Measure it — it's the most accurate way.

  • STEP 1Pick a ring that fits the finger you're buying for.
  • STEP 2Measure the inside diameter in millimeters, edge to edge.
DIAMETER
  • STEP 3Find your number in the Diameter column below.

Ring size chart

US size Diameter (mm) Circumference (mm) EU UK / AU
4 14.9 46.8 47 H½
5 15.7 49.3 49 J½
6 16.5 51.9 52 L½
7 17.3 54.4 54 N½
8 18.1 57.0 57 P½
9 18.9 59.5 60 R½
10 19.8 62.1 62 T½
11 20.6 64.6 65 V½
12 21.4 67.2 67 X½
13 22.2 69.7 70 Z½

Between sizes? Choose the larger one — fingers swell slightly in warm weather and later in the day.