Ring Size Guide

Finding the right ring size helps ensure a comfortable and secure fit. Use one of the measurement methods below, then compare your measurement with our international ring size chart.

Method 1: Measure an Existing Ring

  1. Choose a ring that already fits the intended finger comfortably.
  2. Place the ring on a flat surface.
  3. Measure the inside diameter from one inner edge to the opposite inner edge.
  4. Compare the diameter in millimetres with the chart below.

Important: Measure only the inside of the ring. Do not include the thickness of the ring band.

Method 2: Measure Your Finger

  1. Wrap a thin strip of paper or non-stretch string around the base of your finger.
  2. Make sure it feels comfortable and is not pulled too tightly.
  3. Mark the point where the two ends meet.
  4. Lay the paper or string flat and measure the length in millimetres.
  5. Use the finger circumference column in the chart to find your ring size.

International Ring Size Chart

US Ring Size Inside Diameter Finger Circumference Approx. EU Size
4 14.9 mm 46.8 mm 47
4.5 15.3 mm 48.0 mm 48
5 15.7 mm 49.3 mm 49
5.5 16.1 mm 50.6 mm 51
6 16.5 mm 51.9 mm 52
6.5 16.9 mm 53.1 mm 53
7 17.3 mm 54.4 mm 54
7.5 17.7 mm 55.7 mm 56
8 18.1 mm 57.0 mm 57
8.5 18.5 mm 58.2 mm 58
9 18.9 mm 59.5 mm 60
9.5 19.4 mm 60.8 mm 61
10 19.8 mm 62.1 mm 62
10.5 20.2 mm 63.3 mm 63
11 20.6 mm 64.6 mm 65
11.5 21.0 mm 65.9 mm 66
12 21.4 mm 67.2 mm 67
12.5 21.8 mm 68.5 mm 68
13 22.2 mm 69.7 mm 70

Tips for an Accurate Measurement

  • Measure your finger two or three times for greater accuracy.
  • Measure near the end of the day, when your fingers are usually at their normal or slightly larger size.
  • Avoid measuring when your hands are unusually cold or hot.
  • Make sure the selected size can pass comfortably over your knuckle.
  • For wider ring bands, consider choosing half a size larger for a more comfortable fit.
  • When your measurement falls between two sizes, choose the larger size.
Please note: This chart is intended as a general sizing guide. Small differences may occur depending on the ring design, band width and measurement method. Please contact us when you need help selecting the most suitable size.