Ring Size Guide

Ring Size Guide

Find your ring size using one of the two simple methods below.

METHOD 1: Measure an Existing Ring

  • Select a ring that properly fits your target finger.
  • Measure the internal diameter of the ring using a ruler (in millimeters).
  • Compare your measurement to the chart below to find your size.

METHOD 2: Measure Your Finger

  • Wrap a strip of paper or string snugly around the base of your finger.
  • Mark the point where the ends meet with a pen.
  • Measure the length of the paper against a ruler to get your circumference.
  • Match and find your size

U.S. ring sizes 4 to 11 with finger circumference and ring diameter in millimeters; values are listed in the table below.

Ring size chart — measurements shown in the guide
U.S. ring size Finger circumference (mm) Ring diameter (mm)
4 46.68 14.86
4.5 47.97 15.27
5 49.32 15.70
5.5 50.58 16.10
6 51.87 16.51
6.5 53.16 16.92
7 54.51 17.35
7.5 55.76 17.75
8 57.15 18.19
8.5 58.21 18.53
9 59.34 18.89
9.5 60.98 19.41
10 62.32 19.84
10.5 63.46 20.20
11 64.97 20.68