Ring Size Guide

Wrap a piece of string around the base of your finger and record the measurement in millimeters. Use the chart below to find your size given the closest measurement.

We also offer a ring sizer tool here!

US Size	Diameter	Circumference
4	14.99 mm	47 mm
4.5	15.25 mm	48 mm
5	15.7 mm	49.3 mm
5.5	16.1 mm	50.6 mm
6	16.5 mm	51.9 mm
6.5	16.92 mm	53.1 mm
7	17.32 mm	54.4 mm
7.5	17.73 mm	55.7 mm
8	18.14 mm	57 mm
8.5	18.54 mm	58.3 mm
9	18.95 mm	59.6 mm
9.5	19.40 mm	60.8 mm
10	19.80 mm	62.1 mm
10.5	20.20 mm	63.04 mm
11	20.60 mm	64.06 mm
11.5	21.00 mm	65.9 mm
12	21.40 mm	67.2 mm