Ring Size Guide

All Ava Lockhart rings are listed in US sizes. Use the chart below to convert your measurement or your usual UK size.

US / Canada UK Circumference (mm)
3 F ½ 44.2
4 H ½ 46.8
5 J ½ 49.3
6 L ½ 51.9
7 O 54.4
8 Q 57.0
9 S 59.5
10 T ½ 62.1
11 V ½ 64.6
12 Y 67.2

Need a hand?

How do I measure at home?

No ring sizer? No problem. Cut a thin strip of paper and wrap it snugly around the base of the finger you plan to wear your ring on. Mark the exact point where the paper overlaps, lay it flat, and measure to the mark in millimeters. That number is your circumference — match it to the chart above to find your US size.

Between two sizes?

Go with the larger one. A ring with a little extra room is more comfortable for everyday wear and far easier to slip on and off. Still torn? Message us before you order and we’ll help you decide.

Still not sure?

We’re happy to help you find your fit — email us at support@avalockhart.com and we’ll make sure you get it right the first time.