Ring Size Guide

Please refer to the table below for approximate ring size comparisons. Many rings can also be resized.

Najo Size	USA	British	Inside Circumference	Inside Diameter
	3	E 1/2	43.5 mm	13.8 mm
	4	H 1/2	46.5 mm	15.0 mm
	5	J 1/2	49.0 mm	15.75 mm
X Small	6	L1/2	52.0 mm	16.5 mm
Small	7	N 1/2	55.0 mm	17.5 mm
Medium	8	P 1/2	57.0 mm	18.0 mm
Large	9	R 1/2	60.0 mm	19.0 mm
X Large	10	T 1/2	62.0 mm	22.0 mm

All rings come in a S, M and L. Limited styles are available in XS and XL. Type XS or XL in the search bar to view the full range in those sizes.

For help ring sizing, head to our blog: How to Ring Size

Find the perfect fit with our NAJO Ring Sizer