Ringsizely

Ring size 6 in millimetres

US ring size 6 is 16.51 mm inner diameter and 51.9 mm circumference.

16.51 mm inner Ø
Proportional only — actual on-screen size depends on your display.
US / CA
6
UK / AU
L½
EU / ISO
52
Japan
12
CH / IT / ES
12
Ø in
0.650
50 mm reference
Actual-size print check Inner diameter: 16.51 mm. Print at 100% and verify the 50 mm reference bar before comparing a ring.

This is around the average women’s ring size (US 6–6½). Compare it on the full ring size chart, or use the converter if your measurement falls between sizes.

Convert size 6: UK · EU · Japan

Frequently asked questions

What is ring size 6 in mm?

US ring size 6 has an inner diameter of 16.51 mm and an inner circumference of 51.9 mm.

What is US 6 in UK, EU and Japan ring sizes?

US 6 converts to UK L½, EU/ISO 52, Japan 12, and Switzerland/Italy/Spain 12.

Is ring size 6 small or large?

This is around the average women’s ring size (US 6–6½).