Ring size 7 in millimetres

US ring size 7 is 17.32 mm inner diameter and 54.4 mm circumference.

17.32 mm inner Ø
Proportional only — actual on-screen size depends on your display.
US / CA
7
UK / AU
EU / ISO
54
Japan
14
CH / IT / ES
14
Ø in
0.682
50 mm reference
Actual-size print check Inner diameter: 17.32 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 7: UK · EU · Japan

Frequently asked questions

What is ring size 7 in mm?

US ring size 7 has an inner diameter of 17.32 mm and an inner circumference of 54.4 mm.

What is US 7 in UK, EU and Japan ring sizes?

US 7 converts to UK N½, EU/ISO 54, Japan 14, and Switzerland/Italy/Spain 14.

Is ring size 7 small or large?

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