Ring size 5 in millimetres

US ring size 5 is 15.70 mm inner diameter and 49.3 mm circumference.

15.70 mm inner Ø
Proportional only — actual on-screen size depends on your display.
US / CA
5
UK / AU
EU / ISO
49
Japan
9
CH / IT / ES
9
Ø in
0.618
50 mm reference
Actual-size print check Inner diameter: 15.70 mm. Print at 100% and verify the 50 mm reference bar before comparing a ring.

This is a smaller-than-average size (the average women’s size is about US 6–6½). See the full international ring size chart · Converter

Convert size 5: UK · EU · Japan

Frequently asked questions

What is ring size 5 in mm?

US ring size 5 has an inner diameter of 15.70 mm and an inner circumference of 49.3 mm.

What is US 5 in UK, EU and Japan ring sizes?

US 5 converts to UK J½, EU/ISO 49, Japan 9, and Switzerland/Italy/Spain 9.

Is ring size 5 small or large?

This is a smaller-than-average size (the average women’s size is about US 6–6½).