Ring size 3 in millimetres

US ring size 3 is 14.07 mm inner diameter and 44.2 mm circumference.

Proportional only — actual on-screen size depends on your display.

50 mm reference

Actual-size print check Inner diameter: 14.07 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 3: UK · EU · Japan

Frequently asked questions

What is ring size 3 in mm?

US ring size 3 has an inner diameter of 14.07 mm and an inner circumference of 44.2 mm.

What is US 3 in UK, EU and Japan ring sizes?

US 3 converts to UK F½, EU/ISO 44, Japan 4, and Switzerland/Italy/Spain 4.

Is ring size 3 small or large?

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