Ring size 4 in millimetres

US ring size 4 is 14.88 mm inner diameter and 46.8 mm circumference.

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

50 mm reference

Actual-size print check Inner diameter: 14.88 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 4: UK · EU · Japan

Frequently asked questions

What is ring size 4 in mm?

US ring size 4 has an inner diameter of 14.88 mm and an inner circumference of 46.8 mm.

What is US 4 in UK, EU and Japan ring sizes?

US 4 converts to UK H½, EU/ISO 47, Japan 7, and Switzerland/Italy/Spain 7.

Is ring size 4 small or large?

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