Ring size 5 in millimetres
US ring size 5 is 15.70 mm inner diameter and 49.3 mm circumference.
- US / CA
- 5
- UK / AU
- J½
- EU / ISO
- 49
- Japan
- 9
- CH / IT / ES
- 9
- Ø in
- 0.618
50 mm reference
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).