Cartier ring size guide
Cartier uses European (ISO) sizing — the number is the inner circumference in millimetres. A Cartier 52 is a 52 mm circumference, i.e. a US 6.
How Cartier sizing works
Cartier’s ring chart lists EU 50 as US 5¼, 52 as US 6, 54 as US 6¾ and 56 as US 7½. Love and Trinity use these EU size labels, but other collections can recommend a different ring size for the same finger measurement.
Cartier EU / US / UK
Cartier’s ring chart lists EU 50 as US 5¼, 52 as US 6, 54 as US 6¾ and 56 as US 7½. Love and Trinity use these EU size labels, but other collections can recommend a different ring size for the same finger measurement.
| Cartier EU | US | UK |
|---|---|---|
| 50 | 5¼ | K |
| 52 | 6 | L½ |
| 54 | 6¾ | N½ |
| 56 | 7½ | P |
| 58 | 8¼ | Q½ |
Wide-band size calculator
Estimate the order size for a wider band, then confirm before buying a non-resizable ring.
This advisor uses editorial rules to suggest sizes to try. Its adjustments have not been validated by a wearer study and are not manufacturer sizing instructions. Compare the same width and inner profile with a jeweler.
Sources checked for the scope described here. Tool adjustments are editorial estimates, not measured fit outcomes or retailer quotes; specialist and native-language sign-off remain separate.
Cartier exact-size answers
- Cartier Love ring size 52 to US
- Cartier Love ring size 54 to US
- Cartier Love ring size 58 to US
- Cartier Love ring size 56 to US
- Cartier 54 to US ring size
Frequently asked questions
What is Cartier ring size 52 in US?
Cartier 52 is a US 6 (UK L½, 52 mm circumference, 16.5 mm diameter). Cartier uses EU/ISO sizing.
What is a Cartier Love ring size 54 in US?
Cartier’s ring chart lists Love size 54 as US 6¾ and UK N½. Bracelet sizes use a separate guide.
Does Cartier use US ring sizes?
Cartier labels rings with EU numbers and publishes US equivalents in its ring sizing guide. Check the specific collection before ordering.
Ringsizely is an independent ring size converter and is not affiliated with, endorsed by, or sponsored by Cartier. Brand names are used for identification only. Always confirm with the retailer before ordering a non-resizable ring.