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Cartier Ring Size Chart

Use the European-style size number on your Cartier ring as a practical comparison to the EU column below, then confirm with Cartier's current jewelry size guide.

Compare Cartier numbers with the EU column

Cartier directs shoppers to its jewelry size guide; use this EU/ISO comparison as an estimate and confirm the current product guide.

Cartier ring numbers are commonly compared with European circumference-based sizing. TheEU column in the table below is therefore a useful measurement-based starting point, rather than a replacement for Cartier's current product-specific guidance.

For example, a Cartier size 54 falls closest to our verified US size 7 row (EU 54.5), just above US 6.5 (EU 53). Always confirm your exact size with Cartier directly, since a product's design and band width can shift the ideal fit.

Cartier (EU) size conversion chart

Match the closest EU value to your Cartier number, then read across for an estimate in every other system.

Cartier (EU) ring size conversion chart
US / CanadaUS, CA, MXUK / AustraliaUK, IE, AU, NZ, ZAEUEU, FR, AT, BE, DK, SE, NO, FIGermany / NetherlandsDE, NLTurkeyTRJapanJP, CN, KR, HK, SGIndia (BlueStone)INIndia (Jewelove)India (VowJewels)India (The Vedic Crystals)Diameter (mm)Circumference (mm)
US / CanadaUS, CA, MX3UK / AustraliaUK, IE, AU, NZ, ZAFEUEU, FR, AT, BE, DK, SE, NO, FI44Germany / NetherlandsDE, NL14TurkeyTR4.2JapanJP, CN, KR, HK, SG4India (BlueStone)IN4.2India (Jewelove)4.2India (VowJewels)4India (The Vedic Crystals)5Diameter (mm)14.07Circumference (mm)44.2
US / CanadaUS, CA, MX3.5UK / AustraliaUK, IE, AU, NZ, ZAGEUEU, FR, AT, BE, DK, SE, NO, FI45.5Germany / NetherlandsDE, NL14.5TurkeyTR5.49JapanJP, CN, KR, HK, SG6India (BlueStone)IN5.49India (Jewelove)5.49India (VowJewels)5India (The Vedic Crystals)6Diameter (mm)14.48Circumference (mm)45.49
US / CanadaUS, CA, MX4UK / AustraliaUK, IE, AU, NZ, ZAHEUEU, FR, AT, BE, DK, SE, NO, FI47Germany / NetherlandsDE, NL15TurkeyTR6.75JapanJP, CN, KR, HK, SG7India (BlueStone)IN6.75India (Jewelove)6.75India (VowJewels)6India (The Vedic Crystals)7Diameter (mm)14.88Circumference (mm)46.75
US / CanadaUS, CA, MX4.5UK / AustraliaUK, IE, AU, NZ, ZAIEUEU, FR, AT, BE, DK, SE, NO, FI48Germany / NetherlandsDE, NL15.5TurkeyTR8.03JapanJP, CN, KR, HK, SG8India (BlueStone)IN8.03India (Jewelove)8.03India (VowJewels)7India (The Vedic Crystals)8Diameter (mm)15.29Circumference (mm)48.03
US / CanadaUS, CA, MX5UK / AustraliaUK, IE, AU, NZ, ZAJ½EUEU, FR, AT, BE, DK, SE, NO, FI49.5Germany / NetherlandsDE, NL15.5TurkeyTR9.32JapanJP, CN, KR, HK, SG9India (BlueStone)IN9.32India (Jewelove)9.32India (VowJewels)8India (The Vedic Crystals)9Diameter (mm)15.7Circumference (mm)49.32
US / CanadaUS, CA, MX5.5UK / AustraliaUK, IE, AU, NZ, ZAK½EUEU, FR, AT, BE, DK, SE, NO, FI50.5Germany / NetherlandsDE, NL16TurkeyTR10.58JapanJP, CN, KR, HK, SG10India (BlueStone)IN10.58India (Jewelove)10.58India (VowJewels)9India (The Vedic Crystals)10Diameter (mm)16.1Circumference (mm)50.58
US / CanadaUS, CA, MX6UK / AustraliaUK, IE, AU, NZ, ZAL½EUEU, FR, AT, BE, DK, SE, NO, FI52Germany / NetherlandsDE, NL16.5TurkeyTR11.87JapanJP, CN, KR, HK, SG11India (BlueStone)IN11.87India (Jewelove)11.87India (VowJewels)10India (The Vedic Crystals)11Diameter (mm)16.51Circumference (mm)51.87
US / CanadaUS, CA, MX6.5UK / AustraliaUK, IE, AU, NZ, ZAM½EUEU, FR, AT, BE, DK, SE, NO, FI53Germany / NetherlandsDE, NL17TurkeyTR13.16JapanJP, CN, KR, HK, SG13India (BlueStone)IN13.16India (Jewelove)13.16India (VowJewels)11India (The Vedic Crystals)12Diameter (mm)16.92Circumference (mm)53.16
US / CanadaUS, CA, MX7UK / AustraliaUK, IE, AU, NZ, ZAN½EUEU, FR, AT, BE, DK, SE, NO, FI54.5Germany / NetherlandsDE, NL17.5TurkeyTR14.41JapanJP, CN, KR, HK, SG14India (BlueStone)IN14.41India (Jewelove)14.41India (VowJewels)12India (The Vedic Crystals)13Diameter (mm)17.32Circumference (mm)54.41
US / CanadaUS, CA, MX7.5UK / AustraliaUK, IE, AU, NZ, ZAO½EUEU, FR, AT, BE, DK, SE, NO, FI55.5Germany / NetherlandsDE, NL17.5TurkeyTR15.7JapanJP, CN, KR, HK, SG15India (BlueStone)IN15.7India (Jewelove)15.7India (VowJewels)13India (The Vedic Crystals)14Diameter (mm)17.73Circumference (mm)55.7
US / CanadaUS, CA, MX8UK / AustraliaUK, IE, AU, NZ, ZAP½EUEU, FR, AT, BE, DK, SE, NO, FI57Germany / NetherlandsDE, NL18TurkeyTR16.99JapanJP, CN, KR, HK, SG16India (BlueStone)IN16.99India (Jewelove)16.99India (VowJewels)14India (The Vedic Crystals)15Diameter (mm)18.14Circumference (mm)56.99
US / CanadaUS, CA, MX8.5UK / AustraliaUK, IE, AU, NZ, ZAQ¼EUEU, FR, AT, BE, DK, SE, NO, FI58.5Germany / NetherlandsDE, NL18.5TurkeyTR18.25JapanJP, CN, KR, HK, SG17India (BlueStone)IN18.25India (Jewelove)18.25India (VowJewels)15India (The Vedic Crystals)16Diameter (mm)18.54Circumference (mm)58.25
US / CanadaUS, CA, MX9UK / AustraliaUK, IE, AU, NZ, ZAR½EUEU, FR, AT, BE, DK, SE, NO, FI59.5Germany / NetherlandsDE, NL19TurkeyTR19.53JapanJP, CN, KR, HK, SG18India (BlueStone)IN19.53India (Jewelove)19.53India (VowJewels)16India (The Vedic Crystals)17Diameter (mm)18.95Circumference (mm)59.53
US / CanadaUS, CA, MX9.5UK / AustraliaUK, IE, AU, NZ, ZAS½EUEU, FR, AT, BE, DK, SE, NO, FI61Germany / NetherlandsDE, NL19.5TurkeyTR20.79JapanJP, CN, KR, HK, SG19India (BlueStone)IN20.79India (Jewelove)20.79India (VowJewels)17India (The Vedic Crystals)18Diameter (mm)19.35Circumference (mm)60.79
US / CanadaUS, CA, MX10UK / AustraliaUK, IE, AU, NZ, ZAT½EUEU, FR, AT, BE, DK, SE, NO, FI62Germany / NetherlandsDE, NL20TurkeyTR22.08JapanJP, CN, KR, HK, SG20India (BlueStone)IN22.08India (Jewelove)22.08India (VowJewels)18India (The Vedic Crystals)19Diameter (mm)19.76Circumference (mm)62.08
US / CanadaUS, CA, MX10.5UK / AustraliaUK, IE, AU, NZ, ZAU½EUEU, FR, AT, BE, DK, SE, NO, FI63.5Germany / NetherlandsDE, NL20TurkeyTR23.37JapanJP, CN, KR, HK, SG22India (BlueStone)IN23.37India (Jewelove)23.37India (VowJewels)19India (The Vedic Crystals)20Diameter (mm)20.17Circumference (mm)63.37
US / CanadaUS, CA, MX11UK / AustraliaUK, IE, AU, NZ, ZAV½EUEU, FR, AT, BE, DK, SE, NO, FI64.5Germany / NetherlandsDE, NL20.5TurkeyTR24.62JapanJP, CN, KR, HK, SG23India (BlueStone)IN24.62India (Jewelove)24.62India (VowJewels)20India (The Vedic Crystals)21Diameter (mm)20.57Circumference (mm)64.62
US / CanadaUS, CA, MX11.5UK / AustraliaUK, IE, AU, NZ, ZAW½EUEU, FR, AT, BE, DK, SE, NO, FI66Germany / NetherlandsDE, NL21TurkeyTR25.91JapanJP, CN, KR, HK, SG24India (BlueStone)IN25.91India (Jewelove)25.91India (VowJewels)21India (The Vedic Crystals)22Diameter (mm)20.98Circumference (mm)65.91
US / CanadaUS, CA, MX12UK / AustraliaUK, IE, AU, NZ, ZAX½EUEU, FR, AT, BE, DK, SE, NO, FI67Germany / NetherlandsDE, NL21.5TurkeyTR27.2JapanJP, CN, KR, HK, SG25India (BlueStone)IN27.2India (Jewelove)27.2India (VowJewels)22India (The Vedic Crystals)23Diameter (mm)21.39Circumference (mm)67.2
US / CanadaUS, CA, MX12.5UK / AustraliaUK, IE, AU, NZ, ZAY½EUEU, FR, AT, BE, DK, SE, NO, FI68.5Germany / NetherlandsDE, NL22TurkeyTR28.46JapanJP, CN, KR, HK, SG26India (BlueStone)IN28.46India (Jewelove)28.46India (VowJewels)23India (The Vedic Crystals)24Diameter (mm)21.79Circumference (mm)68.46
US / CanadaUS, CA, MX13UK / AustraliaUK, IE, AU, NZ, ZAZ½EUEU, FR, AT, BE, DK, SE, NO, FI69.5Germany / NetherlandsDE, NL22TurkeyTR29.74JapanJP, CN, KR, HK, SG27India (BlueStone)IN29.74India (Jewelove)29.74India (VowJewels)24India (The Vedic Crystals)25Diameter (mm)22.2Circumference (mm)69.74

Lower-confidence data — Japan, India (VowJewels), India (The Vedic Crystals) comes from a single published retailer source, or is known to drift by 1–2 sizes at the top of the range. Confirm with the retailer before ordering.

Rounded scale — Germany / Netherlands uses a coarser step than US half-sizes, so one value can cover two neighbouring US sizes. Check the millimeter columns when you need to tell them apart.

Don't know your Cartier size yet?

Measure your finger's circumference in millimeters, or enter a measurement from an existing ring, using our ring size calculator — it will show the closest EU comparison alongside every other system.

Frequently asked questions

What size is a Cartier size 54 ring in US size?

A Cartier size 54 falls between our US 6.5 (EU 53) and US 7 (EU 54.5) rows, so US size 7 is the closest measurement-based comparison. Confirm with Cartier's current jewelry size guide before ordering, since the product design and fit can vary.

Can I use the EU column for a Cartier size?

Use it as a practical comparison, not as a replacement for Cartier's current product-specific guide. Cartier directs shoppers to jewelry size guides, but the numeric table was not extractable during our latest audit. Our EU column remains a verified circumference-based measurement reference.

How do I find my Cartier ring size?

Measure your finger's circumference in millimeters (or use our ring size calculator), then compare it with the EU column in the chart below. Use Cartier's current jewelry size guide to make the final purchase decision.