Claddagh Ring Size Chart: Sizes in MM, Inches, US, UK & EU

A Claddagh ring size chart converts your finger measurement into a ring size. Claddagh rings use the same US, UK and EU sizes as other rings, but the raised heart, hands and crown on top can make them feel snugger than a plain band of the same size. Use the chart below to find your size, then read the fit tips for men’s and women’s Claddagh rings and which way to wear one.

How Claddagh Rings Are Sized

A Claddagh ring is a traditional Irish ring named after the Claddagh, a fishing village in Galway. Its design shows two hands holding a heart, usually topped with a crown, which are commonly said to stand for friendship, love and loyalty. Like any other ring, it is sized by the inside diameter or circumference of the band. The ISO 8653 standard defines ring size by inside circumference in millimetres; see the ring size overview for background.

What makes Claddagh rings different is the head. The raised heart, hands and crown sit on top of the band and can be larger or heavier than the shank, so a ring that matches your measurement on paper can still feel snug where the head sits over the finger. Ireland uses the same letter-based sizes as the UK, so the UK column in the chart applies.

Claddagh Ring Size Conversion Chart (MM, Inches, US, UK, EU)

Inner diameter is the width across the inside of the band. Inner circumference is the distance around it. Highlighted rows are common reference points.

Formulas used: circumference = π × diameter; inches = mm ÷ 25.4; EU size = inner circumference in mm, rounded. UK letters are matched to the nearest published inner diameter. Sizes vary slightly by brand.

Which Way to Wear a Claddagh Ring

By tradition, the way a Claddagh ring faces is said to show relationship status. On the right hand, the heart pointing toward the fingertip is often taken to mean single, while the heart pointing toward the wrist is often taken to mean in a relationship. On the left hand, the heart pointing toward the wrist is traditionally linked to engagement or marriage. These are customs rather than rules, and the ring fits the same either way. For fit, if you are between sizes or the head is large, many people choose a quarter to a half size larger, but check the seller’s size notes and return policy, because heads and bands differ from maker to maker.

Women’s Claddagh Ring Sizes

Women’s Claddagh rings are most often worn on the ring finger, commonly between about US 5 and US 9, though many people fall outside that range. See also the women’s ring size chart.

Men’s Claddagh Ring Sizes

Claddagh rings are also worn by men and are commonly bought in sizes from about US 8 to US 13. A large head or wide band can feel tighter, so consider a quarter to a half size more if you are between sizes. See also the men’s ring size chart.

How to Measure Claddagh Ring Size in MM and Inches

Millimetres are the most accurate unit. Convert to inches by dividing by 25.4. Our how to measure your ring size guide and the ring size calculator cover more methods.

Measure an Existing Ring

1. Choose a ring that fits the same finger comfortably.
2. Lay it flat and measure the inside width at its widest point, in mm.
3. Find the nearest value in the “Inner diameter (mm)” column.
4. Multiply the diameter by 3.1416 to check the circumference.

Measure Finger Circumference with a Paper Strip

1. Cut a strip of paper about 10 mm wide and 150 mm long.
2. Wrap it around the base of the finger you will wear the ring on and mark where it overlaps.
3. Lay the strip flat and measure from the end to the mark in mm.
4. Match the result to the “Inner circumference (mm)” column. Use string or a tape measure the same way.

How to Choose the Right Claddagh Ring Size

• Pick the finger first. Measure the finger you will actually wear the ring on.
• Use millimetres. Compare your circumference with the chart and the seller’s size notes.
• Check the head and band width. A large head or wide band can feel tighter; go up a quarter to a half size if between sizes.
• Check the knuckle. The ring must pass over it and still sit snugly.
• Test the fit. It should not slip off when your hand is relaxed, and the head should not twist round the finger.

Can Claddagh Rings Be Resized?

Often yes, but it depends on the metal and the design, so ask a jeweller before you buy or alter one. A simple Claddagh band can usually be resized by a size or two, but the decorative head can limit how much, and stones, engraving or a very thin shank can make the job harder. Resizing a ring with a large head can also change how it sits on the finger. Related guides: US ring size chart, UK ring size chart and ring size conversion chart.

Claddagh Ring Size FAQs

Related Ring Size Guides

• Ring size calculator
• How to measure your ring size
• Printable ring size chart
• Female ring size chart
• Men’s ring size chart
• US ring size chart
• UK ring size chart
• Ring size conversion chart