The average ring size for women in the United States is 6 to 7, and the average for men is 9 to 10. Size 6 is the most commonly sold women's size and size 9 is the most common for men. Your own size can be very different, so if you are buying a ring as a gift or a surprise, use the tips below to get it right.
Average Ring Sizes at a Glance
- Women (US): 6 to 7 on average. Most women fall between 5 and 8.
- Men (US): 9 to 10 on average. Most men fall between 8 and 12.
- Ring finger vs other fingers: the middle finger is usually about half a size larger than the ring finger, and the index finger about the same as the ring finger.
- Dominant hand: fingers on your dominant hand are often slightly larger.
US, UK and Irish Ring Sizes
Ireland and the UK use letters instead of numbers, which matters when you buy a ring made in Ireland. These are approximate equivalents:
- US 5 = UK/Ireland J½ (inside diameter about 15.7mm)
- US 6 = UK/Ireland L½ (about 16.5mm)
- US 7 = UK/Ireland N½ (about 17.3mm)
- US 8 = UK/Ireland P½ (about 18.1mm)
- US 9 = UK/Ireland R½ (about 18.9mm)
- US 10 = UK/Ireland T½ (about 19.8mm)
- US 11 = UK/Ireland V½ (about 20.6mm)
- US 12 = UK/Ireland X½ (about 21.4mm)
For the full chart, see our ring size conversion chart.
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How to Find Your Ring Size at Home
The most accurate way is to print our free ring sizer and follow the steps. You can also measure the inside diameter of a ring that fits well and compare it with the chart above. Measure at the end of the day, when your fingers are largest, and not when your hands are cold.
Tips for Getting the Size Right
- Wide bands fit tighter. For bands 6mm or wider, consider going up half a size.
- Knuckles matter. If your knuckle is large, choose a size that slides over it, even if the ring sits a little loose at the base.
- Buying a surprise? Borrow a ring she wears on the same finger, or ask a close friend or family member.
- Between sizes? Choose the larger size. A slightly loose ring is more comfortable than a tight one.
Ring Sizes for Men's Celtic Rings
Men's rings are often wider, so the wide-band rule matters more. A 6mm or 8mm Celtic wedding band usually needs half a size up from a man's measured size.
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Classic sterling silver and gold Claddagh rings in women's and men's sizes, with a free ring sizer.
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Shopping for him? Browse men's Celtic rings and Celtic knot wedding rings.
Frequently Asked Questions
What is the average ring size for women?
The average ring size for women in the United States is 6 to 7, and size 6 is the most commonly sold. Most women wear between size 5 and size 8. Your own size may differ, so measure with a ring sizer or a ring that already fits before you buy.
What is the average ring size for men?
The average ring size for men in the United States is 9 to 10, with size 9 the most common. Most men wear between size 8 and size 12. Because men's rings are often wider, consider going up half a size for bands 6mm or wider.
What is a size 7 ring in UK and Irish sizes?
A US size 7 ring is about a UK and Irish size N½, with an inside diameter of about 17.3mm. Ireland and the UK use letters instead of numbers, so check the conversion whenever you buy a ring made in Ireland.
How can I find my ring size at home?
Print a ring sizer, wrap it around the base of your finger and read the size, or measure the inside diameter of a ring that fits well and compare it with a size chart. Measure at the end of the day, when fingers are largest, and avoid measuring cold hands.
Should I size up for a wide ring?
Yes. Wide bands, around 6mm or more, cover more of the finger and feel tighter than thin bands of the same size. Most people should go up half a size for a wide band. If you are between sizes, choose the larger one for comfort.
About the Author
Jennifer Derrig founded The Irish Jewelry Company in 2006. A graduate of the Fashion Institute of Technology (FIT), she designs Celtic and Irish jewelry that carries the stories, symbols and language of Ireland. Follow Jennifer on Facebook, Instagram and Pinterest.
