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RING SIZE GUIDE

The right ring size is essential to making your moment special. It needs to be tight enough not to fall off, but loose enough to be comfortable and slide over your knuckle. The time of day and weather also affect measurement. Because of cooler weather in the morning, your fingers are actually slimmer at the start of the day, and expand a little as it warms up. The evening is the best time to measure your finger size. If you're vacillating between two sizes, always choose the larger one. If your knuckle is larger than the base of your finger, measure both your knuckle and the base of your finger and select a size between the two. It is always good to measure your finger multiple times during the day. If you wish to surprise someone with a ring, try to ask their friend or family member about the size or quietly borrow his/her ring to bring to a jewler for sizing. Please also remember that the right and left hands are different - the ring size may not be the same on both.

Common Ring Sizes

We understand that it can be difficult to select the right ring size online, especially if you are giving the ring as a surprise gift. You may have to guess on the size.

If you are planning a surprise and are not sure about the size, order an estimated ring size and simply send it back to us for resizing within the first 60 days after receipt.

The average ring size varies between L1/2-N for women and S-T1/2 for men.

Free Ring Sizer App


Gone are the days of guessing your ring size or waiting for a ring sizer in the mail. Our Ring Sizer App brings the jeweler's expertise right to your fingertips, combining ease of use with impeccable accuracy. By harnessing the power of your smartphone's camera and advanced image analysis technology, our app delivers a swift and precise ring-sizing experience.

Shop with Confidence:
With our Ring Sizer App, your next ring purchase will be a perfect match for your style and your finger. Use the app, measure your ring size, and step into the world of bespoke jewelry today.

Ready to find your perfect fit?
Click the button below to use the Ring Sizer App and ensure your next ring is just right. Available for iOS and Android devices.

Free Ring Sizer from GLAMIRA

Common Ring Sizes

A ring sizer is a tool made to determine your ring size. We always encourage our customers to take advantage of this opportunity we offer. The sizer itself and its shipping to your door are free of charge.

Printable Ring Sizer

Printable Ring Sizer

If the occasion is just around the corner, you can also download a free ring sizer in pdf format that comes with instructions. Download the free ring sizer PDF here.

If you are still not sure what size would be the best for you, you are more than welcome to contact our experts to discuss the matter further. Contact Us 

Tips for Measuring Ring Size

  • Temperature can cause innacurate readings of your ring size. Your fingers will be at least half a size smaller when your hand is too cold or half a size bigger when too hot. Measure your finger in average temperatures, preferably at the end of the day when your fingers are at their largest.
  • The larger the band, the tighter your ring will feel. If you wish to order a band that's 6 mm wide or more, choose a size larger than you ordinarily would. Also, large stones can cause minor distortion. Order one size up if the stone appears to distort your ring.
  • If your knuckle is larger than the base of your finger, measure both your knuckle and the base of your finger and select the size in between two.
  • Your ring should snug enough not to fall off and loose enough to slide over your knuckle. If you vacillate between two sizes, always go with the larger one.
  • Repeat your measurement 3 to 4 times to rule out mistaken results.

Important Notes

  • Please avoid getting your item resized by a third party such as another jeweler or someone other than GLAMIRA as it will void your lifetime warranty.
  • Please note that the resizing process may take up to 25 business days depending on the product and the resized ring will not be eligible for a refund.

Ring Size Chart

Below you can find the standard ring sizes along with the corresponding diameters and circumferences.

Diameter (mm) Circumference (mm) US
12.7 39.9 1
13 40.8 1 1/2
13.3 41.8 2
13.6 42.7 2 1/2
14.1 44.3 3
14.5 45.6 3 1/2
15 47.1 4
15.3 48.1 4 1/2
15.6 49.0 5
16.1 50.6 5 1/2
16.5 51.8 6
16.9 53.1 6 1/2
17.2 54.0 7
17.7 55.6 7 1/2
18.1 56.9 8
18.5 58.1 8 1/2
18.9 59.4 9
19.5 61.3 9 1/2
19.8 62.2 10
20 62.8 10 1/2
20.6 64.7 11
21 66.0 11 1/2
21.3 66.9 12
21.8 68.5 12 1/2
22.3 70.1 13
22.7 71.3 13 1/2
23.2 72.9 14
23.5 73.8 14 1/2
23.8 74.8 15
24.2 76.0 15 1/2