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How to Find Out Your Ring Size. Basic Finger Shapes.

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Whether you are looking for a ring for yourself or to give as a gift, it is important to find a size that will fit you correctly. The perfect size is when the ring feels comfortably on the finger, but it is a little hard to get off. This allows pleasant wearing without the risk of losing the ring. While you don't want the ring sliding off your finger, you also don't want to it applying too much pressure. What you are looking for is a nice, snug fit. To get a snug fit, the ring should just fit over the largest part of your finger - that is typically your knuckle. And, you should also know that your ring size generally increases with hot outdoor temperatures, with high humidity levels and with a diet high in salt. So, keep these facts in mind as you determine the right ring size.

Use this form for conversion of your local standard to the US ring sizes. You can also determine your size by knowing your finger circumference or diameter of the ring. This option is also listed in the chart.

Convert your ring size to the ring size used in other countries.

USA size Diam. inch. Diam. mm Circum. mm
British French German Japanese Swiss

Select a ring size in one category, the rest will change to match.

How to determine your ring size

  1. Print out the sizer below, use a printable version. Cut it out making a slot where indicated.
  2. Wrap a strip of paper around your finger with the numbers facing outward.
  3. Insert the end of the tab into the slot.
  4. Pull the tab until the paper is snug.
  5. Your ring size is the measurement on the sizer.

Printable version

Please accomplish the above procedure very accurately, as small discrepancies in circumference will cause a considerable change in determining your ring size.

The Three Basic Finger Shapes

If you want to be a good expert in choosing the right ring finger size, then you should know about the peculiarities of finger shapes. In fact, there are three basic finger shapes. Expressed rather indelicately, these could be called fat, medium and thin; perhaps we should call them well-built, typical, and slim.

If you are the owner of medium fingers then your knuckle joint is slightly larger than the fleshy part above it where the ring is worn. In this case, the ring should be a close fit over the knuckle, but feel comfortable to wear once it is in place. With a little luck, the ring will not tend to slip around the finger, even in the case of large or heavy rings. So, if your finger shape is medium, you are fortunate!

The owners of well-built fingers will find that the fleshy part of their finger is larger than the knuckle joint. Perhaps we should call these people "small-boned". In this case, obviously the ring will slide over the knuckle easily, but there is a slight danger that the ring could slip off. To avoid this, it is better if the ring fits slightly more tightly on the flesh than for people with "medium" fingers. But donít worry, it may be worth a short period of slight discomfort with a new ring to ensure a snug fit ever after, as the flesh under the ring will usually adjust slightly to the ring.

Ring Guards

People who often have the greatest problem with getting a perfect ring fit, are those with slim fingers, where once the ring is squeezed over the knuckle, it is too slack on the finger, and spins around. For this problem, jewelers have elaborated a special "trick". They adjust the ring size so that it is a few sizes too large, then they add two "bars" across the inside back of the shank. If the top of the ring is considered as 12 o'clock, then the bars are added at about 4 and 8 o'clock. This hardly ever fails to work, although it has to be done by trial and error, as there is no simple scientific way to gauge the "correct" finger size. On average, they expect to take two attempts to get this right.

Total entries 15  [1-10][11-15] [Forward] [Last]
Daniel Richardson, 2011-11-24 05:36:37
I would like to know what is my thumb finger Ring size when my Circum. measured 83mm.

adnan, 2011-09-05 20:53:34
i want to purchase silver brecelet
RICK, 2011-07-31 07:11:30
Hi my finger size is 8.2cm in circumference what size ring would i need if were to order a custom military style ring please. as your numbers start at 4 and go up what size number should i order for my finger size
tedi, 2011-07-01 01:11:08
hey if you buy a ring from super drug what is a size medium do you know what letter you would be because i need to buy a ring for my friends birthday and she dont know what size she is either
Alison Camilleri, 2011-03-25 05:36:37
My ring size circumfrence is 6cm, do you know what ring size fits me pls.
Jacob, 2011-01-23 19:30:05
I`m only 12 years old and i have bought myself a 2005 pittsburgh super bowl ring white gold 10k
caroline, 2011-01-17 16:56:05
hi im from uk, i love th elvis ring however dont know my ring size in us i measured with fine string and is 7cm can u help please xx
sonu, 2010-10-02 19:29:17
i have ring size "T" i wonder how much this size we can say in mm

which is my size from these if i have size "T"

size: 18.5mm/19mm/19.5mm/20mm/20.5mm internal dia
Jemma, 2009-07-02 02:28:41
Hi, I don't have a printer and I was wondering if you would be able to help me out please?
My ring size circumfrence is 6cm, do you know what size that would be in aus sizes?
Thanks : )
jonty, 2009-06-30 10:31:04
my fingers are big my size in the uk is z+5 what is us size
Total entries 15  [1-10][11-15] [Forward] [Last]