Ring Size Chart

by Rena Klingenberg.

Copper ringThe ring size chart below shows standard sizes for the U.S., plus the approximate diameter and circumference for each.

To make the chart more useful for you, here are the most common ring sizes for men and women, and tips for measuring your fingers for the best fit.

Most Common Ring Sizes

Women’s most common ring sizes: 5 through 8.

Women’s average ring size: 7.

Men’s most common ring sizes: 8 through 12.

Men’s average ring size: 10.

However, if you’re selling jewelry it’s a good idea to carry a wider selection of sizes. There are many folks with very large or very small fingers who really appreciate finding a jeweler with ring sizes outside of the average range.

Selling adjustable rings is also a good solution for fitting more customers.

How to Find Your Ring Size

It’s best to measure for a ring size when your fingers are at their largest, which is usually at the end of the day.

Measuring Your Finger
with a Ring Sizer Set:

The easiest method is to use a ring sizer set (available at most jewelry suppliers). It’s a collection of plastic or metal rings, usually ranging from U.S. size 4 to 13, in half-size increments.

Simply try on the rings till you find the one with the most comfortable fit that slides on and off easily.

Measuring Your Finger
with a Tape Measure:

You can also use a flexible metric tape measure instead of the ring sizer set.

Wrap the tape measure around the base of your finger, and make sure you can slide it on and off easily over your knuckle.

Write down the measurement in millimeters.

Then, using the “circumference” column of the ring size chart above, locate the mm measurement you found on the tape measure and follow it across to see your ring size.

When making jewelry, a ring sizing mandrel helps you create rings with a perfect fit.

Ring Size Chart

Ring Size Circumference
(mm)
Inside Diameter
(mm)
0 36.5 11.6
1 39.1 12.5
2 41.7 13.3
3 44.0 14.0
4 46.5 14.8
5 49.0 15.6
6 51.7 16.5
7 54.3 17.3
8 57.2 18.2
9 59.7 19.0
10 62.2 19.8
11 64.7 20.6
12 67.2 21.4
13 69.7 22.2
14 72.3 23.0
15 74.8 23.8
16 77.4 24.6
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Comments

  1. I’ve been looking for a chart like this to cut out a few steps in figuring exact measurements for clients online. However, I have really tiny fingers (my ring finger is a 3), and I have met women with fingers even smaller than mine! So, I added a few more sizes, smaller than 4 & bigger than 15, and tried figuring it out myself, using your chart as jumping off point. I didn’t think it had been that long ago I was learning equations such as these, but maybe my memory is failing, because I can’t figure it out for the life of me!! I even tried measuring my mandrel with a fabric measuring tape but my calculations are completely different than yours! Would you mind terribly sharing the method you used for your computations? I’m really at a loss.

  2. Hi Serafina – thanks for asking! I’ve updated the ring size chart to go from U.S. size 0 to size 16. :)

  3. I ware a womens ring size 11. What size in a mens ring compares to a womens size 11 ring size. Thank you so much for your information.

    Loretta

  4. Hi Loretta! In the U.S., ring sizes are the same for men and women. So a size 11 ring would fit both a size 11 woman and a size 11 man.

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