Custom Ring Size Chart | How to Size Your Finger (2024)

Custom Ring Size Chart | How to Size Your Finger (1)

You can estimate size by measuring the circumference of your finger, using the chart below. As this is not perfectly accurate, ideally ask for a free ring sizer kit.

US Size Cir.in inch Cir. in MM British French German Japanese Swiss
0000 1.23 31.1 - - - - -
00 1.33 33.7 - - - - -
0 1.43 36.3 - - - - -
1/2 1.48 37.6 A - - - -
3/4 1.51 38.3 A 1/2 - - - -
1 1.54 39.0 B - - 1 -
1 1/4 1.56 39.6 B 1/2 - - - -
1 1/2 1.58 40.2 C - - - -
1 3/4 1.61 40.8 C 1/2 - - - -
2 1.64 41.5 D 41 1/2 13 1/2 2 1 1/2
2 1/4 1.66 42.1 D 1/2 - - - -
2 1/2 1.68 42.7 E 42 3/4 13 3/4 3 2 3/4
2 3/4 1.71 43.4 E 1/2 - - - -
3 1.73 44.0 F 44 14 4 4
3 1/8 1.75 44.3 F 1/2 - - - -
3 1/4 1.76 44.6 - - - - -
3 3/8 1.77 44.9 G 45 1/4 - 5 5 1/4
3 1/2 1.78 45.2 - - 14 1/2 - -
3 5/8 1.79 45.5 G 1/2 - - 6 -
3 3/4 1.81 45.9 H 46 1/2 - - 6 1/2
4 1.83 46.5 H 1/2 - 15 7 -
4 1/4 1.86 47.1 I 47 3/4 - - 7 3/4
4 1/2 1.88 47.8 I 1/2 - 15 1/4 8 -
4 5/8 1.90 48.1 J 49 15 1/2 - 9
4 3/4 1.91 48.4 - - - - -
5 1.93 49.0 J 1/2 - 15 3/4 9 -
5 1/8 1.94 49.3 K 50 - - 10
5 1/4 1.95 49.6 - - - - -
5 3/8 1.97 50.0 K 1/2 - - 10 -
5 1/2 1.98 50.3 L 51 3/4 16 - 11 3/4
5 3/4 2.01 50.9 - - - - -
5 7/8 2.02 51.2 L 1/2 - - - -
6 2.03 51.5 M 52 3/4 16 1/2 12 12 3/4
6 1/4 2.06 52.2 M 1/2 - - - -
6 1/2 2.08 52.8 N 54 17 13 14
6 3/4 2.10 53.4 N 1/2 - - - -
7 2.13 54.0 O 55 1/4 17 1/4 14 15 1/4
7 1/4 2.16 54.7 O 1/2 - - - -
7 1/2 2.18 55.3 P 56 1/2 17 3/4 15 16 1/2
7 3/4 2.20 55.9 P 1/2 - - - -
8 2.23 56.6 Q 57 3/4 18 16 17 3/4
8 1/4 2.25 57.2 Q 1/2 - - - -
8 1/2 2.28 57.8 - - 18 1/2 17 -
8 5/8 2.29 58.1 R 59 - - 19
8 3/4 2.30 58.4 - - - - -
8 7/8 2.31 58.7 R 1/2 - - - -
9 2.33 59.1 - - 19 18 -
9 1/8 2.34 59.4 S 60 1/4 - - 20 1/4
9 1/4 2.35 59.7 - - - - -
9 3/8 2.36 60.0 S 1/2 - - - -
9 1/2 2.38 60.3 - - 19 1/2 19 -
9 5/8 2.39 60.6 T 61 1/2 - - 21 1/2
9 3/4 2.40 60.9 - - - - -
10 2.43 61.6 T 1/2 - 20 20 -
10 1/4 2.45 62.2 U 62 3/4 - 21 22 3/4
10 1/2 2.47 62.8 U 1/2 - 20 1/4 22 -
10 5/8 2.49 63.1 V 63 - - 23 3/4
10 3/4 2.50 63.5 - - - - -
11 2.53 64.1 V 1/2 - 20 3/4 23 -
11 1/8 2.54 64.4 W 65 - - 25
11 1/4 2.55 64.7 - - - - -
11 3/8 2.56 65.0 W 1/2 - - - -
11 1/2 2.57 65.3 - - 21 24 -
11 5/8 2.58 65.6 X 66 1/4 - - 26 1/4
11 3/4 2.60 66.0 - - - - -
11 7/8 2.61 66.3 X 1/2 - - - -
12 2.62 66.6 Y 67 1/2 21 1/4 25 27 1/2
12 1/4 2.65 67.2 Y 1/2 - - - -
12 1/2 2.68 67.9 Z 68 3/4 21 3/4 26 28 3/4
12 3/4 2.70 68.5 Z 1/2 - - - -
13 2.72 69.1 - - 22 27 -
13 1/4 2.78 70.7 - - - - -
13 1/2 2.81 71.3 - - - - -
13 3/4 2.83 72.0 - - - - -
14 2.85 72.4 - - - - -
14 1/4 2.87 72.9 - - - - -
14 1/2 2.90 73.7 - - - - -
14 3/4 2.92 74.2 - - - - -
15 2.95 74.9 - - - - -
15 1/4 2.97 75.4 - - - - -
15 1/2 3.00 76.2 - - - - -
15 3/4 3.02 76.7 - - - - -
16 3.05 77.5 - - - - -
16 1/2 3.09 78.6 - - - - -
17 3.14 79.9 - - - - -
17 1/2 3.19 81.2 - - - - -
18 3.24 82.5 - - - - -
18 1/2 3.29 83.7 - - - - -
19 3.34 85 - - - - -
19 1/2 3.39 86.3 - - - - -
20 3.44 87.6 - - - - -

* Your ring size is out of range for our chart.

Request a Free Ring Sizer

We are happy to help you figure out the right ring size, or send you a free ring sizing kit anywhere in the US or Canada.

You need to know the size of the ring early in the design process. We have several ways to help you determine the size of the ring you want.

If you have a ring that fits, you can download this chart. You will need to print it out and place it on a flat surface.

It is very important that you measure your finger several times on different days, and at different times of day... and note, very few people ask us for a size that is too small.

Helpful Hints

  • Wider rings will feel much tighter than narrow rings, and top heavy solitaires need to be fairly tight to avoid excessive spinning.
  • For surprise designs, be sure you are measuring a similar width ring that fits on the same finger.
  • Make sure the finger is at normal temperature, fingers shrink when cold
  • Measure more than once as finger size can also vary with diet, exercise, etc. from 1/4 to 1/2 size
  • If your knuckle is larger, ask your designer about a Euro shank. (There are two versions; softly squared to fit over the knuckle, and round with weighted lower corners.)
  • For a very large knuckle, an adjustable fit shank can be added to many designs as well as to many existing rings.

Schedule a free sizing consultation.

Make an Appointment

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Custom Ring Size Chart | How to Size Your Finger (2024)

FAQs

How big is a size 7 ring? ›

17.3 mm

How do you know what size ring fits your finger? ›

Take some string or a piece of paper no wider than 1.4 cm. Wrap it around your finger and mark with a pen where one end of the string or paper meets the other. Then line the string or paper against a ruler and read off the measurement. Using the chart below, you can match your finger measurement to a ring size.

What size ring is 3 inches around? ›

For example, let us convert 3 inches to ring size. Using the inches to ring size chart, we can switch from a circumference of 3 inches to a ring size of 15 1/2.

How to best guess your ring size? ›

Ordering a plastic or metal ring sizer is a relatively affordable and simple way to guess ring size. Just measure your partner's finger with the rings on the tool, and the ring that fits best will roughly correspond to the size of ring you should buy.

Can I measure ring size with my phone? ›

Download The Ring Sizing App™ Here.

For Android and older IOS users, it's just as easy. Simply place your ring finger on your phone screen, adjust the sizing lines to outline your finger and you'll have your ring size in minutes!

Is a size 8 ring big for a woman? ›

Average Woman's Ring Size

You can see that approximately half of women's ring sizes were between 6 and 8 with 7 being the most popular size. Whole sizes are more popular than half sizes and rings range from a tiny size 3 up to size 11.5.

Is your ring finger the same size as your shoe size? ›

There is a popular myth that suggests one's ring size is the same as their shoe size. However, this belief is not accurate and can lead to misconceptions about ring sizes. Ring size and shoe size are measured in different units and do not have a direct correlation.

How to find out your ring size without measuring tape? ›

Use a floss or string

Wrap the floss, string, or paper around the base of your ring finger. Use a pen to mark the point where the material first overlaps. Straighten out the string or paper and measure the length in millimeters using a ruler. This is the circumference of your finger.

How do I check my own ring size? ›

Instructions
  1. Cut a thin strip of paper.
  2. Wrap the paper around your finger. Make sure the paper is below the joint of your finger and close to your knuckle.
  3. Mark the spot where the paper meets and measure the distance with your ruler.
  4. Use the following chart to determine your ring size. Rings also come in half sizes.

How to size a ring at home? ›

Measure Your Ring Size With These Steps:
  1. Wrap string or paper around the base of your finger.
  2. Mark the point where the ends meet with a pen.
  3. Measure the string or paper with a ruler (mm) then divide by 3.14 (or Pi) to get the diameter of the ring.

How big is a size 4 ring? ›

Ring Size Guide

Standard ring sizes go up by 0.4 millimeters every half-size. For instance, a size 3 ring is 14 mm, a size 3.5 ring is 14.4 mm, and a size 4 is 14.8mm. Women's rings are commonly between sizes 3 (14 mm) and 9 (19 mm), while men's rings are usually sized between 8 (18.2 mm) and 14 (23 mm).

How tight should a ring be? ›

Ultimately, there is no definitive answer to this question, as it depends on personal preferences and the ring type. However, a good rule of thumb is that a ring should be tight enough that it doesn't easily fall off but loose enough that you can still comfortably move your finger.

What is the most accurate way to size a ring? ›

In normal circ*mstances, the most reliable way to get an accurate ring size measurement is to visit a local jeweller and get measured or take your partner to get measured. The jeweller will be able to establish the ring size needed, using a set of finger gauges to measure the most secure and comfortable fit.

How is the ring size calculator? ›

Ring size calculation

Wrap your finger in a piece of string, paper, or tape. Mark the point of meeting of the two ends. Measure the string, paper, or tape to get your finger circumference. Divide it by a calculator number such as 3.15 to get your finger diameter.

How to predict ring size? ›

Grab a small string of some kind and lightly wrap it around the base of her finger. When you pull it away, mark the length of the string with a piece of tape or marker. Take it the jeweler when you go to pick out the ring and you'll be pretty close to the perfect size.

Is size 7 ring 54? ›

Rings
DiameterUSEuropean
17.2754
17.57.2555
17.87.556
18.1857
13 more rows

What is ring size 7 in letters? ›

Ring Sizing
EuropeUS/CanadaUK/Ireland/Australia
53.86 ¾N
54.47N ½
557 ¼O
55.77 ½O ½
54 more rows

What size ring for middle finger? ›

Generally speaking, where the ring finger is size X, your other four fingers size at the following proportions: Pinky finger: 2 sizes less than X. Middle finger: ½ size larger than X. Pointer finger: 1 size larger than X.

What is the average man's ring size? ›

The average men's ring size is a size 9. But what exactly do these sizes mean? Ring sizes are measured in half increments. So, you go from a size 8 to 8.5 to 9 to 9.5 and so on.

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