Understanding Ring Size Measurements: An In-Depth Guide



Recent post

Buying the most famous piece of jewelry in the world may be a stressful experience if you don’t know what size ring you need. The worst-case scenario is discovering that S, M, and L sizes are not uniform across jewelry categories while attempting to buy a ring as a gift.

Shopping for a significantly expensive ring like a diamond ring can be a stressful and frustrating experience if you have trouble deciding on its size, even more so if you are having a hard time reading a ring size chart. But what can you do about it?

In this article, you will gain a deeper understanding of ring size measurements and how they translate into ring size charts. Let’s get started.

Ring Size Charts and Sizing Fundamentals

There are a lot of things to consider when measuring your ring finger and comparing it to a decent ring size chart. Why? because there are many things that could affect the ring size outcome.

If you want to choose a ring that fits perfectly, you must first understand the fundamentals of ring sizing. This is especially true if you’re looking for a diamond engagement ring or wedding band. Here are some ring-sizing facts that you can consider before comparing the measurements with a ring size chart.

  1. Finger Size

There are various finger shapes, and these differences may affect how a ring looks and feels when worn. You can tell whether your ring finger is tapered because it expands at the base and is narrower at the top.

For those with tapered fingers, a loose ring may slip up and off, so a good fit is crucial. On knotted fingers, rings have to go over the knuckle in the center of the finger, which is the broadest section of the finger.

The ring, however, might slide around your finger and end up being too big at the knuckle. You might have some different-sized beads put on your bauble. These little add-ons might help you keep your hand stable by resting on the inner ring’s base. Assembling and disassembling them is a breeze.

2. Band Width

The greater the metal volume surrounding your finger, the more snug the fit. If you are looking for a size 6, make sure it’s not too thin or too thick. Choose a fractionally smaller ring size if your heart is set on a fine, delicate band (which is hugely popular right now).

3. Right Timing to Measure the Ring

The conditions on your ring finger are surprisingly crucial for a precise reading. Temperature variations cause our fingers to extend in the summer and retract in the winter.

Having a healthy internal temperature is essential, she explains. Since your fingers may be swollen in the morning, it’s best to be measured in the middle of the day at room temperature.

Explain the Meaning of Ring Size Numbers

All the way up to size 15, half sizes, and quarter sizes of rings are available in the United States and Canada. The inner diameter or circumference of the ring band corresponds to these measurements. A size 3 ring has a diameter of 14 millimeters, whereas a size 13 ring has a diameter of 22.2 millimeters.

Just one millimeter may make the difference between a ring that fits well and one that causes pain. When it comes to ease of wear, a change of even half a size may make all the difference.

International Ring Size Chart

Diamond rings are measured the same way everywhere; however, the size scales may change. The United Kingdom, Australia, and South Africa employ alphabetical size systems, whereas Asia and Europe employ numerical ones.

Use this simple size conversion table to go from the US ring size to another country’s ring size (or vice versa).

Diameter in mm  US size  EU size
14 3 44
14.8 4 47
14.4 3.5 46
15.2 4.5 48
15.6 5 50
16.0 5.5 51
16.45 6 52
16.9 6.5 53
17.3 7 54
17.7 7.5 56
18.2 8 57
18.6 8.5 58
19 9 60
19.4 9.5 61
19.8 10 62
20.2 10.5 64

How Do You Determine Your Ring Size?

  1. See a Jewelry Store to Get Measured

Go to a jeweler to find out what size ring you need; they will know how a ring should fit, and their ring size chart will help you. Most jewelers will give you a free ring sizer without requiring a purchase.

Fingers swell after eating, drinking, or participating in extended retail therapy, so do this before lunch.

2. Plastic Belt Ring Sizing Method

A plastic belt ring sizer is the most accurate tool for determining your ring size at home. You can get them for a few dollars at several internet stores, most of which come in full, half, and quarter sizes. They hit the mark almost every time and don’t break the bank.

3. Using a Printable Ring Sizer

You may use the ring sizer that is included at the end of the size guide if you print it out and then cut it out. Measure the ring size with the above measurements to determine whether the guide was printed to scale.

Cut the sizer to length, wrap it around your left ring finger, and put the tip through the slot. To ensure a snug fit, gently draw it closed. To find out what size ring you are, look at the sizer’s number.

4. The Ring Method

Choose a ring that currently fits your left hand’s ring finger and measure it next to a ruler. To do this, measure the inside diameter of the ring and see whether it fits the norm.

You might also print out the guide at the actual size and lay the ring on top of the ring photos to get an accurate reading of the diameter and ring size.

5. Avoid the Paper Trick

By wrapping a short piece of paper around your ring finger and holding it at the knuckle, you may measure the diameter of your ring. You could also use string, but it’s thin and quickly shifts position.

If you use this method, make sure the paper isn’t wrapped too tightly around the ring. If you want to remember where the two sheets of paper met, make a little pencil mark there.

Your ring size may be determined by holding the paper to a ruler and comparing the resulting measurement to the circumferences.


The ideal engagement ring in most people’s minds is one with a big, dazzling center stone. But who determines what size is too large and what size is too small? Does it really make a difference how big the engagement ring is? 

The short answer is that it definitely is! Thus, it is best to look for a reliable ring size chart before your purchase.

Read More

Related Articles