How To Measure Ring Size

The internet has made everything so accessible, and this is also true when it comes to measuring ring sizes. It’s now possible to know your ring size without having to go to a jewelry store physically just to see if a particular engagement ring will fit you. So if you want to learn how to measure your finger for a ring but keep it on the down-low, we’ve come up with the ultimate ring size guide on how to measure the ring size. 

How to Size a Ring?

There are various ways in which you can check your ring size. It can be as easy as making your way to the local jewelers to measure your fingers, but there are even simpler ways to achieve this at home. Here are just a few ways to find out the answer to the burning question of “what size ring do I wear?”

Measuring a Your Existing Ring

If you already have a ring that is already a good fit for your finger, all you need to do is take a ruler and measure the ring’s inside diameter. Place the ruler from edge to edge of the ring and measure it right across inside the ring. Record the measurement in millimeters and use a ring size chart to find your ring size. 

Print Out a Paper Ring Sizer

You can also look for ring sizer cut-outs online and print them out using a computer at home. This is one of the easiest ways to get a measure from the comfort of your home. Just make sure that the guide you print is accurate and are using the right measurements when printing. 

What is a Ring Size Chart? 

A ring size chart is essentially a chart that helps with how to determine a ring size that will fit comfortably on your finger — here is a simple step-by-step on how to use a ring size chart. 

Step 1: Use a piece of paper, fabric, or string and wrap it around the base of the finger where you wish to wear your ring. 

Step 2: Ensure that the paper or string has a snug fit, but it shouldn’t be tight. Then mark the spot where the material overlaps. 

Step 3: Measure the string in millimeters and check your ring size chart to see which size the measurement falls under. 

The ring sizes on a U.S. ring chart will usually have a scale of numbers and half numbers. These represent ring sizes between sizes 3 to 9 for women, and between 8 to 14 for men. Each unit will correspond with our fingers’ width in millimeters — a size 3 ring will fit any finger that’s 14 millimeters across. 

The sizes then climb from there, where a woman’s average ring size is between 5 and 7. However, it’s best to get an exact size or measurements on a ring before purchasing since engagement rings aren’t cheap. 

What is a Ring Sizer Tool?

If you’re worried that the method mentioned above isn’t accurate enough — especially for men who need to know how to measure ring size for women — then this next option is for you. This easy-to-use measurement tool can be ordered on our site and provides better accuracy.


The best ring-sizing tools come in two models: one that looks like a keyring with lines of gradient-colored ring sizes and one that looks like a thin measuring tape. A popular model makes use of the measuring tape design that’s designed to work as a small belt and has a plastic arrow marker that slides for you to measure your ring size. Another model is known as a “ring of rings,” which allows you to try out sizes from 1 to 13, and includes half sizes.

Tips for Measuring Ring Size at Home

Before you start measuring your ring size, be sure to remember a few of these pointers to guarantee an accurate measurement for your ring. 

Measure More than Once 

This is especially true when it’s your first time measuring the size of your fingers to find the perfect ring. Experts recommend making three to four measurements to ensure accuracy. This is because the size of our hands and fingers become bigger or smaller depending on the temperature.  

Consider the Size of Your Knuckle  

If your knuckle is a bit bigger, then be sure to look for a ring that's slightly bigger, potentially a half size. The ring should have some resistance on the knuckle though in order to ensure it won't accidentally fall off. We are firm believers that if something can get over your knuckle one way, then it'll be able to go back the other way. You may just need a little soap or spit to coax it off.

What Should I Do if I’m in Between Sizes? 

If you feel you could use an in between size, just place your order and mention if you'd like it a quarter size larger or smaller in the note section at checkout. We're happy to accomodate!

Can All Rings Be Resized? 

All of our Bloedstone rings can be resized and we're happy to do it.  We charge $100 for resizing our bands and $150 to resize our signets. Please contact us at and we'd be happy to help you out.  However, not every ring can be resized, which is why you need to take extra care when purchasing rings, especially if they’re for someone else.

Shop at Bloedstone Today 

Crazy about rings? We are too, which is why you’ll find that we have a unique collection of rings on our website. Feel free to browse through our signet rings and wedding bands to find the right style for you.