How to Measure your Ring Size without Leaving Home

Are you searching for the perfect ring? Maybe you have been hinting to your loved one about that diamond engagement ring you saw last week? 

Figure out your ring size easily without leaving the comfort of your home with these simple tips to ensure the ring you choose fits perfectly.

A ring in the fold of a book causing a heart-shaped shadow.

What does the "perfect fit" mean?

Professional jewelers worldwide would probably describe the "perfect fit" ring as a ring that fits your finger comfortably. It is tight enough not to fall off but loose enough to slide over your knuckle when a little resistance is applied.

U.S. ring sizes follow a scale of numbers and half numbers ranging from ring size 3 to about 13.5 for adults. Women's rings are typically between sizes 3 and 9, while men's rings are usually between 8 and 14. The ring size number should match up to your finger's width in millimeters. 

For example, A ring size of seven fits a ring finger close to 17 millimeters across. While a smaller ring size of three would only be 13 mm in diameter. The average ring size is between 5 and 11, but it's always best to get an exact ring measurement before spending a lot of money.

A ring with a yellow stone.

Finding the "Perfect Fit"

Before you attempt to measure your finger and find your "perfect size" ring, there are a few tips that are good to know:


To avoid being unable to slide your ring on easily, it is essential to factor in the knuckle. If you know your knuckle is on the bigger side, it is a good idea to order a half a size bigger than your finger measurements indicate.

Measure Thoroughly

Measuring your finger more than once is vital. In fact, do it more than three or four times and at different times of the day. Measuring multiple times ensures accuracy because the size can fluctuate depending on temperature and other conditions

We probably have all experienced waking up, and the ring we comfortably wear every single day suddenly feels like it's magically shrunk overnight. What tends to happen is when a person becomes overheated, the hands and fingers tend to swell, so the ring gets tighter. In colder weather or water, sometimes you might lose your jewelry as your skin shrinks. 

How to Measure your Ring at Home with Ease

Knowing your size before going out to the local jewelry store is always beneficial. However, more and more people are buying quality rings online. Even important rings like engagement, wedding, and anniversary bands. So before you buy, remember these tips to ensure you know your "perfect fit" number. 

Related: The Evolution of Engagement Rings

Below are three hassle-free ways to measure your ring size at home—using string, a sizer, or a ring chart—it can be a breeze to find the perfect piece of jewelry that fits well every time.

For beautiful handcrafted rings, be sure to check out LaCkore Couture.

Use Floss or String to Measure Your Finger

String and materials like floss can stretch, so try not to pull them too tightly when measuring. What happens when you stretch the string is that your ring finger size may appear to be larger than your finger is. 

  • Take any length of floss or string and lightly wrap it around the base of your finger.
  • Mark the point where the string first overlaps with a pen or marker.
  • Stretch, but don't pull, the length of the string along a ruler, and jot down the measurement in millimeters.
  • Use a ring size chart to compare your measurement to the standard ring size set, which goes up by 0.4 millimeters every half-size. 

Professional Tip: Make sure to measure more than once to get the best average of the exact diameter of the base of your finger! 

jeweler working on a ring

Get a Ring Sizer

It is convenient to go to your favorite jewelry store and have them measure your ring size professionally. However, not everyone can leave their homes freely, and more and more rings are being purchased online. You can buy your own ring-measurement tool for the most accurate measurement from home.

 Most of these products are super affordable, readily available online, and sometimes even free if you pay the shipping fees. These tools that help size rings come in two categories: one with multiple keyrings, and the other is a simple thin measuring tape

Related: Symbols Stamped on Jewelry: What they mean

Utilize an Old Ring and Ring Chart

Do you have a ring already at home that fits perfectly on your finger? You might be in luck. Try this easy at-home hack:

  • First, grab one of your nicest fitting rings
  • Then, print out a free true-to-size online ring size chart and place your ring on the circles until you find the one that matches up with the inside circumference of the ring. 

Related: 5 Things You Must Know Before Buying Jewelry

Ring Sizes Around the World

Ring size refers to the measurements of a ring as a whole. It is essential to know that every person has a different ring size, and, furthermore, every country has its own ring sizing chart

In the United States, a number chart, as previously mentioned, is used. These numbers range from 0 to 16. An alphabetized system is used in the U.K. and other parts of Europe. Other countries like China and Japan use a numbered system like the U.S., but one that works entirely differently. 

How Much Does it Cost to Resize a Ring?

A simpler resize can cost anywhere from 20 to 100 dollars, depending on the type of metal used and where you are located worldwide. However, a more complex resizing can cost a lot more and take more than a few hours, sometimes up to months for more intricate settings. 

Luckily if you have to resize your favorite ring, it can be an affordable option for correcting a measuring mistake. However, this makes pre-sizing that much more critical. It truly saves money and time in the long run. Save up for your dream vacation so you can shine like that diamond!

Shop LaCkore Couture today to find your new favorite ring.