How To Determine Ring Size - Alexis Jae Jewelry

How To Determine Ring Size

By Alexis Taub

How To Determine Ring Size - Alexis Jae Jewelry

How To Determine Ring Size

Welcome to our ring size guide! Our recommended method for measuring ring size is the “string method” because it’s quick, easy, and reliable. All you’ll need to find your ring size at home is:

  • A piece of string, dental floss, measuring tape, or a thin strip of paper
  • A pen or marker
  • A ruler or a millimeter tape measure

Of course, ring sizer tools are also available for a low cost, or a local jeweler should be able to help!

Step 1: Gather Your Materials

Begin by collecting your string, pen, and tape measure. Ensure the string or piece of paper is long enough to wrap around your finger comfortably. 

Step 2: Wrap the String Around Your Finger

Take the string or paper and wrap it around the part of your finger where you intend to wear your ring - usually the base of your finger. Make sure it's snug but not too tight - you want to replicate the desired fit of your ring. It does need to fit over your knuckle.

Remember, stretchy string or yarn can skew your results - try not to stretch the material.

Step 3: Mark the Overlap

Once the string is wrapped around your finger, use the pen or marker to mark the point where the string overlaps itself. This point represents the circumference of your finger.

Step 4: Measure the Length

Remove the string from your finger and lay it flat on a table. Using a ruler or tape measure, measure the length from the end of the string to the marked point in millimeters to determine your finger’s circumference. 

Step 5: Find Your Ring Size

Find your perfect ring size using our ring size chart below. Standard ring sizes are the same across fine jewelry and fashion jewelry. Keep in mind that international ring sizes vary. However, there are conversion charts you can use to help get sizing for different regions. 


String Length (mm)

Ring Size (US/Canadian)

14.8 mm


15.6 mm


16.45 mm


17.3 mm


18.2 mm


19 mm


19.8 mm


20.6 mm


21.4 mm


22.2 mm


Considerations When Determining Your Ring Size

  • Measure your finger multiple times throughout the day, as finger sizes can change slightly due to temperature and activity. If you are only taking one measurement, measure at the end of the day.
  • If your measurement falls between two sizes, choosing the larger size is better for a more comfortable fit. However, first time ring wearers often choose a larger size because they are not used to something on their finger. The perfect fit is not loose.
  • Different fingers may have different sizes, so measure the finger you intend to wear the ring on. Even your left ring finger and right ring finger are other! Your dominant hand tends to be slightly larger.
  • Keep in mind that the more a ring covers your finger, the tighter the ring will fit. Thicker ring bands will generally fit more snugly than thinner bands. 
  • When purchasing a ring, always check the description for phrases like “runs true to size” or “order the next size up,” as some rings may run a little large or small.
  • Some rings can’t be resized so make sure to get this right. For example, pave band engagement rings and wedding bands are challenging to resize.

Ring sizing tips

  • The average ring size ranges from 3-9.
  • Be wary of printable ring sizing charts. They will often lead to the wrong ring size.
  • It is always the best bet to go to a professional at a jewelry store if you can.
  • Pro tip: If you’re looking to figure out your partner’s ring size for a gift or wedding ring, take their existing ring to the jewelry store. There are tools that can be used to measure the diameter of the ring. They also might have shared it with a family member, so ask around! However, it is best to ask your partner to get the exact size.
  • At Alexis Jae Jewelry, almost all our rings come in half and quarter sizes. Just reach out to get the correct ring size!


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