Reference a Ring Size Chart

All our rings are made in standard US sizes. Check the chart below to see how US sizes correspond to finger circumference and convert to international measurements. This sizing applies to engagement rings, wedding bands, and fashion rings alike.

Make Your Own Ring Sizer

What you'll need:   

  • Printer & paper    
  • String, yarn, floss, or a thin strip of paper    
  • Pen or marker    
  • Ruler  

Measure your ring size with these steps:  

  1. Cut a piece of string, yarn, floss, or a thin strip of paper to at least three inches long.   
  2. Wrap string or paper around the base of your finger. 
  3. Mark the point where the ends meet with a pen or marker. 
  4. Lay the string flat and measure the length between the end and your mark with a ruler (mm). 
  5. Use the Ring Size & Conversion Chart to match the millimeter length to the corresponding ring size.

What you'll need:   

  • Printer & paper   
  • Scissors   

Measure your ring size with these steps:

  1. Print the Ring Sizer & Conversion Chart. Make sure to set page scaling to "100%" in your print settings and use standard 8.5 x 11-inch paper.
  2. Follow the instructions to cut out the ring sizer and the small slit.
  3. Wrap the paper sizer snugly around the base of the finger you’re measuring. Make sure the numbers are visible, then insert the pointed end through the slit.
  4. The number that aligns with the slit is your ring size! If your measurement falls between whole and half sizes, keep in mind that quarter sizes are also available.

Measure an Existing Ring

What you'll need:   

  • Printer & paper   
  • Scissors   
  • An existing ring 

Steps:

  1. Print the Ring Sizer & Conversion Chart. Make sure your print settings are set to "100%" and use standard 8.5 x 11-inch paper.
  2. Choose a ring that comfortably fits the finger you’re measuring.
  3. Place the ring over the size circles on the chart until you find the closest match to the inner edge. If the ring falls between two sizes, reach out to us to order a quarter size in between.

Average Ring Sizes for Women and Men

Women's ring sizes typically range from 3 to 9, with sizes 5 to 7 being the most common—size 6 is the most popular. Men's ring sizes usually fall between 6 and 13, with sizes 8 to 10.5 being the most purchased—size 9 is the most popular.These standard sizes can help guide you, but if you need a different size, contact our experts for a special order.

How Should a Ring Fit?

A properly fitting ring should slide over your knuckle with little resistance and rest comfortably on your finger without feeling too tight. It should be secure but still easy to remove with light effort.

What To Do If Your Ring Size Falls Between Two Sizes

If you're between ring sizes, we recommend sizing up rather than down. Finger size can change throughout the day, and a ring that's too tight may be difficult and uncomfortable to remove. If your ring feels slightly loose, there are easy at-home ways to adjust the fit, but increasing the size requires professional help. If a half size isn't quite right, contact us—we can create a custom quarter size to ensure the perfect fit

Ring Size Tips

  • The fingers on your dominant hand are usually larger – measure the hand you plan to wear the ring on.    
  • When the knuckle is bigger than the base of the finger, measure both places and pick a size in between the two. 
  • Keep the ring design in mind when choosing a size. Wider bands feel tighter on the finger, so it's best to go up at least half a size for rings over 4mm. For very thin bands under 1.3mm, consider sizing down for a better fit. Remember that ring sizes are typically measured in millimeters (mm), not inches.
  • Fingers tend to shrink in the morning and cold weather. They also change size throughout the day based on diet and hydration – the best time to measure your finger is in the middle or at the end of the day when it is warm.
  • Measure 3 to 4 times for more accuracy.

KNT Free 30-Day Exchanges & 12-Month Resizes

We’re dedicated to making sure you find the perfect fit, even after delivery. That’s why we offer free exchanges within 30 days and free resizes within 12 months from the shipping confirmation date. Most styles, including eternity, open, and alternative metal rings, can be exchanged for a different size within 30 days. Rings purchased directly from KNT are eligible for the first resize free of charge. For more details, visit our Free 30-Day Returns & Exchanges and Re-Sizing Policy.

Ring Size FAQs