Find Your Ring Size:

Infographic titled “Method 1: Measure Your Ring” that explains how to measure your ring size using an existing ring. The instructions are:  Use a ring that comfortably fits the finger you plan to wear it on.  Measure the inside diameter of the ring, from edge to edge. Make sure to align your ruler with the zero starting point.  To the right of the instructions is a size chart showing US ring sizes from 4 to 13 along with their corresponding inside diameters in both inches and millimeters:  Size 4: point 585 inches / 14 point 86 millimeters Size 5: point 618 inches / 15 point 7 millimeters Size 6: point 65 inches / 16 point 51 millimeters Size 7 (labeled as “Most Popular for Women”) : point 682 inches / 17 point 32 millimeters Size 8: point 714 inches / 18 point 14 millimeters Size 9 (labeled as “Most Popular for Men”) : point 746 inches / 18 point 95 millimeters Size 10: point 778 inches / 19 point 76 millimeters Size 11: point 81 inches / 20 point 57 millimeters Size 12: point 842 inches / 21 point 39 millimeters Size 13: point 874 inches / 22 point 2 millimeters  The infographic features a circular diagram showing a red arrow across the diameter of a ring. Grey labels highlight the most popular sizes for men and women.Infographic titled “Method 2: Measure Your Finger” that explains how to measure your ring size using a paper strip. The instructions are:  Cut a thin strip of paper.  Wrap it around the spot on your finger where you want the ring to sit. Pull the paper snugly against your finger to get your most accurate fit.  Mark where the paper overlaps.  Lay it flat and measure the length of the paper.  To the right of the instructions is a size chart showing US ring sizes from 4 to 13 along with their corresponding inside circumferences in both inches and millimeters:  Size 4: 1 point 84 inches / 46 point 68 millimeters Size 5: 1 point 94 inches / 49 point 32 millimeters Size 6: 2 point 04 inches / 51 point 9 millimeters Size 7 (labeled as “Most Popular for Women”) : 2 point 14 inches / 54 point 4 millimeters Size 8: 2 point 24 inches / 57 millimeters Size 9  (labeled as “Most Popular for Men”) : 2 point 34 inches / 59 point 5 millimeters Size 10: 2 point 44 inches / 62 point 1 millimeters Size 11: 2 point 54 inches / 64 point 6 millimeters Size 12: 2 point 65 inches / 67 point 2 millimeters Size 13: 2 point 67 inches / 67 point 7 millimeters  The infographic has two grey callouts to indicate the most popular sizes for men and women.


Pro Tips

Finding the right ring size isn’t just about measurements—factors like time of day and ring style can affect how a ring fits. Keep these tips in mind to ensure the best fit:
  1. Fingers tend to be larger in the morning due to overnight fluid retention and smaller in the evening.

  2. Fingers on your dominant hand (the one you write with) are often slightly larger than on your non-dominant hand.

  3. Choose a larger size:
    - If you're between two sizes
    - If the ring has a wider band
    - If your knuckle is larger than the base of your finger

  4. You can also use a ring size app to measure a ring you already own. Simply place your ring on your phone screen and adjust the guide to match the inside diameter.

    Click here for iOS users | Click here for Android users

    Disclaimer: Nominal is not liable for inaccuracies, miscalculations, or misuse of the app.