How to Measure at Home
Wrap a narrow strip of paper or a piece of string around the base of the finger. Mark where it meets, then measure the length in millimeters and compare it with a reliable ring size chart.
Check the Fit
Fingers change size during the day and with temperature. Measure when your hands are at a comfortable, normal temperature, and make sure the ring can pass over the knuckle without feeling loose.
Need Help?
If you are between sizes or choosing a wide band, ask the studio for guidance before ordering. A small adjustment can make a meaningful difference in everyday comfort.
Free Ring Sizer + Ring Size Chart FAQ
Can I resize an engagement ring?
Many rings can be resized, but the range depends on the design, setting, and metal. Confirm the policy for the specific piece before ordering.
What if I do not know their ring size?
Borrow a ring they already wear on the same finger, ask a close friend or family member, or choose a design with a flexible fit when appropriate.