US Trends

what size ring do i wear

The easiest way to find your ring size is to measure the inside circumference of a finger with a strip of paper or string, then match it to a ring-size chart. A good fit should slide over your knuckle and feel snug without pinching.

How to measure at home

  1. Wrap a strip of paper or non-stretch string around the finger you’ll wear the ring on.
  2. Mark where it overlaps.
  3. Measure that length in millimeters with a ruler.
  4. Compare it with a sizing chart.

Quick size guide

US size Inside diameter Circumference
515.7 mm49.3 mm
616.5 mm51.9 mm
717.3 mm54.5 mm
818.2 mm57.2 mm
918.9 mm59.3 mm

Helpful tips

  • Measure at the end of the day, when fingers are usually a bit larger.
  • If you’re between sizes, choose the larger one.
  • Wide bands can feel tighter, so you may need to go up by half a size.

Fastest accurate option

If you want the most reliable result, have a jeweler size your finger or try on a ring sizer in person.

If you want, I can also help you estimate your size from a finger measurement in mm.