Ring Size Guide– Koemi Studio

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Fit guide

Find your ring size.

The perfect fit starts here. Follow the steps below and your new ring will fit like a dream from the moment it arrives.

Already have a measurement?

Enter it in millimetres and we'll match it to your size.

Your size will show here.

Ring size chart.

Koemi rings use US sizing. Measurements are in millimetres.

US sizeInside diameterCircumferenceUK / AU
3 14.1 mm 44.2 mm F
4 14.9 mm 46.8 mm H
5 15.7 mm 49.3 mm J
6 16.5 mm 51.9 mm L
7 17.3 mm 54.4 mm N
8 18.1 mm 57.0 mm P
9 19.0 mm 59.5 mm R

Two ways to measure.

Easiest

Measure a ring you own

  1. Find a ring that fits the finger you’re shopping for perfectly.
  2. Measure straight across the inside of the ring, in millimetres.
  3. Match that inside diameter to the chart.

No ring to hand

Measure your finger

  1. Take a piece of string or a thin strip of paper.
  2. Wrap it around the base of your finger.
  3. Mark the point where the string or paper overlaps.
  4. Lay it flat and measure the length in millimetres.
  5. Match that circumference to the chart.

For the best fit.

  • Measure at room temperatureFingers expand when warm and shrink when cold. Measure in the morning, when your body is cool and swelling won’t affect the result.
  • Between sizes? Go upIf your measurement falls between two sizes, order the larger one.
  • Mind the knuckleIf your knuckle is much larger than the base of your finger, measure both and choose a size in between. The ring should slide over your knuckle without being loose enough to shift around.

Still unsure?

Send us your measurement and we’ll help you pick. And if it isn’t quite right when it arrives, exchanges are open for 30 days.

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