Ring size guidemeasure twice

Find your perfect fit

Every Kagenoishi ring is made to order, so getting the size right matters. It takes a few minutes: measure, type the number below and we show your size.

Method 1: measure your finger

  1. Wrap a thin strip of paper or a string around the base of your finger.
  2. Mark the point where it overlaps. It should be snug but still slide over the knuckle.
  3. Lay it flat and measure the length in millimetres. This is your circumference (C).

Your EU size is the same number as your circumference in millimetres: 57 mm is size 57.

Method 2: measure a ring you already own

  1. Take a ring that fits the finger you plan to wear the new one on.
  2. Place it on a ruler and measure the inside diameter (D) from edge to edge, in millimetres.
  3. Type it above, or find the closest diameter in the chart.

Method 3: ask a jeweller

Any local jewellery shop can measure your finger in a minute, usually for free.

Tips for an accurate measurement

  • Measure at the end of the day, when your fingers are at their largest.
  • Avoid measuring with cold hands. Fingers shrink in the cold and swell in the heat.
  • If your knuckle is wider than the base of your finger, measure both and choose a size in between.
  • Your dominant hand is usually slightly larger.
  • Between two sizes? Choose the larger one.
  • Measure two or three times to be sure.

Size chart

EU sizeCircumference, mmDiameter, mmDiameter, inUS size*
484815.280.604½
494915.600.615
505015.920.635¼
515116.230.645¾
525216.550.656
535316.870.666½
545417.190.686¾
555517.510.697¼
565617.830.707½
575718.140.718
585818.460.738½
595918.780.748¾
606019.100.759¼
616119.420.769½
626219.740.7810
636320.050.7910¼
646420.370.8010¾
656520.690.8111¼
666621.010.8311½
676721.330.8412
686821.650.8512¼

* US sizes are approximate. Your EU size equals your finger circumference in millimetres. Need a size outside the chart? Write to us: we make it to measure, but such pieces cannot be returned.

Got it wrong anyway?

Write to us within 14 days of delivery. We remake your ring in a different size and you only pay shipping both ways. Returns and exchanges