Ring Sizes

Conversion Chart

Diameter

in mm
  • 14.88
  • 15.29
  • 15.70
  • 16.10
  • 16.51
  • 16.92
  • 17.32
  • 17.73
  • 18.13
  • 18.54
  • 18.95
  • 19.35
  • 19.76
  • 20.17
  • 20.57
  • 20.98
  • 21.39
  • 21.79
  • 22.20

USA

and Canada
  • 4
  • 4.5
  • 5
  • 5.5
  • 6
  • 6.5
  • 7
  • 7.5
  • 8
  • 8.5
  • 9
  • 9.5
  • 10
  • 10.5
  • 11
  • 11.5
  • 12
  • 12.5
  • 13
Default

British

equivalent
  • H 1/2
  • I 1/2
  • J 1/2
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • 9.5
  • T 1/2
  • U 1/2
  • V 1/2
  • X
  • Y
  • Z
  • -

Japanese

equivalent
  • 7
  • 8
  • 9
  • 10 - 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20 - 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27

Ring Measuring Tips to Assure The Best Fit

Temperature is important

Don’t measure when your body temperature is either too cold or too hot. A cold finger shrinks while a hot finger expands causing an inaccurate reading. Only measure when fingers are at room temperature.

When two sizes seem to fit

If you hesitate between two sizes of rings, always go with the larger one.

A wider band needs a bigger size

If you consider purchasing a wide band, move up a size from your measurement, for comfort’s sake.

Important: Pay close attention to the listing description to determine whether to choose the next size up or your regular ring size.

Don't use strings

When measuring your finger, always refrain from using a string, they tend to stretch, which can result in wrong size. ALWAYS use a paper strip about 1/2 inch width.

Big knuckles can affect your size

If your knuckle is a lot larger than the base of your finger, and you’re using the virtual ruler, measure both the base of your finger and your knuckle and select a size in between the two.

Use a plain band

Extra wide band styles tend to run slightly small. If your borrowed ring has a narrower shaft than the one you wish to purchase, you may wish to order a ring a size larger than the normal size worn. Also, large stone rings may cause the shank to lift up when laid on its side on the display, slightly distorting the size measurements.

For best result, visit a local jewelry store.

An established jewelry store has trained their sales person to measure one’s finger. You will most likely get your size correctly over there.

Christmas order cut off date is December 5. Any order that comes after that will not be guaranteed to arrive before Christmas unless they are READY TO SHIP items. Dismiss

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