US Ring Size 13

A US size 13 ring has an inner diameter of 22.60 mm and an inner circumference of 71.0 mm.

Inner diameter
22.60 mm
Circumference
71.0 mm
UK / Australia
Z
EU / Germany
71
India
44

Is size 13 right for you?

1

Check the band width

If the ring band is wider than 6 mm, order half a size up from 13. Wide bands sit higher on the knuckle and feel tighter than the measurement suggests.

2

Measure at the right temperature

Fingers shrink in the cold and swell in heat. Confirm the reading with warm hands at the end of the day, when your fingers are at their largest.

3

Clear the knuckle first

The ring has to pass over your knuckle before it can rest at the base. If your knuckle is noticeably wider, size up from 13 and consider a comfort-fit band.

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