Jewellery

Ring (Inner Diameter) Size Chart

This Ring (Inner Diameter) size chart covers 8 sizes (5 – 12) across 1 measurements: inner diameter. Values are in millimetres, and you can switch the table to centimetres.

Size chart

Ring Size (US)Inner Diameter (mm)Circumference (mm)
515.749.3
616.551.9
717.354.4
818.157.0
919.059.5
1019.862.1
1120.664.6
1221.467.2
Fit tip

Measure a ring that already fits and match its inner diameter. Size when your hands are warm, as fingers shrink in the cold.

How to measure

Ring (Inner Diameter) Size Chart: how to measure, with labelled measurement points
  1. A
    Inner Diameter

    Measure straight across the inside, from one inner wall to the opposite wall.

About these measurements: they're typical values for this kind of product, meant as a starting point. Every brand's fit is different, so adjust them to match your own garments before publishing.

All size charts →