Ring size chart: US, UK and EU

Every size from US 3 to 13, with the inside diameter and circumference. Type a measurement to find its row.

Under 30 counts as a diameter, 30 and over as a circumference.

USUKEUInside, mmAround, mm

Screens and paper can be off by a little. Before you order, tell the jeweler how you measured and ask about resizing.

Reading the chart

US and Canada use numbers in half sizes; the UK, Ireland and Australia use letters; most of Europe uses the inside circumference in millimeters. Charts from different jewelers can differ by about half a size, so ask yours which scale they use.

Need the number first? Measure a ring on your screen, or see how to find a ring size secretly.