Finding your size

French ring sizes, from 48 to 62.

FR sizeFinger circumferenceInner diameter
4848.0 mm15.3 mm
4949.0 mm15.6 mm
5050.0 mm15.9 mm
5151.0 mm16.2 mm
5252.0 mm16.6 mm
5353.0 mm16.9 mm
5454.0 mm17.2 mm
5555.0 mm17.5 mm
5656.0 mm17.8 mm
5757.0 mm18.1 mm
5858.0 mm18.5 mm
5959.0 mm18.8 mm
6060.0 mm19.1 mm
6161.0 mm19.4 mm
6262.0 mm19.7 mm

Three measuring tips

Measure at the end of the day: fingers are truest in the evening, never on waking nor after the cold.

The reference ring: measure the inner diameter of a ring that already fits, worn on the same finger.

When in doubt, size up: tightening a ring is simpler than enlarging it.

A wide band feels tighter than a fine one at the same size: always take the band’s width into account. More on choosing in Choosing an engagement ring.