Find your ring size
A ring you already love is a good place to start.
I have a ring that fits
mm
Inside diameter
Measure the opening, not the metal. Diagram not to scale.
Choose a ring that fits the intended finger on the same hand.
Lay it flat. With a millimetre ruler, measure across the centre from inside edge to inside edge .
Repeat the measurement, then compare it with the chart below. For example, an inside diameter of 17.2 mm is approximately EU 54 .
View the size chart
EU size is the inside circumference in millimetres. Diameters below are approximate. Check the product’s size choices for availability.
EU ring sizes and approximate inside diameters
EU size / circumference (mm) Inside diameter (mm)
45 14.3 46 14.6 47 15.0 48 15.3 49 15.6 50 15.9 51 16.2 52 16.6 53 16.9 54 17.2 55 17.5 56 17.8 57 18.1 58 18.5 59 18.8 60 19.1 61 19.4 62 19.7 63 20.1 64 20.4 65 20.7
I don’t have a ring to measure
A jeweller or a ring sizer can help you find a comfortable fit. For a rough estimate at home, wrap a narrow strip of paper around your finger, mark the overlap and measure the length in millimetres. Keep it snug without squeezing, and check that it can pass over your knuckle.
Measure at the end of the day with your hands at a normal temperature. Wider bands can feel tighter. If you are between sizes or unsure, ask for help before ordering.
I’m unsure — help me choose
Send me the ring you’re interested in and your measurement, including whether it is a diameter, circumference or a known size.
Email me for sizing help