Ring Size Chart

When it comes to finding the perfect fit for your ring, it's important to know your ring size. Use the chart below as a guide to determine your ring size.

Determining the Size Using Your Current Ring

1. Take the ring that fits you perfectly.

2. Measure its inner diameter (in millimeters).

3. Use our size chart to determine your size.

If You Don't Have a Ring

1. Wrap a strip of paper around your finger where you want the ring to sit.

2. Make sure the paper fits snugly – the tighter, the better, to ensure the most accurate measurement.

3. Mark where the paper overlaps and measure the distance using a ruler (in millimeters).

4. Use our chart to determine your size.

Standard Ring
Inside Diameter (mm) Copine Size US UK
16 mmXS – 505 1/4K
16.5 mmS – 526L 1/2
17.3 mmM – 547N 1/2
18.3 mmL – 588Q
Pinky Ring
Inside Diameter (mm) Copine Size US UK
14 mmXS – 443F
14.5 mmS – 453.5G
15 mmM – 474H