How to find your ring size

Use the dropdown menus below to help find your circumference or diameter measurement. Next, use the chart to see which ring size corresponds to your measurement and find your perfect size.

Diameter is the measurement across the inner width of the ring.
You'll need:
  • A ring that fits you
  • Ruler

Step 1:

Find a ring that fits.

Step 2:

Lay ring on top of ruler, and measure the widest area inside the ring from inner edge to inner edge. Round to the closest whole millimetre.

Tip:

If your ring is a different shape and is not circular, measure the shortest distance across.

Rings

Measurement Type

Diameter Circumference UK US European
14 MM 44 MM F1/2 3 44
14.6 MM 46 MM H 3.75 46
15.3 MM 48 MM H1/2 - I1/2 4.5 48
15.6MM 50 MM J 4.75 49
16 MM 52 MM J-K 5 50
16.2MM 54 MM K1/2 5.5 51
16.5 MM 56 MM L - L1/2 6 52
16.9MM 58 MM M 6.5 53
17.2 MM 60 MM M1/2 - N1/2 7 54
17.5 MM 62 MM O 7.25 55
17.8 MM 64 MM O - P 7.5 56
18.1 MM null P 8 57
18.5 MM null P1/2 - Q1/2 8.5 58
18.8 MM null R 8.75 59
19 MM null R1/2 - S 9 60
19.8 MM null T1/2 10 62
20.4 MM null V 10.5 64

Sizing Tips

When choosing a ring size:

Choose the ring size of the largest finger you’ll be wearing the ring on. When measuring, round to the closest whole millimetre.

Stackable rings:

For a looser fit, select one size up from your normal ring size.

Wide shank rings:

This ring has a wider band. We recommend going one size larger than your normal ring size.

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