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Ring Sizing Guide

How to Find Your Ring Size

Getting the right ring size is important for comfort and fit. Here are three easy ways to measure at home.

Method 1: Measure an Existing Ring

Place a ring that fits you well on a ruler and measure the internal diameter in millimetres. Use the table below to find your size.

Method 2: Measure Your Finger

  1. Cut a thin strip of paper or use a piece of string.
  2. Wrap it snugly around the base of the finger you want to measure.
  3. Mark where the paper or string overlaps.
  4. Measure the length in millimetres — this is your finger circumference.
  5. Use the table below to find your size.

Method 3: Use a Ring Sizer

Visit a local jeweller and ask them to measure your finger with a professional ring sizer for the most accurate result. We can also send you a plastic ring sizer in the post for £1.

UK Ring Size Chart

UK Size Diameter (mm) Circumference (mm)
H 14.9 46.8
I 15.3 48.0
J 15.7 49.3
K 16.1 50.5
L 16.5 51.8
M 16.9 53.1
N 17.3 54.4
O 17.7 55.7
P 18.2 57.2
Q 18.6 58.5
R 19.0 59.7
S 19.4 61.0
T 19.8 62.2
U 20.2 63.5
V 20.6 64.8
W 21.0 66.0

Tips for an Accurate Measurement

  • Measure at the end of the day when fingers are at their largest.
  • Avoid measuring when your hands are cold, as fingers shrink slightly in the cold.
  • If you are between sizes, we recommend sizing up.
  • Wider bands tend to fit more snugly — consider going up half a size for wider styles.

Need Help?

Not sure about your size? Contact us and we'll be happy to help you find the perfect fit.