How do I find my ring size at home in the UK?

Short answer

To find your ring size at home in the UK, measure the inside diameter of a ring you already wear, or wrap a strip of paper around your finger and mark where it overlaps. Then compare that measurement to a UK ring size chart.

The easiest way to find your ring size at home is to use a ring you already own that fits the correct finger. Place it on a flat surface and measure the inside diameter in millimetres. Then compare that number to a UK ring size chart, which you can find online or ask a jeweller for.

If you do not have a suitable ring, use a thin strip of paper or a piece of string. Wrap it around the base of your finger, mark where it meets, and then measure the length in millimetres. That gives you the circumference, which you can convert to a UK size using a chart.

Remember that fingers change size during the day, in warm or cold weather, and after exercise or eating. Measure at the end of the day when your fingers are slightly larger, and measure a few times to be sure. If you are between sizes, choose the larger one, as it is easier to make a ring smaller than larger. For the most accurate result, visit a jeweller for a professional sizing, but this home method works well as a starting point.