Find your ring size at home in two minutes
19 October 2026 · 2 min read

EU ring sizes are simply the inside circumference of the ring in millimetres, which makes measuring at home easy.
With a strip of paper
- Wrap a thin strip of paper around the base of your finger.
- Mark where the paper overlaps and measure the length in millimetres.
- That number is your EU size, e.g. 54 mm = size 54.
With a ring you own
Measure the inside diameter of a ring that fits and multiply by 3.14 to get the circumference, i.e. your EU size.
Tips
- Measure in the evening when fingers are slightly larger.
- Between two sizes? Choose the larger one, especially for wide signet rings.
- Open rings adjust gently by hand within a few sizes.
See the full chart in our ring size guide.