Getting the perfect fit is easy. Choose one of the two simple methods below — measure a ring that already fits, or measure your finger with a paper strip — then match your measurement to our international size chart.
Measure your ring size using an existing ring
Measure your ring size using a paper strip
Two easy ways to find your ring size
Method 1 — Measure a ring that fits
Read the inside diameter in millimetres and match the Inside ø (mm) column.
Method 2 — Measure your finger
Read the circumference in millimetres and match the Circumference (mm) column.
Ring Size Conversion
Compare sizing systems from around the world. Choose your current size, then convert it to any other system instantly.
Complete Ring Size Chart
Swipe horizontally to see all columns →
| UK / AUS / NZ | US / Canada | Europe | Inside ø (mm) Method 1 | Circumference (mm) Method 2 |
|---|---|---|---|---|
| F | 3 | 44 | 14.0 | 44.0 |
| G | 3.25 | 45 | 14.3 | 44.9 |
| H | 3.75 | 46 | 14.7 | 46.0 |
| I | 4 | 47 | 15.0 | 47.1 |
| J | 4.5 | 48 | 15.3 | 48.1 |
| K | 5 | 49 | 15.7 | 49.3 |
| L | 5.5 | 51 | 16.1 | 50.6 |
| M | 6 | 52 | 16.5 | 51.8 |
| N | 6.5 | 53 | 16.9 | 53.1 |
| O | 7 | 54 | 17.3 | 54.3 |
| P | 7.5 | 56 | 17.7 | 55.6 |
| Q | 8 | 57 | 18.1 | 56.9 |
| R | 8.5 | 58 | 18.5 | 58.1 |
| S | 9 | 60 | 19.0 | 59.7 |
| T | 9.5 | 61 | 19.4 | 60.9 |
| U | 10 | 62 | 19.8 | 62.2 |
| V | 10.5 | 64 | 20.2 | 63.5 |
| W | 11 | 65 | 20.6 | 64.7 |
| Z | 12 | 67 | 21.4 | 67.2 |
Prefer to measure on paper?
Download our printable ring size guide with a calibration ruler so you can check the print scale.
Download Ring Size GuideFor the most accurate fit
- Measure more than once and take the average.
- Measure later in the day, when fingers are at their largest.
- Avoid measuring when your hands are very hot or cold.
- The ring should pass over your knuckle comfortably.
- Wider bands can feel tighter, so consider sizing up slightly.
- Always measure the exact finger the ring will be worn on.
Need help finding your ring size?
Our team is happy to guide you. Book a virtual appointment or get in touch and we’ll help you confirm the perfect fit before your ring is made.
Frequently Asked Questions
How can I measure my ring size at home?
You can measure a ring that already fits by checking its inside diameter in millimetres, or wrap a thin paper strip around your finger and measure the length where it overlaps. Match either measurement to our size chart.
Can I use a ring I already own to find my size?
Yes — that is the most reliable method. Choose a ring worn on the same finger, measure straight across the widest inside edge, and compare the diameter to the chart.
When is the best time of day to measure my finger?
Late in the day, when your fingers are at their largest. Avoid measuring first thing in the morning or when your hands are cold.
What should I do if I am between two sizes?
Choose the larger of the two. A ring that is slightly loose is far more comfortable than one that is too tight.
Does a wide ring fit differently from a narrow ring?
Yes. Wider bands cover more of the finger and can feel tighter, so you may prefer to size up slightly for a wide design.
Can I order using my local ring size?
Absolutely. Use the converter above to translate your local size into a UK size, or simply tell us your size and system when you order and we will confirm it.
Why does my finger size change?
Fingers naturally change with temperature, time of day, exercise and the weather. Measuring a few times gives the most dependable result.
Which finger should I measure?
Measure the exact finger the ring will be worn on — sizes differ between hands and even between neighbouring fingers.
