Ring Sizing
A comfortable fit starts with the right measurement. Use our ring sizing guide to measure your finger or a ring you already own, then compare your measurement with the chart below.
For the most accurate fit, we recommend professional sizing. At-home measurements are a useful starting point, but small differences can affect your ring size. If you’re unsure, contact us before ordering.
Measure your finger
What you’ll need: A narrow strip of paper or non-stretch string, a ruler marked in millimetres, and a pen.
- Wrap the paper or string around the base of the finger where you plan to wear your ring.
- Check that it sits snugly without squeezing. The size should also allow the ring to pass over your knuckle.
- Mark the point where the ends overlap.
- Lay it flat and measure from the starting end to your mark in millimetres.
- Compare your measurement with the circumference column in the chart.
Tip: Repeat your measurement to check consistency. Avoid pulling string tightly or using material that stretches.
Measure a ring you own
What you’ll need: A ring that fits your chosen finger and a ruler marked in millimetres.
- Choose a ring that fits comfortably on the same finger and hand where you’ll wear your new ring.
- Place the ring flat on a level surface.
- Measure straight across the centre of the opening, from one inside edge to the opposite inside edge.
- Record the measurement in millimetres, excluding the metal band.
- Compare your measurement with the inside diameter column in the chart.
Tip: Measure through the centre of the ring, not diagonally across a smaller part of the opening.
Ring size chart
Use circumference for a finger measurement or inside diameter for an existing ring. Scroll within the chart to see all sizes from 3 to 13.
| Ring size | Circumference Millimetres | Inside diameter Millimetres |
|---|---|---|
| 3.00 | 44.2 | 14.1 |
| 3.25 | 44.8 | 14.3 |
| 3.50 | 45.5 | 14.5 |
| 3.75 | 46.1 | 14.7 |
| 4.00 | 46.8 | 14.9 |
| 4.25 | 47.4 | 15.1 |
| 4.50 | 48.0 | 15.3 |
| 4.75 | 48.7 | 15.5 |
| 5.00 | 49.3 | 15.7 |
| 5.25 | 49.9 | 15.9 |
| 5.50 | 50.6 | 16.1 |
| 5.75 | 51.2 | 16.3 |
| 6.00 | 51.9 | 16.5 |
| 6.25 | 52.5 | 16.7 |
| 6.50 | 53.1 | 16.9 |
| 6.75 | 53.8 | 17.1 |
| 7.00 | 54.4 | 17.3 |
| 7.25 | 55.1 | 17.5 |
| 7.50 | 55.7 | 17.7 |
| 7.75 | 56.3 | 17.9 |
| 8.00 | 57.0 | 18.1 |
| 8.25 | 57.6 | 18.3 |
| 8.50 | 58.3 | 18.5 |
| 8.75 | 58.9 | 18.8 |
| 9.00 | 59.5 | 19.0 |
| 9.25 | 60.2 | 19.2 |
| 9.50 | 60.8 | 19.4 |
| 9.75 | 61.4 | 19.6 |
| 10.00 | 62.1 | 19.8 |
| 10.25 | 62.7 | 20.0 |
| 10.50 | 63.4 | 20.2 |
| 10.75 | 64.0 | 20.4 |
| 11.00 | 64.6 | 20.6 |
| 11.25 | 65.3 | 20.8 |
| 11.50 | 65.9 | 21.0 |
| 11.75 | 66.5 | 21.2 |
| 12.00 | 67.2 | 21.4 |
| 12.25 | 67.8 | 21.6 |
| 12.50 | 68.5 | 21.8 |
| 12.75 | 69.1 | 22.0 |
| 13.00 | 69.7 | 22.2 |
Measurements are approximate. Check the individual product for available sizes, and contact us if your measurement falls between sizes.
A few things to consider
When to measure
Finger size can change with temperature and activity. Measure at room temperature and check more than once at different times of day.
Wider bands
A wide band can feel snugger than a narrow one. If possible, try a sizer with a similar width to the ring you’re choosing.
Your knuckle and fit
Your ring should sit comfortably at the base of your finger and pass over the knuckle with some resistance. If the measurements differ noticeably, ask us for help.
Resizing options
Some styles, including many eternity bands with stones all the way around, cannot be resized. Confirm your size and the ring’s resizing options before purchasing.
Need help finding your size?
Between sizes or unsure about your measurement? Get in touch and we’ll help you choose the right fit before you order.