Size Guide
Method 1: Measure an existing ring

- Take a ring that properly fits the intended finger.
- Measure the internal diameter of the ring in millimetres.
- Use the chart below to determine your ring size.
Internal diameter (mm) |
Ring size | Internal diamter (mm) | Ring size |
14.1 | 3 | 18.5 | 8.5 |
14.5 | 3.5 | 19 | 9 |
14.9 | 4 | 19.4 | 9.5 |
15.3 | 4.5 | 19.8 | 10 |
15.7 | 5 | 20.2 | 10.5 |
16.1 | 5.5 | 20.6 | 11 |
16.5 | 6 | 21 | 11.5 |
16.9 | 6.5 | 21.4 | 12 |
17.3 | 7 | 21.8 | 12.5 |
17.7 | 7.5 | 22.2 | 13 |
18.1 | 8 | 22.6 | 13.5 |
Method 2: Measure you finger
- Wrap a strip of paper or a non-stretchy string around at the base of the finger where you'd like the ring to be. If you use a strip of paper, make sure that it is not too wide.
- If you are using paper, make sure the strip is pulled snugly to your finger, the tighter the better, to find your best fit.
- Mark the spot where the paper or the string meets and measure the distance with a ruler in millimetres.
- Use the size chart below to determine your ring size.
Circumference (mm) | 44.1 | 45.4 | 46.7 | 48 | 49.2 | 50.5 | 51.8 | 53.1 |
Ring size | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 |
Circumference (mm) | 54.3 | 55.6 | 56.9 | 58.2 | 59.4 | 60.7 | 62 | 63.3 |
Ring size | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 |
Circumference (mm) | 64.5 | 65.8 | 67.1 | 68.3 | 69.6 | 71.0 | ||
Ring size | 11 | 11.5 | 12 | 12.5 | 13 | 13.5 |
Circumference (mm) | Ring size | Circumference (mm) | Ring size |
44.1 | 3 | 58.2 | 8.5 |
45.4 | 3.5 | 59.4 | 9 |
46.7 | 4 | 60.7 | 9.5 |
48 | 4.5 | 62 | 10 |
49.2 | 5 | 63.3 | 10.5 |
50.5 | 5.5 | 64.5 | 11 |
51.8 | 6 | 65.8 | 11.5 |
53.1 | 6.5 | 67.1 | 12 |
54.3 | 7 | 68.3 | 12.5 |
55.6 | 7.5 | 69.6 | 13 |
56.9 | 8 | 71.0 | 13.5 |
Tips
- Measure your fingers at the end of the day when they are at their largest
- Cold weather can shrink your fingers up to half a size, so make sure they are warm
- Your left and right hands may be different sizes so be sure to measure the finger the ring will be worn on most
- For the most accuracy, have someone help you measure.
- Double check sizing for accuracy
- If you measurement falls between two sizes, order the larger size. For example, if you are between 8.5 and 9, size 9 will be your best fit.
Need help? Feel free to contact us at:
info@jewelsandco.ca