Ring Size Guide
We're here to make finding your ideal ring size as simple as possible. We recommend choosing a ring size that's slightly loose so you can remove with ease. Fingers can change size by up to half a size in a day due to temperature, weather, and activity like exercise.
1. Order a ring sizer from our website
To measure your ring size using our ring sizer, simply slide the ring sizer onto your finger and adjust until it fits comfortably. Use the magnification dial to easily read the correct size. Make sure the size is large enough to slide over your knuckle without being too tight, ensuring a comfortable fit. You can purchase a ring sizer here.
2. Measure using an existing ring
One of the simplest methods to determine your ring size is by measuring a ring you already own:
- Measure the diameter of the ring using a ruler or tape measure.
- Compare this measurement with our international ring size chart below. In the photo example, the diameter is 2cm / 20mm and the nearest ring size would be US (10) UK (U)

3. Visit a jewellers
Take a visit to a local jewellers and get your finger professionally sized. It’s quick, easy, and free. If they provide a letter as opposed to a number, simply check the guide below to find the right one.
Find your ring size
We list ring sizes on the website using international measurements. The following guide outlines how this compares to the UK letter framework.
USA | Ring Size (UK) | Diameter (mm) | Circumference (mm) |
6 | M | 16.5 | 52 |
6.5 | N | 16.9 | 53 |
7 | O | 17.3 | 54 |
7.5 | P | 17.7 | 55 |
8 | Q | 18 | 57 |
8.5 | R | 18.6 | 58 |
9 | S | 19 | 60 |
9.5 | T | 19.5 | 61 |
10 | U | 20 | 63 |
10.5 | V | 20.3 | 64 |
11 | W | 20.7 | 65 |
11.5 | X | 21 | 66 |
12 | Y | 21.5 | 67 |
12.5 | Z | 21.89 | 68 |
13 | Z+1 | 22.2 | 70 |
13.5 | Z+2 | 22.6 | 71 |
14 | Z+3 | 23 | 72 |
Contact the Wolf&Bond team
If you're still struggling with finding the right size, get in touch with the team and we'll be happy to help.
Exchanges
We want you to be 100% satisfied with the fit of your ring. If you choose the wrong size, simply let us know and we're happy to exchange to the correct size.
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