Find the perfect size
We are here to help you find the perfect ring size.
We recommend choosing a slightly loose fit so the ring can be removed easily.
Finger size can fluctuate by up to half a size throughout the day due to temperature, weather, or physical activity.
Please note that wide rings (such as 8mm models) fit more snugly than narrower rings (such as 4mm ones); we therefore recommend choosing half a size larger.
1. Print your Ring sizer
Print out your ring sizer.
Print it at 100% scale on an A4 sheet, cut it out, and wrap it around your finger to get an accurate measurement in just a few minutes.
2. Measure using an existing ring
One of the simplest methods to determine your ring size is by measuring a ring you already own, however this can be less accurate than option 1:
- 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) |
|---|---|---|---|
| 5 | K | 15.7 | 49.3 |
| 5.5 | L | 16.1 | 50.6 |
| 6 | M | 16.5 | 51.8 |
| 6.5 | N | 16.9 | 53.1 |
| 7 | O | 17.4 | 54.1 |
| 7.5 | P | 17.7 | 55.6 |
| 8 | Q | 18.2 | 57.2 |
| 8.5 | R | 18.5 | 58.1 |
| 9 | S | 19 | 59.7 |
| 9.5 | T | 19.4 | 60,9 |
Contact the Jackvow 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.