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So you have found the perfect diamond ring, but how do you find your ring size? Whether you are buying an engagement ring for your partner or a wedding ring for yourself, our ring size guide UK provides the best tips on how to measure ring size at home.
Our UK ring size conversion chart is here to help you determine your ring size at home. Simply measure the circumference of the finger you plan to wear the ring on using a tape measure. Then, refer to the conversion chart to find your ring size and convert it accordingly.
| Ring Size | Circumference (mm) |
|---|---|
| A | 37.8mm |
| B | 39.1mm |
| C | 40.4mm |
| D | 41.7mm |
| E | 42.9mm |
| F | 44.2mm |
| G | 45.5mm |
| H | 46.8mm |
| I | 48.0mm |
| J | 48.7mm |
| K | 50.0mm |
| L | 51.2mm |
| M | 52.5mm |
| Ring Size | Circumference (mm) |
|---|---|
| N | 53.8mm |
| O | 55.1mm |
| P | 56.3mm |
| Q | 57.6mm |
| R | 58.9mm |
| S | 60.2mm |
| T | 61.4mm |
| U | 62.7mm |
| V | 64.0mm |
| W | 65.3mm |
| X | 66.6mm |
| Y | 67.8mm |
| Z | 68.5mm |
Buying an engagement ring or a surprise gift for your partner? Here are our top tips on how to determine the perfect ring size.
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Consult a trusted friend or family member. A close friend or family member may already know your partner's ring size or might be able to discreetly find out for you. They could subtly ask your partner or offer to help without raising any suspicion. |
Use an existing ring. If your partner wears a ring on the same finger, you can use it as a guide. Take the ring to a jeweller for an accurate measurement or, if you prefer, use our ring size guide to measure it yourself at home for a precise fit. |
Measure their finger while they sleep. This method requires a bit more subtlety. While your partner is asleep, use a piece of string to gently wrap around their ring finger and tie a small knot. Afterward, measure the length of the string against our ring size guide for an accurate reading. |
To ensure an accurate fit, consider these simple tips when measuring your ring size. Factors like the time of day and temperature can affect your finger size, so keep that in mind for the best results.
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TemperatureHot temperatures can cause the skin to expand, while cold temperatures make it contract. It's wise to keep this in mind when taking measurements. |
Weight loss or gainChanges in weight can affect how tight or loose a ring feels. It's important to consider this, as it can impact the comfort and fit. |
PregnancyMuch like weight fluctuations, pregnancy can influence ring size. Remember that fingers tend to swell during this period.. |
ComfortTake into account how easily the ring fits on your finger, allowing for any swelling or shrinking of the finger due to temperature changes. |
TimeThe ideal time to measure your ring size is in the evening, as fingers tend to be slightly larger at this time compared to the morning. |
If your ring doesn’t fit perfectly on the first try, there’s no need to worry. We offer a free resizing service within 30 days, allowing you to adjust the size by up to two sizes, either larger or smaller.
When purchasing an engagement ring, some people opt for the average ring size and have it resized later. Here’s how the average UK ring sizes differ for men and women.
Average UK Ring Sizes for WomenWomen's ring sizes typically range from K to N, as indicated in the women's ring size guide.
Average UK Ring Sizes for MenMen's ring sizes generally fall between S and T, according to the men's ring size guide, with size T being the most common. |
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Our friendly Customer Service Team is here to assist you. If you require further guidance, please call us on +44 (0)207 404 0146 to speak with one of our team members.
