Ring Size Guide

How to find your ring size

When planning a surprise proposal or browsing for your own wedding ring, getting the ring size right is important to ensure the ring stays comfortable and secure on your finger. The most accurate method of finding the ring size is to book an appointment with our experts to have your finger measured.

That said, we understand that it isn’t always possible or practical - especially if you’re planning a surprise proposal for your partner!

We have put together our top tips and answers to the most common questions to help you find the best solution to finding the right ring size for your partner, or for yourself, and will take you through the average ring sizes for both men and women when it comes to engagement ring sizes and wedding band sizes. We’ll even reveal the most effective way our experts estimate ring sizes for those unable to take an accurate measurement.

The average ring sizes in the UK

The average ring size for engagement rings and wedding bands does vary slightly from country to county. A person’s ring size typically depends on their build and height.

We are all unique and, therefore, come in unique shapes and sizes, and our ring sizes are no different. There’s no fail-safe way to predict a ring size, but by understanding the average ring size in the UK, you may learn where your partner (or you) falls in the sizing chart.

engagement ring sketch

The average UK ring sizes

So, what is the average ring size for women? The average engagement ring size in the UK is M. This would also apply for the wedding ring if it is worn on the same finger. So, the average wedding ring size for women is also M.

In some cultures, either the engagement ring or wedding ring is worn on the right hand. If this is the case with you or your partner, the finger size may be slightly different. Whether it is slightly larger or smaller will depend on which hand is their dominant hand. In most cases, we find that ring size on the dominant hand is one whole size bigger than the ring size on the other hand.

As an example, say if you or your partner is the average engagement ring size of M and you or they will wear their wedding ring on their right hand. If they are right-handed, the ring size of the right hand will be N.

What is the average ring size for a man? The UK’s average men’s ring size is T. In general, we find men wear their wedding band a little loose, as their hands tend to expand with heat a bit more so than with women.

Which finger are engagement rings and wedding bands worn on?

In most cultures, engagement rings and wedding rings are worn on the ‘ring finger’ - the finger next to your pinky finger - on your left hand. As mentioned before, in some cultures and aside from this tradition, either the engagement ring or wedding ring is worn on the right hand also. We have also found that some even choose to swap their engagement ring to their right hand, leaving their wedding ring on the left.

What if I have no clue about my partner’s finger size for their engagement ring

People do not know their own finger size, let alone their partner’s ring size - so you’re not alone. When creating a surprise engagement ring for your partner, we recommend consulting with a trusted jeweller. At Savvy+Sand, our experts have a knack for estimating the ring sizes of people they have never met - which isn’t down to just guessing!

We work with thousands of clients, meeting them post-proposal, and know the ins and outs of ring sizing. We can often estimate the ring size based on a photo of your partner’s hand, as well as their height and dress size. Whilst these methods get accurate results more often than not, it is not uncommon for the engagement ring to be resized following the big moment. It is unlikely that the engagement ring will need a large alteration - a half to one size up or down is usually the case.

What if i get the size wrong?

If you or your partner’s Savvy+Sand ring doesn’t fit as you would like it to, we will resize your ring free of charge. As proposals are usually a surprise and we don’t get to meet your partner until after the big moment, we’ll invite you both back to the boutique to be accurately measured to ensure a comfortable fit.

How should the right ring fit feel like?

Your ring should slip comfortably onto your finger, with slight resistance when going over your knuckle. The ring should twist round your finger when you move it, however, shouldn’t sway over to one side (although this can happen with engagement rings that have large center stones, even if sized correctly).

How much does it cost to resize a ring?

The first resize is always free to all our clients. Subsequent resizing starts from around £75.

can rings be resized to any size?

Typically, rings can be resized up or down by 3 ring sizes. Any more than this, or when the ring is intricately detailed like our Art Deco or Verragio engagement rings, the ring would have to be remade.

does resizing damage a ring?

There is a limit to the number of times you should resize your ring. If possible, we advise resizing no more than three sizes throughout the lifetime of the ring. If a ring is sized any more than this, it is likely that the ring will become less durable.

My ring size feels fine, but my ring twists around - what can I do?

You may find that your ring twists around depending on the climate - in warmer weather you ring will feel snugger and in colder weather, your ring will feel a little loose. Resizing is not always the best option and in such cases, we may advise adding small additions to the inside of your ring (called ‘speed bumps’) that can help create a more comfortable fit that ensures your ring won’t twist around.

Ring size conversion chart - UK, US, EU and MM

Ring sizes are measured differently around the world. The UK ring size system uses letters, from A-Z, with ¼ increments. Use our ring size convertor below to find your size.

Ring Size (UK) Ring Size (US) Ring Size (EU)  Inside Diameter (mm)
E 2 1/2 42 3/4 13.7
E 1/2 2 3/4 42 3/4 13.9
F 2 7/8 44 14.1
F 1/2 3 44 5/8 14.3
G 3 1/4 45 1/4 14.5
G 1/2 3 1/2 45 7/8 14.7
H 3 3/4 46 1/2 14.9
H 1/2 4 47 1/8 15.1
I 4 1/4 47 3/4 15.2
I 1/2 4 1/2 48 15.4
J 4 3/4 48 3/8 15.6
J 1/2 5 49 15.8
K 5 1/4 49 5/8 16
K 1/2 5 1/2 50 1/4 16.1
L 5 3/4 50 7/8 16.4
L 1/2 6 51 1/2 16.6
M 6 1/4 52 1/8 16.8
M 1/2 6 1/2 52 3/4 17
N 6 3/4 53 3/8 17.2
N 1/2 7 53 1/4 17.4
O 7 1/4 54 17.6
O 1/2 7 1/2 54 5/8 17.8
P 7 3/4 55 1/4 18
P 1/2 8 55 7/8 18.2
Q 8 1/4 56 1/2 18.4
Q 1/2 8 1/2 57 1/8 18.6
R 8 3/4 57 3/4 18.8
R 1/2 9 58 3/8 19
S 9 1/4 59 19.2
S 1/2 9 1/2 59 5/8 19.4
T 9 3/4 60 7/8 19.5
T 1/2 10 61 1/2 19.7
U 10 1/4 62 1/8 19.9

 

our tips for getting your ring size right

If it’s possible, have your ring size measured by a trusted jeweller - they will likely have you try on a few sample sizes to see what you are comfortable with and will use a professional sizing stick. We offer this service free of charge, book an appointment to arrange your visit to our boutique.


Your hands may swell when warm and are smaller than usual when cold. If you are particularly warm or colder than usual, get them to ambient temperature by running them under lukewarm water.


It is important to determine whether your size is ‘leading edge’ or ‘center’ - at Savvy+Sand, we tend to use the ‘center’ measurement, as this accounts for any ring width.


We’re always on hand to give you the best advice on the right ring size for you or your partner. We regularly predict ring sizes for engagement rings and wedding bands all the time and will happily resize if we don’t get it perfect for you.

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