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Family Jewellers of Birmingham FOR OVER 40 YEARS - Book Appointment | WhatsApp
Family Jewellers of Birmingham FOR OVER 40 YEARS - Book Appointment | WhatsApp
Getting a wedding ring wrong is an expensive mistake. Either it does not go on, or it spins around all day, and you spend the next few months waiting for a resize.
The good news is that measuring ring size accurately at home is straightforward once you know what actually affects the fit. This guide covers three reliable methods, a UK wedding ring size chart, the most common mistakes, and when to go to a jeweller instead.
Browse Manna Jewellers' wedding bands in Birmingham's Jewellery Quarter, available in 9ct and 18ct gold and platinum. The team can size you in person at the showroom, too.
UK ring sizes use letters from A (smallest) to Z, with half sizes available.
Always measure ring size in the evening when fingers are at their largest.
Never measure after exercise, in cold temperatures, or first thing in the morning.
If your measurement falls between two sizes, always choose the larger one.
Wider wedding bands (5mm and above) feel tighter at the same letter size. Size up by half a letter.
The average wedding ring size in the UK is L to N for women and R to T for men.
A professional jeweller's sizing gives the most accurate result, especially for wider bands.
Fingers change size throughout the day. They swell in warm weather, shrink in the cold, and are smallest first thing in the morning. A measurement taken at 7 am in January could be a full size smaller than an evening measurement in July.
Measure in the evening, at room temperature, when your hands feel comfortable and warm. Avoid measuring straight after exercise, after a long hot shower, or when your fingers feel cold. For a ring worn every day for life, that extra care at the measurement stage is worth it.
Cut a strip of thin, non-stretchy paper about 10cm long and 1cm wide. Wrap it snugly around the base of your ring finger where you would wear the ring. Mark where it overlaps. Lay it flat and measure the length in millimetres from the end to your mark. That figure is your finger circumference. Match it to the UK wedding ring size chart below. Repeat three times and take the most consistent reading.
If cutting your own strip feels a bit hit-and-miss, Manna's printable ring sizer (PDF) does the same job, with sizes already marked on it. Print it at 100% scale, no "fit to page," cut along the lines, and wrap it around your finger the same way. Read the size where it overlaps, and you have your answer without needing the chart at all.
If you are buying for someone else without them knowing, borrow a ring they already wear on their ring finger. Place it on a flat surface and measure the inside diameter with a millimetre ruler. Match that diameter to the chart below. If you cannot borrow the ring for long, trace the inside of the ring onto paper and take it to a jeweller.
You can buy one online for a couple of pounds. It looks like a thin plastic cable tie with UK ring size letters marked along it and a small buckle at one end.
Thread it around the base of your ring finger, feed the pointed end through the buckle, and pull until it sits snugly without pinching. Before reading the size, check that it can still slide over your knuckle. If it cannot, the ring will not go on, so loosen it slightly until it can. Read the UK letter where the strip meets the buckle. That is your size.
A jeweller uses a set of calibrated ring sizers for every UK letter size. The process takes a few minutes and yields the most precise result, particularly for wider bands, where half a size can make a real difference in daily comfort.
At Manna Jewellers, ring sizing is available in person in the Jewellery Quarter showroom. You can also download the free Manna ring size guide to measure at home before your visit. Book an appointment and try the actual band style in your chosen width before ordering.
|
UK size |
Circumference (mm) |
Diameter (mm) |
Typical fit |
|
L |
49.3 |
15.7 |
Women's average (lower) |
|
M |
50.6 |
16.1 |
Women's average |
|
N |
52.0 |
16.6 |
Women's average (upper) |
|
P |
54.8 |
17.4 |
Larger women's / smaller men's |
|
R |
57.8 |
18.4 |
Men's average (lower) |
|
S |
59.1 |
18.8 |
Men's average |
|
T |
60.6 |
19.3 |
Men's average (upper) |
|
V |
63.2 |
20.1 |
Larger men's |
The average wedding ring size in the UK is L to N for women and R to T for men. These are starting points only. Every hand is different, and the right fit also depends on the band width you choose.
It does, and this is the detail most people miss.
A ring measured as a UK M using a standard narrow sizer will feel noticeably tighter in a 5mm or 6mm wedding band. The wider the band, the more surface area it has to grip the finger. As a guide: up to 4mm, use your standard size. From 5mm to 6mm wide, size up by half a UK letter. At 7mm and above, size up by a full letter.
Expert tip: Before visiting a jeweller, Manna Jewellers offersa free downloadable ring sizer you can print and use at home. Measuring with a printed sizer gives a more reliable result than the paper strip method alone, particularly if you are buying for someone else and need to match an existing ring. Download it, take your measurement, then bring both the figure and the ring to the showroom for a professional confirmation.
Buying a wedding ring as a surprise means you cannot measure it directly. These approaches work, in order of reliability:
Borrow a ring they wear on the left ring finger and measure the inside diameter, or take it to a jeweller for sizing.
Trace the inside of the ring onto paper and bring it to Manna Jewellers in Birmingham.
Ask a close friend or family member who might know their size.
Use the average wedding ring size as a starting point and choose a jeweller with a clear resizing policy.
Most plain wedding bands can be resized by one to two UK letter sizes. Full eternity rings and bands set with stones all the way round are much harder to resize, so accuracy matters more for those styles.
Measuring in the morning gives a reading that runs too small. Measuring after exercise gives one that runs too large. Using stretchy material like elastic or wool compresses the reading. Measuring only once risks a rogue result. Taking three readings and using the most consistent one removes that risk.
The other mistake is ignoring band width. A size measured with a narrow sizer is not the same as the size you need for a 6mm-wide wedding band. This is one of the most common reasons for wedding ring resizes.
Manna Jewellers is a family jewellery business with over 40 years in Birmingham's Jewellery Quarter. Wedding bands are available in 9ct and 18ct yellow, white, and rose gold, as well as platinum, across all widths and profiles. Every ring is hand-finished by the team in the Jewellery Quarter workshop. Professional ring sizing is available in-store. Book an appointment to try on your chosen width in person and get accurately sized before ordering.
Ring size guide: download Manna's free ring sizer. Manna's own ring size guide includes a free printable ring sizer and step-by-step instructions for measuring at home or matching an existing ring. The natural companion to this blog is a physical tool for anyone who wants to work with it before visiting the showroom.
Wedding ring band widths: how to choose between 2mm, 3mm, 4mm and 5mm: band width directly affects which ring size you need. This guide covers what each width looks like on different hand sizes, how to match a band to an engagement ring, and how sizing changes as the width increases.
How to wear the wedding and engagement rings: order, tradition, and personal choice. Once you have the right size, this guide covers the correct wearing order, the practical ceremony-day tip, and how ring design affects how both rings sit on the finger.
Wrap a thin strip of non-stretchy paper around the base of your ring finger, mark where it overlaps, and measure the length in millimetres. Match that circumference to a UK ring size chart to find your letter size. Measure in the evening for the most accurate reading. If you land between two sizes, choose the larger. For a wider wedding band (5mm and above), size up by half a UK letter from your standard measurement.
The average wedding ring size for women in the UK falls between L and N, with M being the most common. This corresponds to a finger circumference of roughly 49 to 52mm. Averages are a useful starting point when buying as a surprise, but fingers vary significantly. A professional sizing at a jeweller is always more reliable than relying on averages alone.
The average wedding ring size for men in the UK falls between R and T, with S and T being the most common. This corresponds to a circumference of roughly 59-61mm. Men's ring sizes vary more widely than women's. If buying as a surprise, measuring an existing ring they wear on their right or left ring finger gives the most reliable result.
It does. Wider bands grip more of the finger surface and feel tighter at the same internal diameter. For bands up to 4mm, your standard ring size is correct. For 5mm to 6mm bands, size up by half a UK letter. For 7mm and wider, size up by a full letter. This applies to both men's and women's wedding rings.
Most plain wedding bands in yellow, white, or rose gold can be resized by one to two UK letter sizes without issue. Full eternity rings and bands with stones set all the way around the shank are difficult to resize and may need to be remade in the correct size. Always check the jeweller's resizing policy before buying, particularly for wider or stone-set styles.
