If you’re a 48 bra band size, and occasionally find that a new bra from a different brand doesn’t fit you quite right, you may need to try on a different size. This is where sister sizes come in. We’ll tell you which sizes are similar to your current size, guiding you towards finding the right, alternative bra size. Keep reading to discover our sister size chart for a 48 band size.
What Are Sister Bra Sizes?
Sister sizes are the bra sizes that surround your current size. It’s good to know what your sister sizes are, so you can try these on if a new bra doesn’t give you the level of support and comfort you’re used to.
There are many reasons a new bra might not fit. This could be due to trying a different brand, a different style of bra, or it could even be down to the manufacturer. If you do find that a new bra doesn’t fit as you’d expect it to, you may need to try on a different size - a sister size.
Read more about sister sizes in our blog.
Size Chart: Sister Sizes For 48 Bra Band Size Based On UK Sizing
This is our sister size chart for a 48 band size. Find your current bra size in the first column, and discover what sister sizes we’d recommend for sizing upwards or downwards. Then click on your chosen bra size in the chart below to view the full range of bras in this bra size.
| Sister Size Down | Current Bra Size | Sister Size Up |
| 46A | 48AA | |
| 46B | 48A | 50AA |
| 46C | 48B | 50A |
| 46D | 48C | 50B |
| 46DD | 48D | 50C |
| 46E | 48DD | 50D |
| 46F | 48E | 50DD |
| 46FF | 48F | 50E |
| 46G | 48FF | 50F |
| 46GG | 48G | 50FF |
| 46H | 48GG | 50G |
| 46HH | 48H | 50GG |
| 46J | 48HH | 50H |
| 46JJ | 48J | 50HH |
| 46K | 48JJ | 50J |
| 46KK | 48K | 50JJ |
| 46L | 48KK | 50K |
How to Find Your Sister Bra Size
When you’ve located your current bra size on the chart, you’ll be able to read across and discover your sister sizes. There is an option to size up, if the bra you’re trying on feels too small, and an option to size down, if the bra you’re trying on feels too big.
If you go up in band size, you may need to go down in cup size. If you go down in band size, you may need to choose a higher cup size. This is just a guide - please note that sister sizing can be quite complicated as you may need to adjust both the cup size and the band size to get the best fit.
Sister sizes can be other sizes that surround the initial size. Take a look at our example chart based on UK sizing.
If you would like to chat to our friendly team of bra specialists for more advice on sister sizes and finding a comfortable and well-fitting bra, please don’t hesitate to call us on 01439 798388.
Bras In A Back Size 48
A best selling non wired bra in a back size 48 is the Rosa Faia Twin Non Wired Bra - Product Code 5493, a popular choice with customers, that Sally recommends as her new favorite non wired bra. This wireless bra has a slight stretch on the neck edge for a forgiving fit and is made from extremely soft comfortable fabric for confort all day. The Rosa Faia Twin Non Wired bra by Anita comes in 6 continuity colours - white, champagne, skintone, desert, rosewood and black in cup sizes A to F and back sizes 32 to 48. Anita's best selling non wired feel good bra, they claim every woman should have one in her underwear drawer! Take a look today!
Why We Love This Rosa Faia Twin Non Wired Bra
The features of this bra that makes this an excellent everyday bra include....
- A comfortable non wired feel good bra for all day comfort.
- Double layered for added comfort and a smooth look.
- Made from an extremely comfortable smooth silky, microfibre fabric.
- A slight stretch on the neck edge for a forgiving fit.
- Adjustable straps for ease of fit.
- Wide comfort straps to add extra comfort to your shoulders!
- E cup and above have reinforce straps for added support.
- This is a medium support bra.
- A seamless bra for a smooth appearance.
- A full cup bra to support the breasts.
Related Searches: 48B Bra Sizes | 48C Bra Sizes | 48D Bra Sizes | 48DD Bra Sizes | 48F Bra Sizes | Underwired Bras | Non Wired Bras
Find Comfortable and Supportive Bras from AmpleBosom
Here at AmpleBosom, we have a wide variety of bras to choose from. Browse different styles from the world’s leading brands, and filter by size to see which bras we have available in your size and your sister sizes.
We have an extensive range of over 250 bras in our collection, stocked in band sizes 28 to 58, and cup sizes AA to N. We guarantee you’ll find something to suit your body shape, lifestyle, and budget.
If you think it might be time for a new bra and fancy trying a new style or brand and not sure what size it is you need to try. Then don’t hesitate to contact us and the experts at Amplebosom can help advise on the size.
Bra Measuring and Fitting Advice
For additional advice and information on finding a well-fitting bra, visit our blog posts on:
- Bra Measuring Guide - advice on measuring your own bra size at home
- Bra Fitting Guide - hints and tips to make sure your bra fits correctly
- Bra Size Guide - guidance on sizing for the different brands we stock
- Bra Fitting Appointments - book a fitting appointment with us in North Yorkshire
Frequently Asked Bra Fitting & Sizing Questions:
- What Are Sister Bra Sizes?
- How Do I Measure My Bra Size At Home?
- How Do I Find A Comfortable Bra?
- What Are The Best Bra Brands For Big Busts?
- How Do I Find The Perfect Fitting Bra?
- How Do I Know If I’m Wearing The Right Size Bra?
- What Should I Expect At A Bra Fitting?
- When should I have a bra fitted?
- My breasts are not the same size. What should I do?
- What is the difference between UK, US and European bra sizes?
Sister Bra Sizes from AmpleBosom
We have a fantastic team of bra specialists, led by AmpleBosom founder Sally, who are here to answer all your questions and help you find the perfect bra. We can make specific recommendations based on your measurements, so you can buy in confidence. Call us on 01439 798388 or get in touch by dropping us an email.
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Blogpost last edited by Cesca 24/10/2024 and Sara 12/06/2025.