Size conversion
What Is a 48B in Other Brands?
Bra sizes are not standardized: the same label means different things brand to brand, so your 48B is a starting point, not a fixed size. A US 48B usually needs a 48C in Victoria’s Secret, maps to a 48B in a true-to-size UK brand like Panache, and stays a 48B in Wacoal.
Your 48B in Victoria's Secret
48C
Cups run a full cup small, so size up
Your 48B in Panache
48B
True-to-size UK sizing
Your 48B in Wacoal
48B
True to size, year after year
Every brand we track
Your 48B, brand by brand
Grouped by the sizing system each brand labels its cups in. Brands we stock link to their full lineup.
US
US-sized brands
| Brand | How it runs | Your 48B → |
|---|---|---|
| ThirdLovein stock | cups run generous | 48B |
| Wacoalin stock | true to size | 48B |
| Glamorisein stock | true to size | 48B |
| SHEFITin stock | - | Adjustable XS-6Luxe sizing rather than standard band/cup; size by the brand chart. |
| b.tempt'din stock | true to size | 48B |
| Kindred Bravelyin stock | - | Uses XS-XXL nursing/maternity sizing rather than band/cup; size by the brand chart. |
| ENELLin stock | - | Uses numeric high-impact sizing (00-8) rather than band/cup; size by the brand chart. |
| Natori | cups run small | 48B |
| Bali | band runs large | 46B |
| Playtex | band runs large | 46B |
| Maidenform | true to size | 48B |
| Vanity Fair | band runs large | 48B |
| Calvin Klein | band runs small | 48B |
| Victoria's Secret | cups run small | 48C |
| Brooks | band runs small | 48B |
| Under Armour | - | Compression fit runs generous; XS-XL sizing rather than band/cup; size by the brand chart. |
| Nike | - | Generous fit; XS-XL sizing rather than band/cup; size by the brand chart. |
| Cacique | band runs large | 48B |
| Torrid | band runs large | 48B |
UK
UK-sized brands (cups run D, DD, E, F, FF, G...)
EU
EU-sized brands
| Brand | How it runs | Your 48B → |
|---|---|---|
| Chantelle | cups run small | 48B |
| Simone Perele | cups run small | 48B |
| PrimaDonna | true to size | 48B |
| Marie Jo | true to size | 48B |
| Triumph | band runs large | 48B |
| Anita | true to size | 48B |
Translations are guidance from cross-brand fit data, not a guarantee - fit also depends on breast shape and style. Cross-brand offset data v1-2026-05-28.
In stock now
Shop 48B now
Real bras we track in stock in 48B, with live prices.
Elomi
Cate Non Wired Soft Cup Bra: Latte
$69.00View →
Elomi
Cate Non Wired Soft Cup Bra: White
$69.00View →
Elomi
Cate Non Wired Soft Cup Bra: Black
$69.00View →
Glamorise
MagicLift Natural Shape Support Bra Black
$41.30View →
Glamorise
Front-Closure Zip Up Sports Bra Blue Tie-Dye
$46.00View →
Glamorise
Front-Closure Lacey T-Back WonderWire Bra Solid Black
$62.00View →
Glamorise
Front-Closure Lacey T-Back WonderWire Bra Black Plum
$62.00View →
Glamorise
Front-Closure Lacey T-Back WonderWire Bra Black
$62.00View →
48B sister sizes
Sister sizes hold the same cup volume on a different band. If the 48B cup fits but the band doesn’t, try:
Interactive
Try your own size
Not a 48B? Enter any size to see it in every brand. Your size never leaves your browser.
Brand Size Translator
Find your size across different brands
48B
Why sizes vary: Each brand uses different patterns, materials, and fit philosophies. A 34DD in Victoria's Secret fits differently than a 34DD in Panache.
ThirdLove
US
Half-cup sizing available; cups run slightly generous.
48B
Wacoal
US
True to size; consistent fit across decades.
48B
Panache
UK
UK sizing; true to size, consistent year over year.
48B
Freya
UK
UK sizing; bands run snug.
48B
Elomi
UK
UK plus-size full-bust; cups run generous.
48B
Glamorise
US
US full-figure; true to size.
48B
SHEFIT
US
Adjustable XS-6Luxe sizing rather than standard band/cup; size by the brand chart.
48B
b.tempt'd
US
Wacoal-family fit DNA; runs true to US sizing, lighter construction.
48B
Kindred Bravely
US
Uses XS-XXL nursing/maternity sizing rather than band/cup; size by the brand chart.
48B
ENELL
US
Uses numeric high-impact sizing (00-8) rather than band/cup; size by the brand chart.
48B
Natori
US
Cups run small; consider sizing up.
48B
Chantelle
EU
French sizing; cups run small.
48B
Bali
US
Bands run loose; consider sizing down.
46B
Playtex
US
Bands run large; size down in band.
46B
Maidenform
US
Generally true to size.
48B
Vanity Fair
US
Bands run slightly loose.
48B
Calvin Klein
US
Bands run slightly snug.
48B
Victoria's Secret
US
Cups run very small; size up a full cup.
48C
Fantasie
UK
UK sizing; consistent fit.
48B
Curvy Kate
UK
UK sizing; bands run firm.
48B
Gossard
UK
UK sizing; classic fit.
48B
Pour Moi
UK
UK sizing; budget-friendly.
48B
Simone Perele
EU
French luxury; cups run small.
48B
PrimaDonna
EU
Belgian luxury; true EU sizing.
48B
Marie Jo
EU
Belgian; consistent fit.
48B
Triumph
EU
German; bands slightly generous.
48B
Anita
EU
German; strong post-surgery range.
48B
Brooks
US
Compression sports style; may run snug.
48B
Under Armour
US
Compression fit runs generous; XS-XL sizing rather than band/cup; size by the brand chart.
48B
Nike
US
Generous fit; XS-XL sizing rather than band/cup; size by the brand chart.
48B
Goddess
UK
UK sizing; strong plus-size range.
48B
Cacique
US
Lane Bryant's brand; bands run generous.
48B
Torrid
US
Plus-focused; bands run large.
48B
Common questions
48B conversion questions
- What is a 48B in Victoria's Secret?
- Victoria's Secret cups run about a full cup small, so a standard US 48B usually needs a 48C there. If you already wear a 48B in Victoria's Secret, your size in a true-to-size brand is likely a cup smaller.
- Which brands keep a 48B the same?
- In true-to-size brands a US 48B stays a 48B: Wacoal, Panache, Glamorise, b.tempt'd, Maidenform, Fantasie, Gossard, Pour Moi, PrimaDonna, Marie Jo, Anita, Goddess. Fit can still vary by style, so treat the label as the starting point.
- Do UK brands size a 48B differently from US brands?
- UK brands label cups in a different sequence above D (D, DD, E, F, FF, G), so the same letters can mean different volumes. In a true-to-size UK brand like Panache, a US 48B is a 48B; the band number stays the same.
- What size replaces a 48B in brands that don't use cup sizes?
- SHEFIT, Kindred Bravely, ENELL, Under Armour, Nike size by their own charts (XS-XL or numeric) instead of band/cup, so a 48B doesn't carry over directly. Start from each brand's chart with your underbust and bust measurements.