Question 1

Is a 48K the same in every brand?

Accepted Answer

No — a 48K isn't identical across brands, because brands use different sizing systems and cup depths. Here's how a standard US 48K translates in the brands we track: ThirdLove 48K, Wacoal 48K, Panache 48H, Freya 48H, Elomi 48H, Glamorise 48K, SHEFIT 48K, b.tempt'd 48K, Kindred Bravely 48K, ENELL 48K, Fantasie 48H.

Question 2

What are the sister sizes for 48K?

Accepted Answer

48K's sister sizes — same cup volume, different band — are 46L and 50J. Try a sister size if the band feels too tight or loose but the cup still fits.

48K Bras

Your 48K across brands

MagicLift Front-Closure Posture Back Bra Blue

MagicLift Front-Closure Posture Back Bra White

MagicLift Front-Closure Posture Back Bra Cafe

MagicLift Front-Closure Posture Back Bra Black

MagicLift Active Support Bra Gray Heather

MagicLift Active Support Bra Cafe

MagicLift Active Support Bra White

MagicLift Active Support Bra Black

Brand	How it runs	Your 48K →
ThirdLove	cups run generous	48K
Wacoal	true to size	48K
Panache	true to size	48H
Freya	band runs small	48H
Elomi	cups run generous	48H
Glamorise	true to size	48K
SHEFIT	true to size	48K
b.tempt'd	true to size	48K
Kindred Bravely	true to size	48K
ENELL	true to size	48K
Fantasie	true to size	48H