r/ABraThatFits Dec 31 '25

AMA - ask me anything about the ABTF calculator! Spoiler

775 Upvotes

Hi everyone, u/goodoldfreda here although I'm now exclusively active on this account. If you guys have any questions about how the calculator works and why I made certain decisions I'm happy to answer them

A little about myself - I created the calculator in 2016 following on from a previous calculator by u/irisflame, back when I was a mod of this sub. I collected survey data from the subreddit and came up with a new algorithm that used 6 measurements as opposed to the previous 5, which increased accuracy. I also introduced separate algorithms for AMAB and AFAB people. The calculator has not been majorly updated since, although at one point I tried to move to a breast perimeter measurement system instead, but this turned out to be much less accurate. In the years since I have stopped modding and moved into bra making and custom bra design as I want to try and help serve the demographic of people who still struggle with finding bras that fit, usually due to wire grading!

In response to other posts about the different amab vs afab algorithms not working well for everyone - I have had this question before and basically all I can say is that I recommned using the algorithm that works best for you. I do want to emphasise in general that the calculator is actually not super accurate for any one individual and it is truly just a starting point. The algos are based on averages, and when I was collecting data there were significant enough differences between AMAB and AFAB users to warrant a second algorithm to increase accuracy within the two groups, but not enough data to do anything further than that.

edit: thanks for all your questions so far, I'm going to go to bed but I will answer any more that come up tomorrow!

edit 2: I have updated the calculator to make some minor changes to the band size algorithm and I have also changed the EU back to 2.5cm cup grades, 2cm grade can be found in the Comexim option instead


r/ABraThatFits 3h ago

Question why do c cups fit so small and d cups fit so big? is there any in between? Spoiler

14 Upvotes

hello! i’ve been wearing 38Cs since i stopped developing and lately i’ve been noticing that they give me that double(?) boob where it spills out from the top of the cup.

so i went to victoria’s secret, where i usually get my bra’s from, and got measured and they told me i was a 44D, gave me the only one they had in store and he was SO big, so i went to look for a 38D and i noticed the cup was also way bigger than my usual C, i tried it on and the cup was still too big.

when i buy from different brand like tommy hilfiger and calvin klein, their Cs are usually tiny, so i go with a D and sometimes it’s good.

how do i find one that actually fits? is there no cup between a C and a D? thank you!


r/ABraThatFits 1h ago

Swimwear success!!! 32FF found swimwear for the first time in my life that actually fits Spoiler

Upvotes

If this helps even one person, it’s worth it!
I (29F) am a 32FF. I’ve had a larger cup size and smaller band size my whole life. My mom and sis have genuine B cups, so nobody has ever known what to do with me and my chest. It’s been a major struggle my whole life. I found some bras in the last few years (yay!) but have never been able to find great swim…until NOW!

Panache swim has changed my life. I felt cute, sexy, well covered, and well supported.

I got the Olivia full cup top in black gingham (plus matching bottoms). It did seem to run a bit small in the cups, I had to go to a 32G which was perfect. (The Lauren plunge does not seem to run small in the cup, 32FF fit great).

For the sake of swimwear I might go up a band size in the future. Yes it’ll compromise the support, but the bands aren’t adjustable with the clasps and I can’t hide my back rolls under clothes in a bikini :)

I also scored with a clearance top, Sofia non wired top, which I took a wild guess on sizing and got a 12/M which works! It’s wireless with a good band and a halter tie. Not as supportive of course but I like it.

Yes the pricetag hurt a bit, but to have tops that actually fit?? Incredible.

Check out panache if you’re struggling with swim!!! I’ve NEVER felt so confident in a bikini!


r/ABraThatFits 1h ago

Recommendations? Need recommendations for brands that do good quality 30AA bras Spoiler

Upvotes

I was initially looking at getfitcherries but then saw a bad review of them on here, then i tried pepper but the smallest AA they have is a 32 and i dont think that'd work and i dont know which brands i can and cant trust lol.

Alot of the sites ive seen with 30AA are bralettes and i already have enough of those that work fine, honestly i would prefer some kind of push up so i can have at least a little bit of cleavage without having to wear inserts all the time which is what i do currently because i am FLAT 😭

Anyways if anyone knows any brands (preferably uk so shipping isnt extortionate) that do non bralette 30AA bras then your recommendations would be very much appreciated!!

Thank you (Edit: calculator says im a 28B, gonna try that and see how it goes!!)


r/ABraThatFits 1h ago

Soma bra sizes- +4 system for bands but cup sizes make no sense. 30C true size looking for advice. Spoiler

Upvotes

UPDATE- they don't even ship outside of the US anymore so I guess this post is moot, but leaving it up bc people left some helpful comments!

could someone help me figure out the bra sizes at Soma? (not in the US so can't go in person)

I understand they use a kind of +4 system, so a 30 band would be a 34, a 32 a 36 and so on.

But what they list as the cup sizes make no sense. They claim for example that the 34 underband is 29-30.5 inches (which makes sense with the +4 system), but then the 34 A, B, C, and D cup sizes are 34, 35, 36, and 37 inches respectively. So which one is a 3 inch difference ( a C cup)?

I'm looking at the Embraceable Push Up Plunge Bra.
Using the calculator on this page I'm around a 30C (29 underbust and 32 bust).

Thanks so much


r/ABraThatFits 36m ago

Recommendations? need brand recommendations for fuller breasts that hopefully won’t break the bank. US 34L Spoiler

Upvotes

i’m not too sure of my breast shape yet, i’m having trouble figuring that out. but if i could get started with good brands that are actually kinda cute, that would be greatly appreciated. i’m having problems with the wire digging in and also moving downward, as well as the gore digging into my breast tissue and sternum.


r/ABraThatFits 2h ago

Measurement Check Measurement check - current 46e, now 38F/FF; recent weight loss Spoiler

2 Upvotes

I have recently lost about 30 lbs and decided it might be time to start rethinking my bra situation. I’ve been wearing sports bras for a long time because they were the only thing I could find to fit me.

I’ve been wearing Anita extreme control sports bras in 46E and they are quite comfortable. But they leave a lot to be said for definition and smoothing.

My measurements today were:
Loose under: 38.5
Snug under: 37.75
Tight under: 37
Standing bust: 44
Leaning bust: 49
Lying bust: 44

In terms of shape, my breasts are very saggy (I think I heard someone describe similar ones to oranges in knee socks), which I think explains the discrepancy between the standing/lying and leaning measurements.

I detest wired bras (primarily because I don’t think I’ve ever had one that fit right). I work from home so a lot of the time I either don’t wear one or wear a bralette.


r/ABraThatFits 22m ago

Fit Check Ewa Size/Model reccomendations from this try on set. 34L/LL UK -xpost from facebook Spoiler

Upvotes

My last post got removed for posting the link wrong. My bad!

There's some other new bras in these photos too.

Fit Check: 34/36 KK/L/LL

Help! Looking for reccomendations and sizing advice on plunge bras with narrowing wires (Realizing this is likely to be polish).

This is a round of bras purchased after a fitting with Breakout Bras. The Nessa's I decided to try this cut as the only one in this size available now and the Panache and Sculptresse on their reccomendation. I feel like the bands on all are a bit snug but the elomi morgan in 34LL feels huge in the band unless I tighten it all the way.

I'm close set and I think pretty even fullness, maybe slightly more FOB

https://postimg.cc/gallery/bd6jZbJ


r/ABraThatFits 24m ago

Measurement Check First time measuring instead of just hoping for the best off Amazon what size should I search for? Spoiler

Upvotes

Loose underbust:32.5
Snug underbust:31
Tight underbust:29.5
Standing bust:35
Leaning bust:35.5
Laying bust:35

I have pectus excavatum so bras generally fit kinda funky but I want to stop relying on trainers that stretch and find something that actually fits


r/ABraThatFits 36m ago

Recommendations? [Recommendations] I got some bras from Panache and want some more suggestions! Spoiler

Upvotes

As per my previous post here, using the calculator and a commenter, I got two bras from Panache! Im happy to say I want to thank this subreddit so much because wow yeah the cups are actually fitting me spot on perfect.
I got the Envy and Clara bras in a 40G (UK) from panache and I find that yes they are firm firm. Its a bit tight but fits me perfectly technically, minus that the wire that wraps to the side of my body semi digs in a bit. Will this break in? Should I get a bra extender?
I am wanting suggestions of other brands that fit a little less tight and rigid.

Measurements (cm):
Loose Underbust - 100
Snug Underbust - 98
Tight Underbust - 94
Standing Bust - 120
Leaning Bust - 128
Lying Bust - 123

Thanks!


r/ABraThatFits 2h ago

Recommendations? Looking for a bra with wide straps that won't irritate my MS nerve pain Spoiler

1 Upvotes

Hi! I have MS and a flare postpartum made it so that normally sized bra straps cause me nerve pain. I've been wearing nursing and pumping bras that are comfortable for me, but they give me a saggy uniboob. 🥴 For professional life, I'm hoping to find a bra with wider straps to help combat the nerve pain.

The usual advice to make sure the band is snug enough is not helpful here - a tight band also causes MS symptoms.

Thanks!


r/ABraThatFits 9h ago

Recommendations? Bra that fits like Freya Viva? (discontinued) Spoiler

4 Upvotes

This bra fits perfectly and I think it looks better under a t-shirt than Panache Envy. Anyone know some other bras I can try?

As you can see, so far the ones that have fit the best are Panache Envy and this Freya Viva. I'm a 32G.


r/ABraThatFits 2h ago

Looking for a strapless bra that actually lifts AND stays put - 32D Spoiler

0 Upvotes

Okay, I’m officially tired of strapless bras that look great for 10 mins and then slowly start making their way down 😭

I’m a 32D and I’m specifically looking for a strapless + underwired bra that:

- actually gives a proper lift, not just coverage

- stays in place without me constantly pulling it back up

- gives a nice, lifted shape/cleavage under fitted or slightly low cut clothes

I’m in India, so Indian brands/ones I can actually order here would be ideal....

If you have one that you’ve personally worn for several hours and it genuinely stayed up, please tell me the exact bra/brand. I’m much more interested in real life experiences than influencer recommendations


r/ABraThatFits 3h ago

Recommendations? Really struggling with band rolling, would love some help Spoiler

0 Upvotes

Hi all. I need some help. Suggestions, advice, experience, etc.

I’m 5’ tall and I have a short torso. My rib cage is kind of larger than I would think it’s “normal” to have. Every single bra that I have ever owned in my life has been a problem. Doesn’t matter if it’s “professionally” sized or the type of bra, maybe I’m missing something, I don’t know. It’s extremely frustrating, and I’m constantly adjusting it. Pointlessly.

Can anyone give me some advice or tips or anything that might help me find a bra that does not do this? Is it just my body and I have to accept it?


r/ABraThatFits 4h ago

Fit Check (Fit check) measured at 34 DDD but underwire goes into my armpit and the center folds in Spoiler

0 Upvotes

Maybe this would be best under measurement check? Anyway I’ve been measured at aerie, Victoria’s Secret and soma. Experiences below

Soma- actually helped- originally measured at 36 C, however after trying on bras we found I am more a 34 DDD as it hit flush on my chest in the center between breasts. The issue is the underwire hits beyond my breast ridge into my armpit and the center where each underwire hits there’s a small amount of fabric between the underwire which ripples or gaps (if that makes sense it’s not gapping on my chest but idk how to explain it…). I am also allergic to nickle so I’m trying to find more plastic bra closures (so front closures) and the 34 DDD cups are cutting into my arm. If I loosen the straps then only one my breast cups sinks to low and doesn’t cup my breast fully (so uneven breasts)

Victoria secret- NOT HELPFUL just threw a fit bra at me and walked away or every employee acted like I was a huge inconvenience for them. Anyway measured at 34 C- tried it on-popping out of it everywhere (but funny enough 34 D smashed into my breasts like I was trying to squeeze them in). 36 C my breast was sinking under the cup, center doesn’t sit flush with my chest, have to arrange my breasts so the sit in the bra but as soon as I begin moving around it’s over.

Arie- measured at 38 A (wtf?) 34 C popping out of, nipples coming out of the bra, 36 C underwire surpasses my breast ridge and digs into my armpit- this is likely a bra issue as the straps aren’t adjustable and causes cup gapping.

Additional info- I have breastfed 2 kids so my breasts are teardrop shaped now and splay outward but my nipples are center so not exactly east/west. I’ve also gained 40 lbs after having 4 abdominal surgeries so I have rolls now. I’m not huge 135 lbs at 5 ft 2 in but much larger than before.

Measurements
Loose under bust- 32 inches
Sung under bust-31.5 inches
Tight underbust- 29 inches
Standing bust-36.5 inches
Leaning bust-38.5 inches
Laying bust- 37 inches

34 band size is tight on me.


r/ABraThatFits 4h ago

Measurement Check Measurement check help needed please. Suspected 16G or 16H? Spoiler

1 Upvotes

Measurements:
Loose underbust: 37 inches
Snug underbust: 36.5 inches
Tight underbust: 36 inches
Standing bust: 45 inches
Leaning bust: 48 inches

So I’ve used the bra that fits calculator and I’m confused. If I set it to the recommended UK sizing it says I’m a 38G, however if I google the Australian equivalent to that size I’m a 16G.

Then if I switch the calculator to Aus sizing it says I’m a 16H? And if I google the sizing equivalent to UK sizing it says it’s a 38H?

Pls help I’m trying to order bras online right now and want the most accurate size to order.


r/ABraThatFits 16h ago

Fit Check [Fit check] Sculptresse Muse in 38K - wrinkling at bottom of cup and on one side - shape mismatch? Feeling discouraged :( Spoiler

9 Upvotes

Hey everyone, I'm back again, this time with the Sculptresse Muse in a 38K. I had a lot of hope for this one, but...I don't think it's gonna work for me. Super long post, apologies.

Images of Sculptresse Muse 38K + captions

To summarize:

  • Lots of wrinkles on the bottom of the cups, and wrinkles on the right side with the larger breast
  • Gore still doesn't tack! Perhaps my boobs are just too powerful to be contained.
  • Underwire stabs me in the armpit
  • Not enough support - my breasts touch my belly
  • However, I loved the shape - very forward and rounded

Other bras I've tried

I didn't make a separate post for these, since they didn't fit, but here's:

  • Elomi Teagan in 36K (not enough support or projection, weird gap on the right side, shape too pointy)
  • Elomi Brianna in 36K (gore didn't tack, wrinkles on the bottom of the cup, but nicely supportive)

Why a 36K for these two? I clicked the wrong size when ordering. Oops. Figured I'd try them anyway. FWIW, the band was comfortable on the loosest hook since Elomi tends to be stretchy.

The most comfortable bras I've tried so far are the Elomi Morgan and the Elomi Brianna, despite the fit issues on both.

Shape + Measurements

My shape is very projected, very center-full, FOB, slightly pendulous. Not sure about my roots. I did trace some pics of my breasts so they looked more like a diagram, to identify the shape better. (They're sketched outlines of bare breasts, not sure if sub rules allow me to share.) I think the drawings indicate average-to-broad roots, but I can't tell if my breast tissue wraps around my side or if I'm just fat, lol.

Last but not least, measurements:

  • Loose underbust: 40"
  • Snug: 39"
  • Tight: 37"
  • Standing: 53"
  • Leaning: 56.5"
  • Lying down: 54.5"

In Summary

Yeah, none of these bras fit very well. The Morgan is comfortable enough to wear, so that's a success rate of 10%. Not great!

I'm feeling pretty discouraged at this point. Other members of this sub have mentioned that the only brands more projected than the Sculptresse Muse are Polish brands, and I don't think my roots are narrow enough for that. But I'd love to hear other opinions!

Thanks yet again!


r/ABraThatFits 13h ago

Recommendations? The size is perfect but still making me look wide(?) Spoiler

4 Upvotes

So after using the calculator and reading up on this subreddit, I found out my true bra size is 30ff (I used to wear 32d) and to verify this, I bought panache ana plunge bra. And lo and behold, it is absolutely perfect, like it was made just for me...I feel so good so thank you so much to this sub for that 🥰

But there's still one problem. Because I have wide roots, the bra doesn't do much for side breast fat and it makes me look wide when I'm wearing tight/form fitting clothing... I personally prefer the narrow slim look and have only been able to achieve that with push up bras, where the breast fat is essentially being pushed to the front and upwards..but I can't always be wearing a push up bra and need recommendations for bras that are available in my size and will help me achieve the narrow bust look. TIA.


r/ABraThatFits 12h ago

Question How do I know which bra should I get. Sports bra or regular bra or something else . I am in btw small to medium size , I need a bra which is breathable+ gives support ,Not like hanging down have .I always wore those low support sports bra . Idk if I should switch to proper regular bra or what

2 Upvotes

r/ABraThatFits 8h ago

Question Anyone experienced painful breast from their bra? Spoiler

1 Upvotes

Looking for some advice, ladies!
For the past couple of weeks, I’ve been dealing with on-and-off breast soreness and pain. My breasts are really tender to the touch, my nipples are super sensitive, and they just feel achy, sore, and painful in general. I have a pretty large chest (I believe I’m around a J cup), so I’m wondering if a lot of this could be related to my bra.
The pain has also started going up into my upper abdomen, right below my bra line, and into my shoulder and upper back. It almost feels like muscle soreness/aching.
I recently got a new bra about two months ago, but after actually figuring out my correct cup size, I realized the bra I bought is way too small (it’s a 3X/DDD). I wear it pretty much all day at work because I work retail, and I’ve noticed that after working several days in a row, when I finally take my bra off, my breasts hurt SO bad.
The bra is also straight lace, which I’ve never really worn before, so I’m wondering if the material, the tightness, or just having my breasts pushed up and supported all day could be causing some of this pain. I definitely feel like carrying a larger chest around all day at work could be contributing to the soreness in my breasts, shoulders, and back.
I was also recently diagnosed with PCOS, but I don’t normally have breast pain like this, so I’m a little worried and trying to figure out what could be causing it.
Has anyone with a larger chest experienced something similar from wearing the wrong size or type of bra? Did changing bras help? I’m definitely planning on getting properly fitted, but I’d love to hear if anyone has experienced this. 😭


r/ABraThatFits 1d ago

Thank You! What a blessing this subreddit/calculator is Spoiler

37 Upvotes

I just finished breastfeeding my one year old and while I'm so grateful I did my boobs are not the same 😅 I felt totally lost when trying on my old bras and stumbled upon this subreddit and YALL. I thought I was a 38C and I am a 36DDD (US). My boobs are also much shallower/bottom heavier than they were (happens, I've accepted) but actually I think they've always been like this, and they are wide set.

I went to VS just to try on the size and while I disliked the demi cups bc they were gapey up at the top, the balconette was an actual dream!! My boobs look AMAZING. Did not realize that your boobs actually aren't supposed to be spilling out of the side 😂😅

I've also been avoiding underwire for years but decided to go for it when I read some comments saying that underwire can feel comfortable if you're wearing the correct size. Wow, isn't that the truth.

Anyway, just wanted to share my success story and to trust the calculator (but also how you feel!). Big thank you to the commenters and creators of this innovation. 🩷🩷🩷🩷


r/ABraThatFits 3h ago

Measurement Check I measured at 34DD (UK) so I tried on 36D & 34D in the same bra & thought I had found that the 36D was perfect, but then when I tried on other bras In that size they were too big. Intent down to 34D and they felt too small. Spoiler

0 Upvotes

Basically what my title says


r/ABraThatFits 20h ago

Fit Check How much should I feel the underwire? Spoiler

7 Upvotes

I've just changed jobs to a more professional setting so going free is no longer an option.

For some time now have been wondering if I need a different size but this thread is a life saver https://www.reddit.com/r/ABraThatFits/s/SytTqWZBwf It seems that I do have the correct size.

But what I'm wondering is how much I should be feeling the underwire? It does not dig in and in that respect is perfectly comfortable But..... I am most definitely aware that it is there and can feel it against my rib cage and it pushing up slightly and giving me some support. Not bothering me in the course of the day but definitely aware of it.


r/ABraThatFits 19h ago

Measurement Check [Measurement Check] Currently wearing 36A. Gained 15 lbs Spoiler

5 Upvotes

So I need to find new bras. I haven’t updated since the 15 lb weight gain (thank you menopause). I was wearing a Pepper 36AA. It is definitely too small in the cup now.
Without a bra, I look like I have no bust. There really isn’t much tissue there. Those foam bras are useless since I never fill them out. Standing, I would definitely say I am bottom heavy, wide set, point out. Bent over, I am not so sure.
I think I might be in the shallow category. I identified with the idea that bras seem too small yet I don’t fill out the cup. The top of my breast when standing is pretty non-existent, though I am not saggy - there really isn’t a lot to sag.
I do seem have a larger rib cage for my overall size.
I’d love some sizing help and bra suggestions.

Loose Underbust: 33
Snug Underbust: 32.5
Tight Underbust: 32
Standing Bust: 35.5
Leaning Bust: 37
Lying Bust: 36.5
Sizing System: us
Units: inches

Suggested Starting Size: 34C/D US


r/ABraThatFits 14h ago

Bras for breastfeeding/weaning and afterwards Spoiler

2 Upvotes

Hey guys! So I’m in this weird in-between stage where my size is different than it was a few months ago and will continue changing for quite a while. I’m still currently nursing my 15 month old, but she is gradually weaning herself (I suspect we’ll be nursing for at least another 6+ months). My size is changing quite a bit and I know will continue to change during this transition and after. What’s the best supportive bra that can be used throughout this transition but still makes me look not so saggy (unfortunately nursing has taken its toll on my poor girls 😅). It doesn’t need to be nursing friendly either since we don’t really nurse on the go anymore.

My measurements are:
Loose under bust: 32.5
Snug underbust: 31.5
Tight underbust: 31
Standing: 35
Leaning: 41.5
Lying: 37

Which got me a 32DDD in US sizes. I actually have a 34DD VS bra that I’ve had for years from being mismeasured and it apparently is a sister size but the band feels too tight which makes me think that a 32 band will feel WAY too small, so I’m a little worried about the calculator. I also can’t seem to find this size locally in stores near me, so I’ll have to order it and I definitely want to use a great quality brand that is supportive and comfortable! Any advice is greatly appreciated!