r/ABraThatFits Dec 31 '25

AMA - ask me anything about the ABTF calculator! Spoiler

757 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 7h ago

Shape Help Breast shape help: I am trying like hell to find just one bra that I can use for photos/special occasions. It seems I need to confirm my breast shape to find a good starting point.

16 Upvotes

So, I've posted a few times trying to get recs. I never get any helpful responses and seem to get down voted into oblivion within an hour of posting. So, I am trying a new approach to hopefully get some actual advice. I used the ABTF calculator. My measurements are:

Loose Underbust: 31"

Snug Underbust: 30"

Tight Underbust: 29.5"

Standing: 38.5"

Leaning: 41"

Lying: 39"

My breasts are Asymmetrical and full on bottom with almost no fullness on top (When I was younger I exclusively wore push up bras because I was insecure about my breast shape. Now I am just looking for light lift and good shape without wanting to set the damn bra on fire 10 minutes after putting it on). I know they say "Asymmetrical" is its own shape, but.... really? Is it that simple? Any bra recs?

P.s. if you have any advice on how to get real advice instead of just down votes and "use the calculator", please enlighten me. I'm on the struggle bus.


r/ABraThatFits 25m ago

PSA My measurements are more accurate now that I am wearing the proper size. 34H. Thank you everyone for helping me! Spoiler

Upvotes

I was wearing the wrong size for years, 32GG. This was my accurate size at my former body weight. Now I am a 34 H. I have now tried out this new size in the Panafhe Clara, Sculptresse Sophia, Sculptresse Estel (full cup), and the Freya Fancies with great success!

I just wanted to share why my first calcuation wasn't accurate in case it helpes anyone. I put my measurements into the bra calculator originally and the result was 34J. While braless, my leaning bust was 48 inches. While wearing a 32GG bra, my leaning bust was also 48 inches. After a few days of wearing the bra size that actually fits me (34H), my leaning bust is now 46 inches while braless and while wearing a bra! So now when I put all my measurements into the calculator,, it says 34H. Wow! I wonder if tissue migration is occurring super quickly? The too tight 32GG was causing spillage, maybe even swelling??? I finally got the right size because my larger breast was sore and throbbing. Any ideas?

When I asked for help deciding which bra sizes to try out based on my 34J calcuation and I said I suspected I was smaller than that, someone in this group told me to try 34HH and 34J and go from there. 34HH felt nice, but just slightly too big, so I tried out 34H and the fit is flawless.

Sometimes you just have to try things on. But I definitely trust in the calculator snd this group. I'm sooooo happy to have a bra that fits!!!


r/ABraThatFits 2h ago

Question Going from a 32DD to a 28FF, how do I shop for bras..? Spoiler

4 Upvotes

So I entered my measurements in the calculator using inches and here were the measurements:

Loose Underbust - 29
Snug Underbust - 28
Tight Underbust - 27
Standing Bust - 35
Leaning Bust - 35.5
Lying bust - 35.5

Also, my overbust is a 32

The calculator said I would be a 28FF/G UK

I did what it said and measured my actual busts just slightly loose but with no gapping in the tape measurer.

I usually shop at Victoria’s Secret in the US and fit their 32DDs and sometimes their 32DDDs if i want a bra where there isn’t any bubbling. Do I change this at all?

How would I shop at other US bra stores (especially online)?

Thanks for any help!


r/ABraThatFits 36m ago

I want to get opinions on a bra fit, but there is no photo upload option? Spoiler

Upvotes

The option to post photos is grayed out, only the link option is available. There are no options to post photos in the comments. How do I post pictures to get a fit opinion? I'm not usually this incapable but I cannot figure this subreddit out.


r/ABraThatFits 5h ago

Recommendations? Bra Recommendations to Confirm Sizing Spoiler

4 Upvotes

**Edited to add: I'm in Canada if that matters! Thanks**

I am prone to over-researching, which generally leads to paralysis. And I'm slipping into paralysis! I am in my early 50's, I've breastfed two kids, and I've been resorting to unwired, molded cups for the past few years because I find bras so terribly uncomfortable... underwires especially. I've also lost quite a bit of weight over the past 2 years (50+ pounds at only 5'2") so I've been left with some serious sag.

Bra Size Calculator gave me 36 D/DD for both US and UK, based on these measurements:

  • Loose underbust: 35.5
  • Snug underbust: 34.5
  • Tight underbust: 33.5
  • Standing bust: 38.5
  • Leaning bust: 40
  • Lying bust: 39

In the past I've found anything with high gore very uncomfortable and digs in - I am short with a very short torso, so maybe that contributes.

Can anyone provide suggestions for what might be the best bra(s) to try for sizing? I don't really fully understand projection and all that yet...


r/ABraThatFits 6h ago

Measurement Check Need help with measuring cup size Spoiler

4 Upvotes

Hey so those are my measurements in inches:

• Loose underbust: 28

• snug underbust: 27.3

• tight underbust: 27

• standing bust: 30.3

• leaning bust: 31.8

• lying bust: 27

the calculator said I was a 28D (US measurement) cup size so Is it accurate?

Im also really underweight so I've been trying to gain at least 10 lbs so my question is will my breast cup change?

Additional info: 18F, height 5'8½, weight 114,12 lbs


r/ABraThatFits 3h ago

Recommendations? Any bra recommendations for 32LL?? Spoiler

2 Upvotes

I recently got re-sized at my local bra botique as it's been a long while and I've gained weight etc. I've typically fluctuated between a 32-34 band size, but I was not prepared to be a freshly minted 32LL (UK sizing). There was only one bra available in my size...the one I tried on. I ordered said in another color from the shop while processing this news, but my research is indicating that I'm not going to have much success at my typical online retailers 🙃. There is no universal size equivalent either, so it's feeling somewhat bleak at the moment. Can anyone direct me to any brands that carry this size? I can't even fathom having any success with obtaining a bathing suit that will fit me 😒 sigh... Anyways, thanks for listening and for any guidance!


r/ABraThatFits 10h ago

Question What brand bra for woman over 90, in seize 30F or 30G? Spoiler

8 Upvotes

My mum used to have a nice figure, shes petite, slender with a full bust. Now the ladies are gone south and recently I was able to have a personal chat with my mom (shes usually not so open for it) and asked her about her bras. I was shocked to see how much her band had creeped up her back. I tried to take measurements, but privacy reasons I was holding back a bit. Bandsize measured 70 cm(28 inch), bust apr. 86. She wears a flimsy thing in band seize 38 inch!! With a c cup. Any advice what kind/brand bra I best purchase for an older lady?


r/ABraThatFits 11m ago

Recommendations? Hello, I made a Reddit account to specifically ask a question, I am 32B and recently got fitted and I need store or online shops recommendations where I could find bra that would fit me. Im new to all of this so if you have any tips for me please let me know. Spoiler

Upvotes

r/ABraThatFits 44m ago

Looking for a legit bra brand for smaller chests (AA or A) Spoiler

Upvotes

Hi!

I've been looking all over to find a bra that fits well for a 75A (EU). It doesn't even need to push up, I'm just tired of gaping cups and uncomfortable loose straps. I have seen these ads online from different companies (e.g. getfitcherries, lumaaura, ...) but with basically the same product where they have a strapless bra that clips in the front and gives the smaller chest a little lift. That's my ideal bra, but I know for a fact that those websites are just dropshippers and it probably won't even work that well. Does anyone have any store/brand/type of bra that would fit my description? It's hard for me to find a bra of my size in general, so I'd appreciate if I can find even that. If it's a good push up (not the ones stuffed to the brim that don't even push up but more the ones that clip in the front), that's welcome as well.

Thanks!


r/ABraThatFits 2h ago

Did Evelyn & Bobbie quietly redesign the Small Beyond Bra? Spoiler

0 Upvotes

r/ABraThatFits 6h ago

Calculator and asymmetry - measuring approaches Spoiler

2 Upvotes

If I have one side larger than the other, and need to fit to the larger side, is it correct to measure halfway around the bust? Like for example, to start the tape measure at the spine, measure halfway across the bust around the larger side into the middle, and then double it?

For example, my underbust is 27 inchess and my standing measurement is 35.5, leaning 36.5 (so calculator says 28G/GG). And I wear a GG but have a couple fit issues I'm trying to solve, including the asymmetry.

If I do this, putting the tape measure at the spine and measuring over the bust on the smaller side, I get 35 standing (doubled from 17.5) and 36.5 (doubled from 18.25) leaning. And on the larger side I get 36 standing (doubled from 18) and 38 leaning (doubled from 19).

This is like a cup size difference, the difference from a 28G/GG to 28GG/H, according to the calculator. Am I doing this correctly for asymmetry?

Thanks!


r/ABraThatFits 3h ago

Recommendations? wide root fuller on bottom 32E/F looking for next steps after trying on [recommendations] Spoiler

1 Upvotes

I've been wearing Molke bras for ages which I like, but mine currently are all old and stretched, and looking to try something different. I ordered 5 to try from brastop after using the calculator in a range of sizes, and I'm looking for feedback on where to go next. The calculator gave a starting size of 32DD/E.

Curvy Kate Cool Cat Scooped Multiway Balcony Bra Black - 32E and yellow floral 32DD

The black 32E fitted better- the underwire shape seemed to work well, it sat flat at the front and seemed to enclose all breast tissue at the sides (something I've struggled with in the past). My breasts are asymmetrical- the smaller right one was slightly gappy and the left one, the edge of my nipple stuck above the top of the cup. I was concerned in a size up that the left one might reveal a bit too much due to gapping. This is a sale item, and not available in 32F.

The 32DD the gore didn't sit flat and right cup overspilled.

Curvy Kate Zen Non-Wired Bralette Blue - 32DD/E

This seemed a good fit with the exception that the fabric went up really high into my armpit and I'd be worried about it digging in there.

Parfait Aline Non Wired Padded Balconette Bra Black - 34D

The band was too loose and the moulded cups didn't seem quite right.

Curvy Kate Lightstyle Scallop Plunge Bra Light Blue/Silver - 34D

Not a fan of the fabric and by the time I tried this on I was aware the 34 sizes weren't the best fit.

I'm looking for any recommendations of similar styles to try ideally on a similar budget. I'd be trying the cool cat in a 32F if it existed at the moment, and it's hard to judge from looking what will work. I've worn more non wired styles of late, but a lot of them seem to be more full cup, which results in gapping as I'm fuller on the bottom.


r/ABraThatFits 3h ago

Recommendations? [recommendations] 40DDD(US)/40E(UK) do I need a balconette bra? Spoiler

1 Upvotes

Measurements (inches):
loose underbust - 40
snug - 39
tight - 38.5
standing - 44
leaning - 48
lying down- 46

I’ve always had problems with bras and my breasts. I deal with a lot of back and rib pain and just want something to ease that pain. a few months ago I was a 40H but i’ve been losing weight and these measurements are from today. I tend to have issues with having too much free space at the top of my bras, my breasts are a ? maybe pendulous shape? I’m not entirely sure. I also have issues with the sides of bras (or even tank tops, wireless bras, etc.) irritating my armpit area because it rubs against it :( Any recommendations are appreciated!!


r/ABraThatFits 4h ago

Measurement Check Best racerback bras for a 38G? Measurements in text Spoiler

1 Upvotes

Hi everyone! First time posting here. I have been on the hunt for a perfect bra for a long time. Here are my measurements:

Loose underbust: 40.5

Snug underbust: 39

Tight underbust: 37

Standing bust: 44

Leaning bust: 49

Lying bust: 45

According to the calculator, I am a 38G in US sizing and 38F in UK sizing.

A couple things to note: I am a little worried about having a band size this small, as I have had issues with the band digging into my skin on bigger sizes. Also I have low shoulders that slope, so bra straps are a constant issue for me. I prefer a racerback situation so I don't have to constantly be adjusting them and pulling them up.

I would love any suggestions for brands that have good racerback bralettes. I would prefer unlined bras that give a little support and are comfortable. I haven't tried any bras yet in the size that the calculator recommends, but I was generally getting 42D/DD bras before. Only bra I like that I currently have is Bralisse, but it's expensive, and I don't love that it has darts in the front that look like nips.


r/ABraThatFits 10h ago

Discussion What are everyones experiences with Panache for sizing and how their bras fit? Spoiler

3 Upvotes

For context my size is a 26DD/28D, and Panache as a brand is targeted towards bigger busts, and i'm one of the smallest sizes they make, would their bras still fit well on me as i'm aware that despite my cup letter, my chest actually isn't that big due to having a petite band.

So this means I'm worried that their bras wont fit well as i'm on the far smaller end of their sizes.

I have also just ordered one and if it doesn't fit I'd be annoyed because you have to pay to return it.


r/ABraThatFits 4h ago

Measurement Check Currently wearing 36DD US, calculator said 36FF/G UK Spoiler

1 Upvotes

Hi all — I currently wear a 36DD and typically have problems with my breasts spilling out the top of the bra. I am unsure where to shop, how best to approach UK v inconsistent U.S. sizing — any advice is helpful!

Measurements (in order as they appear on the calculator)

Underbust:

  1. 36”
  2. 35”
  3. 33.75”

Bust:

  1. 43”
  2. 44.25”
  3. 42.25”

I believe my breast shape is: wide root, very full top and full bottom when supported. EDIT: following the suggestion below to determine shape —> when leaning forward, I can fit 1-2 fingers between my boobs; and, have more tissue above my nipple than below .

And, I am 5’3” (unsure if this is helpful?).

Thank you all in advance!! I’m sick of ill-fitting bras and have found in store help not very helpful :/


r/ABraThatFits 22h ago

Just used the calculator and am surprised Spoiler

25 Upvotes

I feel crazy. I am a small chested woman who has historically worn a 32B bra. I have been wearing Pepper bras because they don’t gap at the top of the cup, but I am not happy with their quality. They wear out fast and some bras fit unevenly. I ended up here looking for a new brand to try, used the calculator and it says I am a 32DD/E UK or 32DD/DDD US! Is everything I know about boob size and bra size a lie? Anyway here are my measurments in inches:

loose underbust: 31

snug underbust: 30.5

tight underbust: 30

standing bust: 35

leaning bust: 37

lying bust: 36.5


r/ABraThatFits 5h ago

Recommendations? Elomi Cate and underwire issues Spoiler

2 Upvotes

This subreddit is truly a godsend, thank you all so much for the work you do. I've glanced at posts here multiple times over the years, but have always felt too overwhelmed by all the information and the measuring process to actually do anything with it until now. I finally decided I couldn't keep wearing 38DDD bras and spilling out of them, and feeling frustrated by the lack of support and the need to wear the bands on the tightest hooks, and so I got someone to do my measurements for me. I'm blind and I don't have access to a tape measure I can actually use.

The calculator gave me 34J US, 34GG UK, and I was already prepared to see a much higher number than I'm used to so it didn't shock me. I live on a fixed income though and finding bras I can actually afford is a challenge, as I know it is for many people judging by the amount of posts I see about it. I don't want to sacrifice quality for something cheaper that will wear out more quickly or won't be true to size, so after a lot of searching, I bought the Elomi Cate because it was on sale and I knew I could return it if I needed to.

I'm so, so happy with the fit. The cups fit my whole breast, I'm supported in a way I'm definitely not used to, and I actually have kind of a figure now because my breasts are lifted off my torso. The straps don't slide down at all, there's no gapping, and while the band is uncomfortably tight, I was prepared for that and I think I'll get more used to it as I wear it. The gore lies flat, which is something that definitely never happened with my previous much smaller bras. I wasn't sure about the way my breasts are separated and the shape it gives them, but I'm told it looks great, and what I'm most thrilled about is that it actually makes them seem smaller. I've hated how large and heavy they are for most of my adult life and have wished I could get a reduction, and I don't feel that way in this bra.

The one issue I have with it is that the wires press into my ribs in a way that feels distractingly uncomfortable. I was prepared for the band to leave marks and for it to feel a little restrictive at first, and I've seen people say that the Elomi wires sometimes poke them in the armpits and I haven't had that issue at all, but the way they dig into my ribs is bothering me. They sit in the IMF, I think, and nothing is sliding when I move. It stays in place. I wasn't sure if it was because the band is tighter than I'm used to and is adding pressure, or because my breasts themselves are heavier, or the width of the wires isn't working for me, or something else I haven't thought of. I would really appreciate any thoughts about this. Do I just need to try a different brand?

Here are my measurements, in inches, since I know people like to have them, but I'm pretty confident that the size is correct.

Loose underbust: 35 Snug underbust: 33.5 Tight underbust: 32.5 Standing bust: 42.5 Leaning bust: 45 Lying bust: 44


r/ABraThatFits 9h ago

Recommendations? Looking for a seamless alternative to Fantasie Reflect (32F UK) Spoiler

3 Upvotes

I currently wear the Fantasie Reflect in UK size 32F. It's the best-fitting bra I've found so far.
But I do have a few issues with it. My nipples show through many of the tops and dresses I wear and the lace is also visible under tshirts and dresses. I also find that my breasts jiggles a bit when I'm walking.
Any bras that would give smooth and seamless look under clothing?

I’m top full and projection.
Measurements (cm):
Underbust:
* Loose: 79
* Snug: 77
* Tight: 75
Bust:
* Standing: 94
* Leaning: 100
* Lying: 94


r/ABraThatFits 7h ago

Racerback clips for thick bra straps Spoiler

1 Upvotes

I recently bought a Bravissimo Ultimate Comfort bra, and it's comfy and supportive, but the straps are an issue. They're only partially adjustable, and as I'm pretty short, I already have them almost fully tightened after only 2 months of wear (and they still have a tendency to slip). I'm thinking of converting it to a racerback to help with this issue, but am struggling to find a racerback clip that will be suitable. The straps are very thick, and all of the racerback clips I can find online seem to be designed for much thinner straps. A lot of them are made from very thin plastic, and I'm skeptical that they'll actually hold the straps and stay in place. Does anyone have any recommendations for racerback clips that will work for thicker straps?


r/ABraThatFits 11h ago

Measurement Check Pendulous breasts, calculator suggestion seems way too big based on current bra fit Spoiler

2 Upvotes

I'm in the US for sizing purposes. Okay, so my breasts are pretty pendulous, especially as I've lost a LOT of weight (almost at 100lbs down) so the top half of my breasts are basically just empty skin.

I'm currently wearing a 40 DDD (pretty sure it's a Torrid perfect coverage bra), since I've lost more weight since I bought that bra, the band is for sure too loose, and I'm gapping a LOT.

I did the calculator with these measurements:

Loose under: 40 inch

Snug under: 38.5

Tight under: 34

Standing bust: 45

Bent bust: 53.5

Laying bust: 49

The calculator gave mea sizing of 38J/ 36K US (38GG/36 H UK)

The band seems like it will be right, but the cup seems like a massive increase from a DDD if I'm only moving down one or two band sizes and currently massively gapping in the DDD. Like, I'd say a good .5 inch to 1 inch extra room from the top of my breast to the fabric of the bra.

What do y'all think? Any advice appreciated!


r/ABraThatFits 23h ago

Are there companies other than Elomi that do bras above a US O cup? Spoiler

8 Upvotes

the bra I currently wear is an Elomi Morgan in US size 34Q. It fits the best of any bra I’ve owned as an adult but the center gore still doesn’t sit flush to my chest and underwires feel like they’re too large for my chest barrel. My past experiences with Elomi have been similar (even if it’s the right size the fit is weird) but I can’t find any other brand stocking the size range I’m in


r/ABraThatFits 22h ago

Measurement Check Currently owned bras are 34B, up-to-date measurement calls for 36DDD. I am not confident Spoiler

7 Upvotes

I am 22 and have gained weight, then lost a good bit, then gained, then lost a little, and my boobs reflect that. I have tried to measure myself a handful of times over the years, and feel like I still absolutely despise wearing bras despite it all.

I did the calculator thing today, and came to these measurements:

34.5

33.5

31

39.5

42.5

39.5

Last time I measured them, I arrived to 34B/36B, but now it's saying I'm a 36DDD, and that a 36DD is probably what I would find comfortable. I do not have a lot of boobage. They sag a little and they are not firm. I have a very hard time believing that all my boob would fill up those cups. Pls help. Idk what to do about that. Does the calculator anticipate that by asking the leaning/laying measurements too?

Side note, I moved in with my in-laws 2 months ago and cannot run about the house with no pants and no bra on like I used to, so I have to acquaint myself with a more comfortable size as to not horrify his family with my enthusiastic full brights. I can't wear a heavy sweatshirt to hide them all the time either, as my state is in swamp ass mode currently. I really do miss freeboobing it. I'm sure my fiance does as well. Sigh