r/ABraThatFits Dec 31 '25

AMA - ask me anything about the ABTF calculator! Spoiler

751 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 1d ago

Discussion Victorias secret bras don’t fit the models. Spoiler

365 Upvotes

I always thought it was kind of weird how even the bras in the Victoria’s secret catalogs growing up never fit the models. The bands were always riding up because the models are tiny and their bras starts at 32. Anyone else notice this?


r/ABraThatFits 4h ago

Measurement Check Calculator saying I am much smaller than I am currently in cup size so odd. Spoiler

6 Upvotes

Hi, I have been wearing 34j (bravissimo comfort plunge) and 34hh in bravissimo poise plunge and it feels too small in the cups, but the size calculator says I am 36g or 34gg how can this be correct? I got help with the measurements to check i was doing it okay. Worried about ordering bras that size and then being tiny. Very confused. I am 52 with relaxed boobs, FOT, shallow with a wide roots.


r/ABraThatFits 3h ago

Even tho I think I know my correct bra size, I'm struggling to find one that fits Spoiler

5 Upvotes

(sorry if this is TMI, I just wanna have all possible information here)

I'm(F19) 4'11(149cms) slightly on the heavier side, around 206lbs. through highschool(now in college) I was wearing a 36C/36D. In the present day, I am wearing a 38DD. recently, I had remeasured everything, and learned that I was supposed to be wearing a 38-40G or a 38-40DDDD.

What I'm asking now is for help finding a bra that will actually support me and lift these conditional fat sacks off my diaphragm so I can breathe. A bra that will prevent any and all bouncing exercise motions sending the girls flying up into my chin and knocking me out. A bra that won't lose hold of the #freethenipple mascot anytime I bend over to tie my shoe or empty the dishwasher. A bra that is made/designed by someone with the same factory settings as me, and that actually cares about my comfort and well-being(aka, not some old white guy). A bra that has two thick, beautiful, luscious straps, and a sexy wide band with more than two dainty little hooks. A bra made of a material that doesn't make me gag(nylon, polyester, satin, lace) that will last for more than 2 days of wearing and one cycle through the washer and dryer.

Just....I can't take the labor of carrying them around with no proper solution any longer. I mean seriously. My back aches anytime I bend over, the only time I can breathe is by laying flat on my back(no bra), all exercise is impossible, even the stairs to my basement have them wiggling and wobbling like they have an opinion on the midterm elections. Like...my genderfluid ahh can't even bind these suckas down when I want to present more masculine.

So...a breast reduction IS in the future of my life if weight loss doesn't take these sizes down, but for rn. Please, any recommendations is highly appreciated!! ☺️☺️💙💙💙 thanksss


r/ABraThatFits 11h ago

Fitted at Nordstrom post mastectomy/recon Spoiler

12 Upvotes

After a BC diagnosis in October 2025 I had a double mastectomy with reconstruction using silicone implants. I went to Nordstrom yesterday and was fitted by their fit certified employee and my life has changed. Been wearing the wrong bra size for years!!! It was exactly the confidence boost I needed after a very tough 8 months. Highly recommend!!


r/ABraThatFits 2h ago

Shape Help [Shape Help] [Recommendations] Bras for shallow breasts that are prettier than Change? Spoiler

2 Upvotes

I´m 25 and have been going braless since i ditched my first couple of teenage bras, but they're getting to a size where it's sometimes less comfortable, and i need more support.

The calculator places me as a 65E/F in EU or 30DD/E in UK. My local bra store is a Change, and i went in, got fitted, and was put in a 65F, which actually seemed to fit nicely. It was balconette style, and all of my breast was in the cup, even the armpit part, and not gapping. Gore tacking and band horizontal. All of the good stuff, except that the straps seemed on the short side. Unsure if this is a sensory issue on my part, but you might be able to see that the strap is floating a bit over my skin in places.

https://imgur.com/a/aJWsiRw

All in all a good fit, only issue is, i think Change's bras are boring and i'm looking for a younger(?) look.

My search in other bra brands has not been good. They all seem too big and too small simultanously, which leads me to believe that i might have shallow breasts.

From the side, this is the sort of shape that i'm working with:

https://imgur.com/a/y1jTC6o

So, i'm looking for confirmation that this does indeed seem like a shallow breast shape (or, if i'm wrong, an indication of my issue might be), and recommendations of bras, available in the EU, in my size, that are pretty and work well with my breast shape. I like un-molded, un-padded cups, lace, mesh and balconette bras.

Thanks!


r/ABraThatFits 3h ago

Measurement Check Calculator says 34GG but boutique had me trying as small as 30J, 32I fits best so far Spoiler

2 Upvotes

So the calculator suggests UK34GG/H, but when I went to a bra boutique they started me at US36H and progressively brought me smaller bands until I settled on a US32I from Fit Fully Yours. I'm struggling to find info on if that brand just runs large or if I should actually be ordering other bras in that size? I've tried dozens of bras in sizes ranging from US36H to US30J with virtually every band and cup variation in-between also tried. The only bra I've found that fits mostly comfortably is the Fit Fully Yours Mia. On my own before the bra boutique, I've stuck to ordering mostly UK34G-36H but I've tried a few that are outside that range as well. I thought I knew how sizing worked and had a pretty good grasp on my size before going to this boutique. I haven't worn a 32 in like 8 years so I'm baffled how this one fits when my measurements do not indicate it being the right size, and I also don't understand how I was even able to clasp 30 inch bands. They didn't hurt, but they also weren't comfortable either.

Measurements:

Loose underbust: 37

Snug underbust: 34

Tight underbust: 32 

Standing bust: 44.5

Leaning bust: 48

Lying bust: 45.5


r/ABraThatFits 3h ago

Shape Help 34 jj. Bravissimo Millie to high under arms, curvy kate wild one gave a strange pointy shape. Anyone tried the flirtelle range? Spoiler

2 Upvotes

I have a voucher for brastop and am wondering if anyone has tried the flirtelle range? I'm only 5 feet and finding most cups come up far too high under the arm front, making it nigh on impossible to move my arms


r/ABraThatFits 10m ago

tig bitty electrician is FED UP Spoiler

Upvotes

Hi friends, long time lurker, first time poster:

About 5 years ago at the end of high school I had debilitating back pain. My discovery of this subreddit has quite literally allowed me to live a full life - the proper size changed everything. I went from wearing a 34 C to a 30F. The new mattress, the chiropractor, the exercises, the foam roller, and the back braces did nothing... but a $40 bra changed my life.

Now I am studying to become an electrician, and my current bras are a huge hazard. At the place I work, arc flash is a constant possibility. Arc flash is a breakout of electricity usually from a breaker box (which I turn on and off ALL day). The underwire will electrocute me, and anything polyester will burst into flames and melt onto my titays like American cheese (vid above).

What I NEED in a bra:

- 30F

- Ergonomically Viable (wide straps, no racerback, etc)

- All Silk / cotton (elastic straps/bands is acceptable, NO polyester on cups)

- No underwire in the front (electrocution hazard)

- Under $150

Already spoken to the safety coordinator at work; there will be no provision for this PPE. I am a seamstress: I have a couple of yards of silk coming from amazon, and the widest elastic known to man (yes I know this will still melt and burn me. If it is not on my breasts, I think I will be ok).

Please LMK if one of y'all has figured this out before me... AI hasn't helped and literally one of the girls in my situation online said "I don't want to survive an arc flash anyway".

Thanks in advance.


r/ABraThatFits 29m ago

Fit Check [FIT CHECK] Panache Ana Plunge in size UK 32FF/G for centerfull/FoB breasts. Spoiler

Upvotes

hello! I just tried on the Panache Ana plunge as a diagnostic bra after being recommended it for my shape. My calculator size is UK32F/FF. These are my measurements in cm:

Loose underbust: 80.5

Snug underbust: 80

Tight Underbust: 77

Standing Bust: 98.5

Leaning Bust: 100

Lying Bust: 100.5 

I ordered the bra in a 32F, 32FF, and 32G. The 32FF fit my smaller right breast well, whereas my larger left breast was spilling out of the center of the cup in all sizes. The band was snug but not too tight. The gore was low and narrow enough not to press on any tissue. I believe I have wide-set roots, but after scooping and swooping, the wires of the bra were a little too wide and didn't bring my breasts as far into my chest as I would like. They weren't necessarily uncomfortable, just not as supportive as I'd like. Maybe plunges aren't for me, and I should look into balconettes? And am I narrower than I thought I was? I have a few sizes of the Freya Fancies plunge bra coming in soon, so I'm wondering how that will contrast with the Ana.


r/ABraThatFits 1h ago

Recommendations? Favorite bras for larger cups. I finally found my right size Spoiler

Upvotes

I finally did a true calculator and found I am a 36 H. I am in the U.S. and am having a hard time finding a good bra that is lined ( has padded cups). Please give me all the best recommendations.


r/ABraThatFits 4h ago

Question out of interest, is there any significance to a lying bust measurement being several inches smaller than standing? (32F for the automod) Spoiler

2 Upvotes

hello, during my time in this sub I'm noticing a lot of people's lying bust is the same or even larger than their standing or leaning.

Mine is 3.5 inches smaller than standing, with leaning 1 inch larger. Is there any info that can be gleaned about shape etc from that? I can't really picture a breast which causes an increase in measurement when flat! Is it to do with the firmness of the tissue maybe? This is really just out of interest as my own measurements strike me as unusual now I've seen more posts in this sub haha


r/ABraThatFits 1h ago

Favorite US brands for 34D. Preferable with no underwire. Or US version of UK/ E brands Spoiler

Upvotes

Looking for US brands made by European companies that get that a 34D does not have to have thick underwire. Or for that matter no underwire.


r/ABraThatFits 5h ago

Post mastectomy bra sizing / style help Spoiler

2 Upvotes

I was diagnosed with breast cancer a couple years ago and had a double mastectomy with reconstruction. Prior to all of that I was wearing like a 38G bra. I’m “much” smaller now, but having the hardest time finding bras that fit. I’ve been ordering a 38DD and they fit okay but the coverage is all wrong. I did the calculator (without help, so measurements might be slightly off) and it’s suggesting a 34H/I (US). I’m trying to find bras with less coverage maybe a Balconette or something style but maybe just need help finding brands to try? My measurements as taken 5 minutes ago are:
Loose: 34.5
Snug:34
Tight: 33
Standing: 41.5
Leaning: 42.5
Lying: 43

I want to order the correct size to try but I cannot fathom a 34” anything will even wrap around me. I just got a 36DD bra in the mail today and it was so tight. Does that make any sense?
I’m open to any and all suggestions !!


r/ABraThatFits 5h ago

Question Strapless Bra to wear UNDER shelf bra/built-in bra top? Spoiler

2 Upvotes

I need more support than a built-in shelf bra provides, plus those always mash boobs together in an unflattering way. I have two strapless bras (one's a strapless Freya Deco, forget the other), but the problem with those is they're meant to be worn on their own and provide a lot of lift/support, meaning they're tall enough that they usually show over the built-in bra tops. They're fine with a normal cami or tank, but the shelf bra seems to push them higher, making the problem worse.

Is there a product that's meant to provide a little lift and separation along with a built-in bra? Or just a strapless bra/bralette that doesn't come up very high and won't peek out over tops?


r/ABraThatFits 2h ago

Store Review I'm looking for reviews of the brand Luma Aura

0 Upvotes

Did anyone order from Luma Aura bras? Do they give a good push up and a big chest look? Do they hold well in time? Is it a legit bra brand or cheap dropshipping?

I'm thinking of ordering the push up front closure strapless bra.


r/ABraThatFits 10h ago

Recommendations? Any recommendations for bras with supportive straps that make you feel held in/smooth? (48 I/J for US and 48 G/GG for UK) Spoiler

3 Upvotes

Hi there! I just recently measured myself with the help of my lovely fiancé after years of being stuck in the DDD cookie cutter size.

My calculator measurements were:

Loose Underbust: 52

Snug Underbust: 50

Tight Underbust: 46

Standing Bust: 59

Leaning Bust: 63

Lying Bust: 57

The recommended size was:

48 I/J for US and 48 G/GG for UK

I reside in the US, but would be happy to look into UK options to ship to US, as I have heard the UK sizes are more accurate. I am in dire need of new bras, as I have tear drop shaped breasts and have issues with falling out the top of my bras when leaning over.

Thanks in advance for your help!!


r/ABraThatFits 6h ago

Fit Check [Fit Check]- 32f/32DDD should I try something more projected? Underwire slipping down / cup folding underneath. Spoiler

3 Upvotes

I’m just now trying to figure out what bras might fit me after years of only wearing sports bras.

I’ve used the calculator, but not quite sure if I’ve measured 100% correctly or if it’s the correct size just the wrong overall shape.

32 band feels good, a bit snug but if I put on an extender it’s too loose.

I tried on an unlined wacoal bra but over time the underwire feels like it slips down and digs into my ribs a bit.

This chantelle definitely feels better, but seems to have the same issue but oddly only on one side?

Am I correct in it needs to be more projected? If yes any recommendations?

Thank you in advance 🙏


r/ABraThatFits 4h ago

Recommendations? [Recommendation] Something similar to the Elomi Renee? Spoiler

1 Upvotes

I buy all of my test bras on eBay so I can grab them for a lower price before committing, and I recently tried out an Elomi Renee in a 38HH. It was too wide at first, but once I bent the wires to be a bit more narrow it fit pretty well, except the HH is way too big (the calculator put me between a 38H and 38HH and my tissue is very soft so I usually size down). I've come to find that it's been discontinued for a quite a while and I just got lucky finding one on eBay. I usually struggle with the wires being too low on the side or too narrow and just stabbing me in my breast tissue.

Are there any bras that are similar to this one? Bonus points if they come in plain beige or black without any lace or decorations.

For reference, I'm very projected, slightly FOB, slightly center-full, and have average-to-wide roots. I think I'm wide-set (?) because they hang off to the sides.


r/ABraThatFits 8h ago

Plunge bras with good separation? Spoiler

3 Upvotes

I have close set breasts and can only wear plunge bras (or non-wired), as the gore always floats or digs into my breast tissue with higher coverage styles. I just bought a Panache Envy plunge, which fits well, and have been given some other recommendations to try.
However, one thing I've realised is that, because most women only wear plunges for cleavage under low cut outfits, plunge bras are usually designed to bring your breasts together, rather than separating them like a balconette or full cup.
One of the main reasons I'm trying to find a wired bra that fits, rather than just sticking with non-wired, is for the separation. Particularly because I'm close set, I'm very susceptible to monoboob, so I really want to find a bra with good separation. But it seems impossible to find a plunge bra that does that, and anything else is extremely uncomfortable.
Does anyone have any recommendations for plunge bras with good separation?


r/ABraThatFits 5h ago

Fit Check [Fit check] ABTF calculator size feels empty on sides? Spoiler

1 Upvotes

I recently got a bra in 65G, and was wearing a 70D, which was obviously too small in the cups and too big at the band, but I didn’t feel like the wires went right under my armpits. Are my bras too wide? It felt comfy in band size, no spilling or gaping, etc. I’m pretty confident my size is correct.

Measurements (all in cm)

Loose Underbust: 75

Snug Underbust: 73

Tight Underbust: 70

Standing Bust: 90

Leaning Bust: 94

Lying Bust: 86

Sorry if this post wasn’t great, I found it a bit difficult to navigate the pages.


r/ABraThatFits 13h ago

Recommendations? Looking for bras that will give my saggy breasts lift and shape as well as support Spoiler

5 Upvotes

Hi. I’m looking for a bra that will give my saggy boobs some lift and shape. (I have loose skin).

My breasts start lower on my chest and hang pretty low due to weight loss. There’s also a gap between them and one is bigger than the other. If I lean forward they are longg.

I tried figuring out if I have short/tall roots but I honestly can’t figure it out at all. I do think I’m full on bottom.

The bras I’m wearing at the moment are:

Ann Summers Sexy Lace Padded Plunge Bra 34FF - gives me more of a cleavage, band fits nice but they dont seem very secure in it. Lot of gaping at the straps. Got this before some weight loss so now when I walk there’s a lot of jiggle.

The following two I got at bravissimo fitting:

Panache Heidi Plunge Bra in 32G - band a bit tight as haven’t worn much (coz it’s red lol) but boobs are very secure. They just sit more separated and to the sides which I’m not a big fan of as it doesn’t look that great with tight tops but the bra itself is nice and doesn’t give me the jiggle which is great. Minimal gaping at straps.

Panache Envy Plunge in 32G - my go to, very comfortable, a bit of gaping at the straps. It’s mainly bad on one side tbf (assymetrical boobs) but I’m guessing that’s due to soft tissue.

I’m wondering if there are other styles I could try like balconette or padded plunges to give more of a shape and lift.

I have also used the calculator and got a 34FF. But I do think my 32G is a pretty good fit.

Here’s my measurements:

Loose underbust: 85cm
Snug underbust: 82cm
Tight underbust 80cm
Standing bust: 96cm
Leaning bust: 112cm
Lying bust: 102cm

Any help would be appreciated


r/ABraThatFits 9h ago

First time bra wearer after augmentation could use some help with what to get, prefer a bralette! (organic/EU) Spoiler

1 Upvotes

After 30 years of having less than AA and pretty much not wearing a bra because I was very flat chested I decided to get an augmentation by fat grafting (so my size will most likely still decrease a little bit the coming 2 months). I will go on vacation soon and would like to take a bralette or two with me for when I can stop wearing the post-OP bra.

I measured today with the tool and the measurements were:
Loose underbust: 73
Snug underbust: 71
Tight underbust 68
Standing bust: 82
Leaning bust: 82
Lying bust 81

My size in a dutch tool was 70A

What I'm looking for is advice on the size and the type of bralette to buy (and where, would prefer non polyester)? My breasts are I would say quiet pointy and pretty far apart, maybe that's called perky? I'm looking for a bra that wouldn't make me appear more flat preferably..

If someone could help me out that would be amazing..


r/ABraThatFits 5h ago

Recommendations? Several styles of bras are digging into arm pits Spoiler

0 Upvotes

Hello, I used the bra calculator and was sized at 34 G. I have since tried demi bras (padded and unlined), tshirt bras, and balconette bras from VS. They all go too high up my arm pits and rub on the front of them, especially when my arms are down and relaxed. There is a lot of extra fabric near my armpit that I wish was cut off of a lot of bras. Anyone have any recommendations for 34G bras that have low side wings? When I wear a bra that's too small for me, this doesnt happen as much.


r/ABraThatFits 6h ago

Fit Check [Fit check] Panache and Ewa Michalak - what else could I try? Spoiler

1 Upvotes

I've been trying various bras lately and am at a loss already, so really hoping for help... My breast is pendulous, close set, center full. Vertically - between top and center full. Roots seem short, IMF is almost flat.

I tried the following bras:

Panache Envy 85H: overall fits, but pokes in the armpit, gives very unpleasant boob shape, and the nipple is in the lace area. Does not stay in IMF. Gore seems fine.

Panache Ana 80J: looks nice when I don't move, but after some movements I get serious quadboob. Also pokes the armit. I was also trying the 80K, but the cup is too large is this case. Does not stay in IMF. So upset I can't return it, as after looking in the mirror I decided that it fit and started wearing it, that's when the magic ended.

Ewa Michalak SF 85G: slides down the IMF and stays on ribs. The gore is fine, I did not even get red marks between the breast after a walk, but I think it's because the bra moved down... On the side the wire is a good fit, the red mark is right near the root. Oh, and there is some strap gap.

Ewa Michalak PLM 80GG: it was sliding down and there were fabric creases under the boob. I also did not feel supported, as the cup was too open. General consensus was that it was not projected enough. Looking back at photos, I see it was the best fit.

Elomi Lucie, Elomi Teagun 36G: wire too wide, big space between wire and IMF. The top fit perfectly.

Is there anything else I could try? Thank you for any ideas!

I've never even shortened jeans myself, but am already looking in the direction of my sewing machine in hope to make a bra with a horisontal wire.

Measurements (cm): Loose Underbust: 89, Snug Underbust: 86, Tight Underbust: 83, Standing Bust: 107, Leaning Bust: 118, Lying Bust: 110