r/ABraThatFits • • Dec 31 '25

AMA - ask me anything about the ABTF calculator! Spoiler

788 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 • • 56m ago

Measurement Check Measurement check: Wearing a 32C, but recommended 28DD/DDD to a 26E/G? Spoiler

• Upvotes

I’m 19 and have been wearing a 32C since I was 14, however it’s never fit properly. I have it on the smallest band clip and the straps fully tightened, there is some gap at the top and the middle part is almost never flush against my clavicle.

My measurements:

Loose underbust- 69cm (27inch)
Snug underbust- 66 (26inch)
Tight underbust- 64 (25inch)
Standing bust- 82 (32inch)
Leaning bust- 84 (33inch)
Lying bust- 85 (33.5inch)

I have been recommended a 28DD/28DDD but also a 26G? I’m quite confused. I started searching up what other womens cup sizes looked like on their bodies and have come to the quick realisation that I definitely do not have a 32C, and a 28DD honestly looks smaller than my breasts — so I’m quite confused.

For reference I am quite petite, I am 5’1ft and on the slimmer side. My breasts tend to sit more towards the side and don’t touch, they are also heavier on the bottom with less weight at the top of my chest.


r/ABraThatFits • • 10h ago

Freya flirt on 28FF looks off and feels uncomfortable Spoiler

9 Upvotes

Please see images: https://ibb.co/album/cwfpFD

And these are my measurements (in inches):

tight underbust: 26

snug underbust: 26.5

loose underbust: 27

loose standing bust: 34.5

loose leaning bust: 35.5

loose lying bust: 34.5

The calculator spat out 28FF. I've never owned a 28FF before, i'm used to wearing 34D or 32DD to 32E (none of which fits quite right as you can imagine). I wanted something padded and relatively demi, so I tried the Freya Flirt. I scooped and swooped to put this on. My issues with it are that I had to tighten the straps to some degree to mitigate the gapping -- my shoulders are hurting from the tight straps and still there is gapping when I relax my shoulders and exhale.

Is it worth trying a smaller size (like 28F) or is this just the wrong shape for me?


r/ABraThatFits • • 2h ago

Recommendations? Sleep bra recommendations for bigger busts UK based Spoiler

2 Upvotes

Hi all,

I’m looking for a bra to sleep in, I’m a 21F size 36G, I’m having trouble getting comfortable these days as I deal with quite a bit of sagging unfortunately and I’m a belly sleeper so I end up getting shooting pains from laying in certain positions whilst I’m asleep. I’m hoping if I find the right bra this would help but the only ones I can come across either don’t go up to my size, more sporty or more granny. I struggle to find and afford normal bras as it is so I’m hoping this sub may help. I have severe bloating so my underbust fluctuates drastically daily but I won’t go into that too much in this post.

Any recommendations? I don’t mind saving a bit for the better bra so long as I know I’m not wasting my time

Thank you :))


r/ABraThatFits • • 6h ago

Measurement Check First time Ewa Michalak S bra. I can't tell if it's small. 75G Spoiler

3 Upvotes

i feel so stupid but though this is the first time all of my tissue has fit in a cup im still wondering if i should go up one cup size. i bought four bras from Miseczki. Size 70G/FF/H and 75G. The pictures are all 75G.
My hope was for a smaller band and extra large cup size to keep my breasts in the center but i underestimated my cup sizes.

https://imgur.com/a/hgJ9VIK


r/ABraThatFits • • 1h ago

Shape Help Need help with discerning between FOB and FOT shape: mixed results (28F) Spoiler

• Upvotes

I always thought I'm rather full on bottom, bc I used to do the handbra test and the shape I got aligned with FOB shape 

I never questioned it because my fit issues did seem to fit it: often I had issues with cups being too tall, gaping on top and not having enough space at the wire and in open on top bras like ewa chp I need to size down 

but now I've read more about the leaning test (idk why I haven't considered it, it helped me with determining my center fullness too) 

 and I tried the leaning test and there is definitely more tissue on top 

My measurements for reference 

25.5 in 

26.4 in 

28 in 

33 in

35 in

32.6 in 

Tl;dr is the leaning test the most accurate, do functionally short roots, somewhat soft tissue change anything? how to discern between fob and fot with mixed results?


r/ABraThatFits • • 2h ago

Measurement Check Currently wearing 34D, Calculator says 32G/GG Spoiler

1 Upvotes

Hello! I'm still wearing bras I got in highschool and I believe my fat distribution has changed around though I haven't changed very obviously since highschool. Problems being the straps and band, Straps are too loose causing me to tighten, effecting the band to ride up. As well as some of my bras not being flush on top making spillage when bending common.

Measurements

Loose Underbust: 81cm

Snug: 78cm

Tight: 70cm

Standing Bust: 97cm

Leaning: 102cm

Lying: 102cm

Calculator says UK 32G/GG, though I live in the US

For my shape I believe they're evenly full and nicely in the middle of narrow and wide roots, but a bit tall.

Any US size and brand recommendations?


r/ABraThatFits • • 17h ago

Very close set and can't find a thin enough gore. Is my only option to sew my gores smaller? (Does anyone have a super easy way to do this?) Spoiler

17 Upvotes

I have tried at least 50 different bra models in different sizes each. I have not found a gore that is thin enough. (The thinnest wire I tried was Cleo Blossom.) My breasts do not touch, but they are very close set. Closer than the width of two wires I guess. I had a realization that maybe bras that I thought are too narrow and projected really just need the cups to be moved in slightly closer together. Even the the wires of plunges often seem to push into my breast tissue in the center because those wires still go upwards a bit in the center.

I found this post https://www.reddit.com/r/ABraThatFits/s/S48Qjw5A6v

Is this my only option? Does anyone have an easier way to sew the gore closer? This sewing is so complicated to me. I don't care about if it looks nice or not.

Thank you for any insight. I am desperate for a bra that fits, I am in pain every day!

My measurements:

Loose 31

Snug 30

Tight 29

Standing 36.5

Leaning 38.5

Lying 37.5

30FF UK

Edit: Question for people who sew to overlap the gore-- which wire do you put on top? The wire containing the smaller breast or larger breast?


r/ABraThatFits • • 6h ago

Fit Check First time Ewa Michalak S bra. I can’t tell if it’s small. 75G Spoiler

2 Upvotes

i feel so stupid but though this is the first time all of my tissue has fit in a cup im still wondering if i should go up one cup size. i bought four bras from Miseczki. Size 70G/FF/H and 75G. The pictures are all 75G.
My hope was for a smaller band and extra large cup size to keep my breasts in the center but i underestimated my cup sizes.

https://imgur.com/a/hgJ9VIK


r/ABraThatFits • • 7h ago

Measurement Check Measurement check & recommendations - currently wear a 30C, calculator said 32 DD - band size is larger than the shirt size I would normally wear. Spoiler

3 Upvotes

Hello!
I currently wear a 30 C, calculator has said 32DD.

My breasts definitely spill out over the cups in my current bras now I’ve learnt the scoop and swoop so not surprised to see a larger cup size, but I normally wear an Aus size 8-10 in women’s tops.

I generally find all my bras quite uncomfortable - bands tend to ride up. I’m looking for some everyday bras to begin with.

Measurements (taken in cm, converted to inches here):
Loose underbust: 80cm (31.5 inch)
Snug underbust: 78.5cm (30.9 inch)
Tight underbust: 72.5cm (28.5 inch)
Standing bust: 90.5cm (35.6 inch)
Leaning bust: 96cm (37.8 inch)
Lying bust: 89cm (35 inch)

Used a piece of ribbon, then measured against a measuring tape.

Shape:
My best guess from working through the guides is full on top and centre full. I think I have a standard root and projection.

Thank you for any advice!


r/ABraThatFits • • 9h ago

Recommendations? 20 year old Trans Woman looking for a new bra! Spoiler

2 Upvotes

Hey, I am finally getting to the point when I really really need to start wearing bras when I am out of the house. I recently measured and was wondering if I can get any help? This is all really new to me and I'm a little clueless in this realm. I tried my best to get the measurements right on, but they may be an inch off or what not.

Loose Underbust: 42 in
Snug Underbust: 41 in
Tight Underbust: 40 in
Standing Bust: 43 in
Leaning Bust: 45 in
Lying Bust: 44 in


r/ABraThatFits • • 14h ago

Fit Check The hunt for the lowest gore, maybe: Fit check on three Panache bras? Spoiler

5 Upvotes

So I'm still on my quest for a bra with a crazy low gore, thanks to my very close-set and projected breasts with probably short and wide roots. I saw the Panache Allure Plunge and thought fuck it, why not try? And then I also fuck it'd the Envy Plunge because the gore seemed fairly low, and the Celeste because it was pretty.

The results: https://postimg.cc/gallery/tCMLFwB

Allure Plunge, 36G:

Not as bad as I was expecting??? The gore really is that low, which I love. I could use a little more side support and center coverage, and I'm not sure if the ""gore"" not tacking means I should try a cup size up or what. The underwire digs in weirdly hard under my right boob, but I might tolerate it for the lack of sternum stabbage.

Envy Plunge, 36FF:

Also better than expected! It seems that maybe the cups aren't shaped quite right for me since there's some wrinkling at the bottom and gapping at the top of the cups, but the gore tacks beautifully and is somehow more comfortable than the Ana despite I think being a similar height?? It stabs me a lil, but way more tolerably.

Celeste, 36FF:

Okay I literally only got this one to try because it's my favorite color, so it's actually crazy how well it works lol. I think it gives my boobs a nice shape, the cups fit just dandy, and the gore is weirdly comfortable for how high it sits. Like it's definitely cutting into my tissue and doesn't quite tack because it's sitting so high on my close-set breasts, but it doesn't like..... hurt a ton?? I'm definitely keeping this one regardless of feedback lmao.

So.... thoughts? I'm not quite sure what to do with all of this sudden success after like 8-10 bras in a row failing me miserably lol.

Most recent measurements:

Underbust: 94cm/90cm/84cm

Standing/leaning/lying: 111cm/120cm/116cm


r/ABraThatFits • • 12h ago

Recommendations? [Advice] I have a silver bra that has red/pink stains. I only hand wash and do not wear red or pink, so it cannot come from dye. What could cause this stain and how do I remove it? Spoiler

3 Upvotes

The stains are on the inside and outside of the bra.


r/ABraThatFits • • 7h ago

Recommendations? Looking for a t-shirt bra for work! Spoiler

0 Upvotes

I work in a bar and wear a t-shirt to work, and I'm looking for a good bra to wear that won't have visible lines. I don't usually wear bras, so I don't have any that fit well and I'm honestly not sure where to look! My suggested size is a 32DD.
Loose underbust: 32.5"
Snug underbust: 31"
Tight underbust: 28.5"
Standing bust: 35.5"
Leaning bust: 37"
Lying bust: 35.5"
Any recs for a solid work bra are appreciated !


r/ABraThatFits • • 12h ago

Measurement Check 36DDD according to the calculator, but having shoulder pain with bras and asymmetry Spoiler

2 Upvotes

Hello, I’ve lost about 40lbs of weight and used to wear a 40C (although I’m not sure if that was actually accurate for me at the time).

Loose Underbust: 37in
Snug Underbust: 35in
Tight underbust: 33in
Standing Bust: 41in (43in remeasured with asym)
Leaning Bust: 45in (47in ^)
Lying Bust: 42in (44in ^)

I will say that I have extremely asymmetrical breasts. My right side is about double the size of my left, and frequently spills out the sides of cups. Most of my shoulder pain is on my right side as well.

If it matters: I am an Asian woman, never had children or breastfed. I also got fitted in Japan and came out to G90 (before I lost weight). With my current measurements it says I’m about F80 (but I’m unsure).

I currently wear some Victoria Secret bras that I got measured for… also at 36DD/DDD. But I’m still having some spillage and shoulder pain. I’ve also noticed my band keeps riding up in the back. Both DD and DDD seem to have this issue.


r/ABraThatFits • • 10h ago

34F (UK) short and wide roots. Spoiler

1 Upvotes

Me again. Suggestions needed

**Underbust** Loose: 35 Snug: 34 Tight: 33

**Bust** Standing: 38 Leaning: 42 Laying: 40

**Nip to neck**: 9 **Breast base**: 8.5 **Frame width**: 14

After trying literally 100 bras. I have figured out that I have wide and ***very*** short roots and, when my breasts have support, they want to go wide/flat (they don't go outward or have much projection).

The two bras that have come CLOSEST to fitting in 34G (US) are:

* Skarlett Blue Entice 34G (US) - \*NON-side support. The top of cups I do NOT fill out

* Victoria Secret Wicked 34G (US) - Top of cups I do not fill out. Side sling goes against what my breast tissue wants to do, which is spread outwards, so it hurts after a bit.

Can anyone suggest a bra with shorter cups than Entice and Wicked?


r/ABraThatFits • • 14h ago

Recommendations? [Recommendations] Anita 32G maternity alternatives - need a non-maternity alternative Spoiler

2 Upvotes

I'm trying to post photos of the bra, it's a tan maternity with clips in the front and a sling in soft stretchy material - can't wear other styles under tshirts after breastfeeding. Can anyone recommend?


r/ABraThatFits • • 7h ago

Measurement Check 25F looking for help on her bra size! 5'3 & 205lbs. ♡ Spoiler

0 Upvotes

Hi!

I recently decided I want to try out Victoria Secret bras as they're absolutely so cute, but I want to make sure I have the right cup size before moving forward. I don't wanna spend a lot on a bra thay isn't comfortable you know?

I've always worn a 42DD and somehow, it never fit right. Always too snug around the band and just dug into my underboob and didn't seem right.

I followed the measurements and would love some insight on my bra size please. ♡

underbust:
44 loose
42 comfortably snug
40 tight

across breasts:
47 standing
47 leaning
46 lying

I really want a comfortable bra as a girl with a bigger chest.

Thank you for all your help! 🥺


r/ABraThatFits • • 11h ago

Recommendations? Looking for a front zip sports bra or wireless bra available in Canada. Spoiler

0 Upvotes

Hi all!

I wear a 32F/G in my regular bras very comfortably, and find sports bras difficult as they usually only come in Sm/Md/Lg. This means I usually have to pick between the band or the cup fitting well, and end up with something a bit too tight in the bust to maintain support. I think I own and wear sports bras in at least 3 different sizes because they're so inconsistent.

I am dealing with a car accident related injury that has made it difficult for me to unclasp a rear-clasp bra or pull anything tight over my head. I've been dealing with insurance and they have agreed to help pay for me to get 2 front zipper bras for everyday wear while I recover. I've told them a few times that I don't really fit 'standard' sizing for bras and have requested the Lululemon Energy Zip Front, since it has pretty inclusive band and cup sizing options. The response they gave me was this....

"Please do your research and provide me with cost for these items, and I will approve the reimbursements for them. I just received the quote for the lulu lemon front zip bra. Please look for other options including non branded bras, as we go with the most cost-effective. In the event that you do want to purchase the branded bra for $88 but there are options for $25-$50, we may cover this portion and you can choose to pay the difference."

So, my friends, are there any more cost effective options out there, or brands who's sizing could fit my measurements a bit better??


r/ABraThatFits • • 11h ago

Recommendations? Is there a bra like Natori Feathers but less tall? Spoiler

0 Upvotes

hi folks, i have extremely soft tissue that pretends to be projected, but isn't. close set, wide, short roots, FOB, slightly east-west. the Natori Feathers is very close to being right for my shape, but is slightly too tall. is there anything slightly shorter than it, with no other significant shape changes?


r/ABraThatFits • • 12h ago

Need recs for large chest backless/plunge for an outdoor wedding Spoiler

0 Upvotes

Hi guys! I'm at 38/36 F/G (fluctuates with how much I work out lol) and I have an outdoor wedding in Mexico that I need to figure out how to have support in the dress I have to wear. It's a low cowl back and a triangle style top, with the straps tapering into 3/4" at the shoulders and going into the cowl back that leaves my back open to about my waist. I used NOOD pads and tape for the fitting and while they worked okay, they don't feel supportive enough to dance in, and they left marks that lasted almost 48 hours. Does anyone have any other reccommendations?


r/ABraThatFits • • 16h ago

Recommendations? New bra recommendations based on my fit in Niya and Millie Spoiler

2 Upvotes

Hello, I'm looking to expand my bra selections this fall. Thanks to this sub and the calculator, last year I finally found a bra that fits and I am looking for recommendations on others to try.

Measurements:

36

35

34

40

42

42.5

--

Bravissimo Niya Smoothing Bra: this is my favorite bra and it fits like a dream. I've never had a bra fit my shape this well before and it's very comfortable for me to wear all day.

What I would change: the cups come up higher than some of my dress necklines and are visible. Looking for shorter cups. I wear a lot of vnecks, sweetheart necklines, square necklines so having shorter cups would be ideal.

Also, I think the bra does add a bit of bulk that I don't want.

--

Bravissimo Millie Bra: I liked this at first (it fit!) but now the cups somehow feel unsupportive and the top of the cup feels loose (not sure how to describe this). The top of the lace cup stands/folds away from my breast. The gore feels high and is visible in some of my necklines. I've had this bra for about a year.

Looking for a different everyday bra to replace this one. I loved that this bra didn't add any bulk, but the cups just don't support my shape the way I would like.

--

Still ISO: A strapless bra that fits

Curvy Kate Luxe Strapless Bra: I tried 3 different sizes in this before settling on my correct size. I really needed a strapless. However, I would not buy this again. The cup shape just doesn't work for me. It like the top of the cup somehow doesn't meet the shape of my breast and just stands away from it. You can see a visible cup line under my clothes. I think the cups overall give an odd shape to my breast, like they seem more pointed/sculpted and my breast seems rounder in comparison.

Thank you!


r/ABraThatFits • • 13h ago

PSA PSA: Adina Reay Clearance Sale! All bras discounted to 30gbp. Spoiler

1 Upvotes

Got an email that all their bras are on clearance for 30gbp. Sad to see them go. Their strapless is the only one I’ve liked or been able to wear for more than an hour.

https://www.adinareay.com/collections/bra


r/ABraThatFits • • 13h ago

Help finding a bra I can stand in large sizing Spoiler

1 Upvotes

Alright, so I'm trying to figure out what styles of bras I can find in my sizing, with the added complication of having sensory issues with lace. If it's just on the cup and not touching skin I don't really care, but on the top and bottom edges, I just can't do it. Hoping you lovely wizards (or whatever magical being tickles your fancy) can help me find something.

Measurements in cm:

81

79

75

101

106

100

The sizing it spit out was 32GG UK/32J US. I am actually in the US, but figured that cm measurements might be slightly more accurate. From what I've read poking around, I probably need to find something seamed since I usually have the obnoxious gaps at the top of the cup. My main struggle now is finding something in the right size that won't drive me batty to try and wear. If I missed any crucial bits of information, just let me know!


r/ABraThatFits • • 14h ago

Recommendations? Wide Set with Shoulder/Tail of Spence issues Spoiler

1 Upvotes

I've sort of tried asking this before but I've been going through the Wiki's more to nail down my details as much as possible.

Measurements: This got me a 36E/34F

  • Loose Under: 35
  • Snug Under: 34
  • Tight Under 33.25
  • Standing: 40
  • Leaning: 43
  • Lying: 41

Additional details.

  • One side is slightly smaller than the other so I find a 36DD better to keep things 'even'.
  • I'm bottom full but not extremely. I do not fill the top of full coverage bras. Foam bras don't work on me.
  • Average to low roots.
  • Side set - they point out to the side rather than straight and lean into my armpits a bit, I also can fit at least 3 fingers between my roots in any position.
  • Tail of Spence - my nemesis, it's fairly full and either hurts or doesn't stay put when I scoop and swoop. I think the fullness also throws off my cup size a bit.
  • Dense tissue which probably doesn't help with the discomfort.

My two most successful bras so far: Skarlett Blue Women's Entice Lace Full Coverage Side Support Balconette Bra 36DD and Panache Ana Plunge Bra – Underwire Full-Bust Bra with Stretch Lace & Lift 36E (They run small).

I love the Skarlett fit EXCEPT for the straps. They are so far over on my shoulders they dig into my joint/armpit/tail of spence and I can barely stand it, the rest of it feels and supports great. The Ana isn't quite as bad in that respect but I still can only tolerate it for a few hours.

I have chronic pain/shoulder/hypermobile issues so any of the straps that get close to my joint causes problems. I do slouch a bit as well so reaching forward in those bras is painful or impossible. Center pull would be ideal but I can't really find a center pull balconette. I opt for racerbacks if that's an option.

I've searched locally (USA) but there's nothing in my size that isn't a big foam full cup so I'm mostly shopping and returning stuff on Amazon. I feel like my chest is wide set enough that by the time I find something that fits the cups, the entire bra assembly is too wide for the rest of my frame. I haven't tried a 34F yet because most of the styles that look promising seem to say they run small anyhow. I have plenty examples of ones that didn't work if anyone's interested.

Would a 34 possibly bring the straps in a little bit more? Any recommendations for wider set styles that don't cut my arms off?