r/ABraThatFits Dec 31 '25

AMA - ask me anything about the ABTF calculator! Spoiler

771 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 1h ago

Fit Check Found a bra in my suggested sister size 32e (70f). Does it fit well? Spoiler

Upvotes

So the calculator suggested a 30e/f or the sister size 32dd/e. I tried several bras. The 32dd (70e where I live) was too small. So I tried a 32e (70f) and it’s the best fitting bra I’ve ever had! (I used to wear 34d which rode up in the back and didn’t cover my boobs fully)

Here it is: Chantelle 70F
https://postimg.cc/gallery/Df8FzNQ

I went to lots of stores but unfortunately I couldn’t find any that had a 65G (30F). Should I order some? Or is the 70f perfect?


r/ABraThatFits 6h ago

Discussion What do you actually do when one boob is bigger than the other? Spoiler

6 Upvotes

Serious question for women with noticeable breast asymmetry lol.

Do you just leave them as they are? Size bras to the bigger one? Add padding to one side? Adjust straps differently? Avoid certain clothes?

I've always kind of figured it out myself depending on what I'm wearing, but I'm realizing I've never really heard women talk about what they actually do.

Would love to know what's worked for other people.


r/ABraThatFits 4h ago

Recommendations? Looking for a bra that lifts while also makes boobs smaller Spoiler

5 Upvotes

Hi, my size is 32F/FF. Projected and full on bottom shape. Looking for a post breast feeding bra. Boobs are much lower and bigger postpartum. I want a bra that lifts but also makes them appear smaller. I’m ok with full coverage. I wear a lot of turtlenecks, t shirts. I want something super supportive that keeps everything inside. Currently spilling out of my old third love bra. Also Recs for a good strapless with the same requirements (loft and minimize size). Thank you!

Adding my measurements per help member’s suggestion Underbust Loose- 31-.5” snug- 31” Tight- 29”

Bust Standing- 38” 90 degrees - 42” Lying down - 38.3”


r/ABraThatFits 6h ago

I need help finding a bra style that fits me well post pregnancy/breastfeeding. Spoiler

4 Upvotes

I need help finding a bra style and brand that fits me well now that I’m past all of my pregnancy and breastfeeding days. It’s been 9 months since I stopped breastfeeding and 2.5 years since I gave birth.

Here are my measurements (inches):
Loose: 31.5
Snug: 30.5
Tight: 29.25
Standing: 34.25
Leaning: 35
Lying: 33
Assigned female at birth.
Recommended starting size: 32C/D
I am a petite woman being 5 feet 0 inches with a shorter torso on top of that.

My breast tissue is very soft and bottom heavy with wide roots, but shorter top to bottom. I tried on a few bras today and 32 band felt too tight, but 34 felt okay. I found a balconette bra from Target in their Auden brand in size 34D where the band felt okay and the cups were filled out correctly, but I had center gore discomfort and armpit discomfort from the underwire. Many of the t shirt bras and full coverage bras had gaping at the top where I wasn’t filling out the cup. I do not want a push up bra. Lightly lined is okay, unlined is my preferred.

I don’t know if the band tightness felt uncomfortable because I’ve been in a nursing bra for nearly the last 5 years or if the 32 is actually too tight. I double checked my measurements multiple times too.

If anyone has any guidance on companies, bra styles, or anything that would be helpful I appreciate it. I feel like I’ve tried everything on in target I possibly can.


r/ABraThatFits 7h ago

Discussion Lat/pectoral muscle development and shape Spoiler

5 Upvotes

This is a comment on something I’m still figuring out, so I’m putting it out there more to contribute data/anecdote than to offer conclusions (because I don’t have any yet). TLDR: I think increase in my pectoral and lat muscle development due to weight lifting has changed my shape, and therefore bra fit. Would be interested in hearing from others with their observations on this.

I’ve been lately having more problems with center spillage and empty upper/outer quadrant than I’ve had before. In bras that a year ago didn’t have these symptoms at all, it’s happening a little. And in bras that caused it a little, it’s now gotten worse.

My first hypothesis about the cause of the center spillage was increased body fat, because I’ve put on a few pounds of it in the past year. But the increasingly empty upper/outer quadrant suggests it’s more a change in distribution of tissue than in total volume. In trying to solve the problem I came across this older but very useful thread: https://www.reddit.com/r/ABraThatFits/s/bgKPW3gL8D.

To be clear, my lats and pectoral muscles have not grown to the scale serious competitive power lifters achieve. But where I had virtually no muscle development before (actual question I asked my trainer: “Lats? Where are those?” 😂), I now can feel and see those muscles. And DEXA scans over the past year show that while I’ve put on a few pounds of fat, I’ve also put on several pounds of muscle. My suspicion is since my starting point was a small frame and very little muscle, even the relatively modest muscle growth I’ve had is proportionally enough to change my bra fit.

What I know for sure is bras that a year ago fit right (or close to right) now give me noticeable quad boob in the middle. Which on the one hand is annoying, since I bought a lot of bras on a great sale then and figured I’d be able to wear them for a long time. But on the other hand, I’m glad I’m getting the results I want from my workout program.

My details, for anyone else thinking through similar issues: UK30FF per ABTF calculator and long experience buying British brands that fit (or used to). Fairly narrow, projected, with soft tissue. My band size has not changed. Bra I have on hand that seems to fit best now: Primadonna Deauville in UK30F (their cups feel one size larger than other brands’ to me). Second best: Empreinte Thalia, also in UK30F (ditto the +1 cup size note), but the wires on it are extremely narrow—even narrower than the Deauville’s, and probably too narrow for me. Bras I plan to try going forward: well, I’ll start with the suggestions in the thread linked above, and bras with specs similar to the Deauville on Bratabase.


r/ABraThatFits 5h ago

Measurement Check [measurement check] measured at 32G from the calculator, bra did not fit when trying on Spoiler

3 Upvotes

Hi everyone,

I recently lost some weight and my old size 36H is no longer fitting correctly and has gaping at the top and I have to wear at the smallest hooks.

I remeasured and the calculator put me at a 32G (US). I ordered a Freya Offbeat underwire side support bra in the 32G (US) and it fit one of my breasts okay with very very small spillage out of the top of the cup, and the other was spilling out the top and sides. The bra was definitely snug on the underbust as well, but not painful.

I have wide roots and lack top fullness. Measurements:

Loose underbust: 33 inches
Snug underbust: 31.5
Tight underbust: 29.5
Standing bust: 38
Leaning bust: 41
Lying bust: 40.25

If you have any recommendations for a different size or bra style that would work best for me please!


r/ABraThatFits 2m ago

Fit Check [Fit Check] 30GG puffing over the top edge - Follow Up! Spoiler

Upvotes

Hi all! A while back I created a post asking for fit help. Heres the link to that: https://old.reddit.com/r/ABraThatFits/comments/1vwkkkg/fit_check_30gg_puffing_over_the_top_edge/

Anyway, following up because I've been wearing the Freya Spot-Light bra for a few days. I'm afraid it's going to tear when I am getting settled into it, scooping and swooping. It feels so delicate. The gore DOES sit soooo much better against my sternum than what I was wearing. But, here is my chest bubble-over wearing it: https://postimg.cc/v1Trr1kY/5ae84225 and https://postimg.cc/cv9YLxHf/a6d06f06

I think I'm going to be perpetually disappointed. I feel like I'm just the wrong shape for bras. Feeling frustrated, since these experiments aren't cheap.

Any sugestions?


r/ABraThatFits 52m ago

Recommendations? May Have Found My Unicorn...But Still Help Spoiler

Upvotes

I have ordered (and returned) So. Many. Bras. Got a shipment yesterday and here's what I got:

Cassiopee Seamless full cup - 32H

Norah Seamless Comfort - 32H

Madison Side Support - 32H

Measurements/shape: 30 loose, 29.5 snug, 28.75 tight, 40 leaning, 38.5 lying down, 35 full. My shape is...tubular (but pendulous). Like the teats on a cow's udder. Very soft. I've lost about half my body weight in the last 1.5 year, so they are mostly skin. Pretty much zero shape on top, even in a bra. Nipples are toward the bottom of these tube socks, but they are not on the "ends" when standing; they point out front.

Calculator give me 30FF/G UK, but all the 30s I've gotten are too tight and uncomfortable. I did get a Fantasie Fusion (30G) recently, and it's ok with an extender; the cups seem a bit small as I have to stuff down from the top to get everything within the cup. But it's not painful to wear. So back to the drawing board for some 32s. Always S&S when putting bras on.

Cassiopee got shipped back. Hella expensive, so it needed to be perfect, and it was FAR from that. Way too much space in the tops of the cups. Didn't feel supportive.

Norah seems pretty comfortable while trying it on, and I'm keeping it. I haven't worn it a whole day yet. Breasts all fit in the cups (no quadboob) and the wire seems to be in my IMF.

Madison: hooray! could be the unicorn! I can stuff all my squishiness totally inside; it's on the loosest clasps. There's still a bit of space at the tops of the cups and so there's no "slope" peeping from the tops of the cups (because there's just no way to have any top fullness unless I push things up with my hands). Been wearing it all day, and the only issue is the wires come up really high into my armpits (I have a short torso, only 5'1" high). They aren't quite poking into my pits, but I can feel that they are close. Is there a bra that fits sort of the same but doesn't go so high into my armpits?

I'm grateful for all the experience and wisdom here! I've learned so much from y'all!


r/ABraThatFits 11h ago

Question Why is a 30 inch band a 65 centimetre band in Europe? 30 inches are 75 centimetres, I’m so confused Spoiler

8 Upvotes

I just put my measurements into the calculator:

Loose underbust: 77.5cm
Tight underbust: 76cm
Snug underbust: 74.5cm
Standing bust: 90cm
Leaning bust: 92.5cm
Lying bust: 89cm

It gave me a 30E/F in UK sizing and suggested a 32DD/E might be more comfortable. Most of my current bras are a 34D (75D)

I live in Germany so a 30E would be a 65F here (we go from D to E, there’s no DD).

But here is what’s confusing me. 75 centimetres are 30 inches. Then why is a 30 band a 65 band?? Should I really buy a band that’s 10 centimetres smaller than my underbust? That seems really tight.


r/ABraThatFits 10h ago

Recommendations? Recommendations for very projected UK 32H Spoiler

5 Upvotes

Hi all! I have been on a long bra journey, coming and going a little as finances allowed. I have very projected, center full, even-ish, tall root. I’m also tall with broad shoulders and have had a hard time finding a bra that actually fits. I finally tried panache Cleo blossom in the recommended 32H and it’s the best fitting bra I’ve found. it’s open enough for my roots, almost had enough projection, the wires fit and aren’t too wide. I know panache Jasmine is also recommended, but it’s discontinued. What other bras are out there that fit the projected with tall roots shape? Is it worth it to try Gorsenia? I also have an active job, besides wearing a sports bra, are there any other bra recommendations that will keep my breasts out of the way? Lol.

thanks for all the help!

my measurements are: 32,31.5,30.5, 40,45.5,42


r/ABraThatFits 2h ago

Recommendations? Sports bra for 38K pendulous breasts? Need recommendations Spoiler

1 Upvotes

My typical day-to-day bra is the Panache Envy in the 38K, I also own the Bravissimo Una. I wear exclusively balconette styles, as T-Shirt shaped bras in my size always cause spillage, but balconette doesn't really exist in the world of sports bras. I have pendulous breasts with a shallow root. The girls hang.

I purchased the Bravissimo Inspire sports bra, which wasn't terrible, but was clearly too small. I had spillage over the top, worse for left breast. The underwire was not on my ribs on the sides but resting on my breast tissue. I believe I may need to go up 2 cup sizes to a 38L, which doesn't surprise me because the Panache Envy fits but it has stretch lace, and the fabric of the sports bra is (necessarily) stiff.

Anybody who has breasts like mine have any recommendations? I am struggling to even find sports bras that come in a 38L besides these two.

The Bravissimo Inspire is out of stock in those sizes but they do have the Apollo in a 38L. Has anyone tried the Bravissimo Apollo?

Edit to add: Not necessary for it to be super high impact, as I generally do weight lifting and low-impact cardio. If something exists that can give a great fit, I'm okay with a bit of bounce if I do go play tennis or something once in a while.


r/ABraThatFits 6h ago

Shape Help I want to understand root width and height Spoiler

2 Upvotes

Can someone please explain how exactly to determine the width/height of the breast root? i did read through the resources in the shape guide but I couldn't figure it out on myself.

When considering root height should I check it in relation to the elbow? or distance from the armpit? or the height of the IMF?

my understanding of breast root is the area where the breast attaches to the chest, but for me the crease kinda ends under the breast without really going up much like an underwire would.

so how would I trace it out? would it make sense to lay on my back or push the breast to the side to create the crease and go from there?

and I just can't really understand width. do these considerations only arise wrt how bras fit or is it something independent of that?

I would be really grateful if someone could help answer some of my questions or share any detailed resource if it exists. thank you!


r/ABraThatFits 6h ago

Recommendations? Still trying to troubleshoot underwire digging into ribs issue Spoiler

2 Upvotes

I posted a few weeks ago about the underwire on the Elomi Cate digging into my ribs in a painful way that leaves marks, despite everything else about the fit feeling perfect, and it was suggested that I might need a bra with more projection. I got the Elomi Morgan and at first I thought it was better, but eventually it had the exact same problem. Both of these bras also have an issue where the right side of the band rolls up slightly if I move around too much.

It seems like this might be due to the band being too tight, but I feel like if I go up a band size it won't be tight enough, and I don't think it's a cup size issue because when I do the backward band test, it feels exactly the same as when I'm wearing it normally. I've scooped and swooped and my boobs are fully in the cups with no gapping or spillage, and the wires aren't sitting on any breast tissue and the gore completely tacks, and the straps aren't digging in or sliding down. Everything else feels perfect except for this one thing.

I did the leaning over 90 degrees checks and I'm bottom heavy, wide set with wide roots, projected and pendulous. Do I need to try a different brand/style of bra? I ordered the Panache Allure and it won't be here until the end of September or the beginning of October, but I'm wondering if the Envy would be better. I'm very poor so I try to look for sales on Amazon and that's how I ended up buying both Elomis and the Allure. Would a band extender help? The bands on the Elomi bras don't feel uncomfortably tight, which is why I'm confused about what's going on with them.

I'm so close to the perfect fit. Even with the issues I'm having, this is the most comfortable I've ever been in a bra. I went from wearing a 38DDD to this and if the underwire wasn't causing me discomfort, I wouldn't even be thinking about the fact that I'm wearing a bra, which is something I've heard people say over the years and never believed was actually possible. I just need to solve this one final thing.

My measurements, in inches: Loose underbust: 35 Snug underbust: 33.5 Tight underbust: 32.5 Standing bust: 42.5 Leaning bust: 45 Lying bust: 44

Calculator size: 34J US, 34GG UK


r/ABraThatFits 3h ago

Question I need help finding a bra that gives me lift and cleavage on a wide set chest Spoiler

1 Upvotes

So basically what the title says, I’m a 36B however my boobs are kinda apart.

A push up bra doesn’t give me lift or cleavage. I use sticky bras and while they work I feel like I burn through them so fast


r/ABraThatFits 10h ago

Recommendations? Bra recommendations: seamless, padded, comfortable bra Spoiler

3 Upvotes

Hi! I do not wear bras in my personal life, but unfortunately as a Woman in Society I feel obligated to wear them to work. I am looking for recommendations for a bra or bralette that meets these criteria:

• can not be seen under a tshirt! I tend to wear tighter shirts (like baby tees) and prefer a seamless look
• padded / lined (since the goal is to hide my nipples after all)
• comfortable!!!
• nude color

If it is relevant, my chest is on the smaller side - maybe 32B if I had to guess.

Thanks in advance lovely humans 🫶🏽🫶🏽

Edit: I did some quick & dirty measurements and the calculator recommended a size 28 B/C.


r/ABraThatFits 7h ago

Recommendations? Recommendations for in person stores, ideally with multiple brands (USA east coast Spoiler

2 Upvotes

After using the calculator and getting a significantly different size than I'm currently wearing (34 A to 32 F) I found myself at a mall and decided to try on a bunch of bras. Of course that meant the staff wanted to size me (they got 34 B) and tell me which bra to buy without wanting to hear about "but on Reddit..."

I will say that the 32s were way too tight. Probably because I measured at the actual base of my breast, but most bras go a little lower than that and my ribs flare out a bit.

I'm wondering if anyone could recommend an in person location that is... I don't know... Less judgy? Also, I didn't remember the name of that store, but their bras were generally awful..


r/ABraThatFits 10h ago

Measurement Check [measurement check] 85F is my current size, however the abtf size feels wrong Spoiler

4 Upvotes

I used the bra that fits calculator for the first time since i felt like my current bras fit wrong

I got:

Loose 94cm

Snug 93cm

Tight 89cm

Standing 112cm

Leaning 120cm

Lying 115cm

Got sized into 85H/80L EU

I usually got sized at brafitters as 85E/F and those bras feel very tight in the underbust even on the loosest hook while the cups were spilling slightly, however I'm just wondering if trying a 90 band size bra would be better in this case

I havent been pregnant/breastfed, Im afab and i think my breasts are more projected


r/ABraThatFits 8h ago

Question currently wearing 34B except there’s gaping in the cups and the band is too tight 🥲 Spoiler

2 Upvotes

i'm rlly confused with sizes and have never had a bra fit me since my chest is slightly asymmetrical, my measurements are below + the size i was suggested? i so badly want to order a bra from vs or aerie but cant jump into it too fast being this unsure

loose underbust: 75 cm
snug underbust: 74 cm
tight underbust: 68 cm
standing bust: 79 cm
leaning bust: 85 cm
lying bust: 79 cm

recommended size: 65C EU OR sister size 70B for a more comfortable fit

“However, as this band size is greater than your standing bust measurement, true to size 70 bands may be unstable. Consider snugger bands for increased stability.”


r/ABraThatFits 9h ago

Measurement Check 34DDD/36DD measurement check/ where to start?!?

2 Upvotes

I took my measurements last night. Do I need to redo any?

If not, where should I start? I have tear drop that are full on the bottom. I have a hard time with bras gapping in the cup.
I just finished breastfeeding about a month ago.

I was wearing a 36D prior. I guess I wasn’t too far off!
Should i try the DDD or try the 36 DD first?

US measurement
34/33.5/32/39/40.5/39.25
34DDD/F
sister 36DD/DDD


r/ABraThatFits 17h ago

Measurement Check Trouble finding a bra as a fat person with smaller, tubular boobs Spoiler

9 Upvotes

EDIT: (Bra size is US)

Measurements:

Loose underbust: 100 cm

Snug underbust: 97 cm

Tight underbust: 95 cm

Standing bust: 109 cm

Leaning bust: 116 cm

Lying bust: 112 cm

Hello! I recently took my measurements for the calculator, and it gave me 38DD. I’m not sure this is correct, though, since my boobs are pretty small for my size. I don’t need much support unless I want shaping for a nice outfit.

I’ve always struggled finding comfortable bras, since apparently fat people aren’t allowed to have small boobs (according to clothing companies). And I really have no idea what size I should be now, except that the size I was in (38-40 C) doesn’t fit anymore. Pregnancy and postpartum have changed the shape of pretty much every part of my body.

It doesn’t help that I have sensory issues, and absolutely cannot stand underwires. Or that I live an hour away from the nearest mall, which is a logistical nightmare with a baby whose wake windows are still less than 3 hours long . . .

I’ve tried ordering online from Thirdlove and Huug with no luck.

Any advice on whether I might have taken my measurements wrong or where to look online for a comfortable, wire free bra would be much appreciated!


r/ABraThatFits 7h ago

Question I'm confused about bra sizes and how they work. Spoiler

0 Upvotes

So I have a few 36DD Bras but they all fit differently on me. One has a band that's way too long for me and the other is just short enough for me to use the farthest teeth to secure it.

This is why it's so confusing for me to know what bra size I am


r/ABraThatFits 9h ago

Where can I find affordable bras for a size 28a? Spoiler

1 Upvotes

r/ABraThatFits 22h ago

PSA EV Casting Call - K cup or larger welcome

Thumbnail facebook.com
9 Upvotes

Finally some inclusive marketing and advertising for EV!


r/ABraThatFits 9h ago

Question Confused about my actual size because of a weird size conversion from EU to UK – CHANGE lingerie brand 85E EU – 38E UK. Conversion charts and the ABTF calculator for 38E UK gives me an EU equivalent 85F/G Spoiler

0 Upvotes

First of all, I like to say that I am very thankful this sub exists because I finally realized I’ve been wearing a wrong sized bra my whole life but those days are over now!
I recently went to Barcelona and used this chance to visit a store that was recommended in this sub – Change Lingerie, to try out bras in the sizes given by the calculator (36F or 38E UK / 80G/H or 85F/G EU)
My 6 measurements are:
Loose underbust - 94cm (ca 37”)

Snug underbust – 91cm (35,8”)

Tight underbust – 88cm (34,65”)

Standing bust – 107cm (42,12”)

Leaning bust – 111cm (43,7”)

Lying bust – 104cm ( 40,95”)

Since the main size was the EU one, I tried the 80G and 85F but those did not fit me, so the fitting lady insisted on me trying the 85E. This size fit perfectly across multiple bras I tried on, and I was confused why it is not the same as the calculator. Turns out that the UK size conversion written on the bra labels were all 38E which correspond to the size given by the calc.
Now that I am back home, I want to order some bras from the brand Lisca, since they seem like the only ones carrying a wide range of bra sizes and bra types. The thing is that all the sizes are listed as EU and I am unsure which size to choose – 85E or 85F. On top of that, their own “size guide” puts me at 90C again – the size I was wearing previously and always had issues…
I know the best thing is to just go directly in the store and try them out, but the problem is that there are a looot more options for the size 85E than there is for the 85F, plus the local store in the nearest town from where I live has a more limited selection than the one in the capital city and that is why I wanted to order online.
Does anyone have experience or recommendations regarding this issue? Which size conversion should I trust? Size conversions are all very confusing...