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Please note: This scale is meant for fictional breast sizes, particularly those in anime. While it's possible to use this for comparing real life sizes, I would strongly recommend against it. Why? The sizes have noticeable gaps between them, making it easy to distinguish from one another, and as a result, the smaller sizes don't have the minute measurement differences that they do IRL. If you still feel the strange urge to use anime drawings as a reference for real life, I'd suggest that you disregard all the sizes past the warning strip, and bring every remaining size starting from Petite down a step. So "Petite" would become "Small", and would end with "Big" now being "Huge". "Petite" wouldn't exist anymore with this edit. So you'd end up with naming the first half as Flat, Small, Normal, Large, Big, and Huge.

What is the B.R.A.? No, it's not that Battle Ready Armor thing. It stands for any and all of these:

- Busts Regarding Anime
- Breast Reference Appendix
- Boob Rendering Accessory
- Bosom Research Account


This is basically the ultimate version of the original "MOS" that I've been tweaking over the years. I've had a high tolerance limit this whole time, but I haven't been comfortable drawing them; my limits haven't been getting bigger, just my confidence in drawing them. This chart is based off my personal views, and as such won't be universal (you might think Small is Normal, or Huge is Big, etc).

The BRA is split into four parts for each size: Description, Matt's Two Cents, At a Glance, and Reference. The Description is self explanatory. Matt's Two Cents are my own views on the subject. At a Glance is the smaller box, and has a simple doodle, while the Reference is the bigger and more basic image.

In general, I've noticed artists have three ranges when it comes to breast sizes: ability, preference, and tolerance. Ability being how far they can draw comfortably, preference is how far they find appealing, and tolerance being the absolute biggest they can handle before being turned off. Everyone's ranges are different, so don't sweat it if you don't agree with my tastes.

The girls in order from start to end: Sepia, Pyre, Otome, Claire, Nenoko, Mattie, Lass (hurr), Otome unwrapped, Rain focused, Meushi Mattie for the rest.
Add a Comment:
 
:iconlovemypuppy22:
Lovemypuppy22 Featured By Owner Apr 12, 2017  Hobbyist Filmographer
Large and Big are what i like ^^::
Reply
:icontheecchilover:
TheEcchiLover Featured By Owner Mar 26, 2017  Hobbyist General Artist
Massive and Xtreme are my favorites, nice Work! ♥
Reply
:iconshinyguy909:
Shinyguy909 Featured By Owner Feb 10, 2017
I understand how to draw breast size
Reply
:iconkrontriolle:
Krontriolle Featured By Owner Dec 26, 2016
Yo wtf anything after large that's not the inflation fetish is an sign to get an breast-reduction surgery 
Reply
:iconcookiecat-xp:
Cookiecat-XP Featured By Owner Jan 24, 2017  Hobbyist Digital Artist
You do know that this is a Busts Regarding Anime reference, so
 it's referencing non-fictional sizes of women's breasts.
Reply
:iconkrontriolle:
Krontriolle Featured By Owner Jan 24, 2017
Yeah, really? No shit, sherrlock. It's not like I saw the breast inflation fetish art on the side, that he's done, or the fact that it literally says "giant breast sizes" caution in the artwork. Good thing I have you to state the obvious. Also, it's not like I've put his art in my folder of cringy fetish art, as well. God, I'm just so happy that I have an smartass like you pointing out the obvious without thinking about my comment yourself. Just look down on the ground and go back to favoriting your rapist yandere SNK fanfictions, okay?
Reply
:iconcookiecat-xp:
Cookiecat-XP Featured By Owner Edited Jan 25, 2017  Hobbyist Digital Artist
Ok, I wasn't even trying to start a heated debate with you, I just wanted you to know that it's just a reference for fictional breasts. If you don't like it just move on and you don't need to be so rude. I've thought long and hard to not sound like an idiot but, no you wanna call me an ass just for saying a simple reply on your comment because you're connecting it with real life when it said in the description it's reference to breasts regarding anime. So, sorry if I made you mad,
But before i finish i like to say,I like to read Yandere books and I don't even pay attention to the rape part, you have your dislikes and likes as I do, so don't judge me for that or try to insult me with it. I don't need you to call me an ass and a smartass or a Sherlock, I'm going through enough shit as it is, so please don't insult and once again I'm sorry I made you mad. Goodbye
Reply
:icontrampstampoverdrive:
TrampStampOverdrivE Featured By Owner Mar 12, 2017  Hobbyist Artist
Don't bother with him. The guy above you is a faggot anyway, so what difference does it make?
Reply
:iconkrontriolle:
Krontriolle Featured By Owner Jan 28, 2017
k
Reply
:iconsuper-knuckles:
Super-Knuckles Featured By Owner Dec 21, 2016
be careful, it could be explode!
Reply
:iconrobereth:
robereth Featured By Owner Nov 15, 2016
It's like I don't even belong, scrolling through the comments with people being like "Zenith is my fav" I'm over her like " I like petite-large"
Reply
:iconmatsu-sensei:
Matsu-sensei Featured By Owner Nov 16, 2016  Hobbyist Digital Artist
You're in the wrong neighborhood, sorry.
Reply
:iconshadowtoast102:
shadowtoast102 Featured By Owner Oct 6, 2016  Student General Artist
I think Huge is the biggest I can go without acknowledging the breasts as entities that are entirely separate from the girl, thus turning me off.
Reply
:iconson-of-rome:
Son-of-Rome Featured By Owner Sep 10, 2016
Lovely guide and agree with much of the commentary
Reply
:iconspeciesunkn0wn:
Speciesunkn0wn Featured By Owner Jul 28, 2016
Chest pillows! yes!!
Reply
:iconpamvllo:
PAMVllo Featured By Owner Jun 14, 2016
This is pretty funny.
Reply
:iconurmomis:
urmomis Featured By Owner Feb 29, 2016
Im petite to small and I'm 15 but Im cool with it
Reply
:iconthe-fandom-trash-kid:
The-Fandom-Trash-Kid Featured By Owner Feb 29, 2016  Hobbyist Digital Artist
Irl I'm a huge and 13 *sighs*
Reply
:iconcarmi-kitty:
Carmi-Kitty Featured By Owner Mar 30, 2016  Hobbyist Traditional Artist
Omg the hell you are not XD
Reply
:iconthe-fandom-trash-kid:
The-Fandom-Trash-Kid Featured By Owner Mar 30, 2016  Hobbyist Digital Artist
Unfortunately I am Double D's. My friend's an A cup and jealous of me. I've said to her "I'd trade boobs with you if I could"
Reply
:iconcarmi-kitty:
Carmi-Kitty Featured By Owner Mar 30, 2016  Hobbyist Traditional Artist
Even so, double DD are not that large, or Atleast as big as the size you said on the chart
Reply
:iconallman08:
allman08 Featured By Owner Jul 22, 2016
Here, most of the girls are c cup and bigger. The girl in my class had pretty large size herself.
Reply
:iconcarmi-kitty:
Carmi-Kitty Featured By Owner Jul 24, 2016  Hobbyist Traditional Artist
Still, c cup isn't that big, or Atleast not nearly as large as the " huge " sized boobs. Really the only way to get that is via surgery, Photoshop, lying about your size, or having extreme amounts of fat on your body
Reply
:iconallman08:
allman08 Featured By Owner Jul 24, 2016
Or eat a lot of chicken.
Reply
:iconcarmi-kitty:
Carmi-Kitty Featured By Owner Jul 24, 2016  Hobbyist Traditional Artist
Eating a lot of chicken won't make your boobs go that big, anyway not all chicken has injected growth hormones haha
Reply
(1 Reply)
:iconarandomguyidk:
arandomguyidk Featured By Owner Feb 16, 2016
Irl large to huge
Reply
:iconbendybuns:
bendybuns Featured By Owner Jan 3, 2016   Digital Artist
Excellent
Reply
:iconmorkowdragon:
MorkowDragon Featured By Owner Dec 27, 2015  Hobbyist Traditional Artist
I love Normal - Huge!!!
Reply
:iconpootisofpower:
Pootisofpower Featured By Owner Dec 2, 2015  Hobbyist Writer
*sees Taboo* those tits are microscopic compared to the tits of my character Jessica 
Reply
:iconmickey16:
mickey16 Featured By Owner Oct 17, 2015
My fave is Massive.
Reply
:iconart-2over2:
ART-2OVER2 Featured By Owner Sep 4, 2015  Student Artist
Seem's…… catchy……
Reply
:iconiamaholydiver:
IAmAHolyDiver Featured By Owner Aug 24, 2015  Hobbyist Artisan Crafter
Matsu, in your mind, how many cm do you think each boob sizes are?
Reply
:icongoliathdoesflash66:
GoliathDoesFlash66 Featured By Owner Aug 17, 2015  Hobbyist Filmographer
I usually just draw the normal ones. lol
Reply
:iconmatsu-sensei:
Matsu-sensei Featured By Owner Aug 17, 2015  Hobbyist Digital Artist
It's all good.
Reply
:icongoliathdoesflash66:
GoliathDoesFlash66 Featured By Owner Aug 17, 2015  Hobbyist Filmographer
XD


I like your profile pic c:
Reply
:iconpikachu7252:
Pikachu7252 Featured By Owner Aug 8, 2015
Is it bad that I think huge huge is normal?
Reply
:iconred10002:
red10002 Featured By Owner Jul 14, 2015  Student General Artist
next stage after taboo is the great crush. Her breasts get so big it crush the universe into one pont make a black hole that is bigger then any recorded black hole and over time she gets sucked into it until the black hole closes on its self. Oh and if you do request I would love to see my oc grow to about the size of taboo because I get the feeling you don't like drawing them that big
Reply
:iconpootisofpower:
Pootisofpower Featured By Owner Dec 2, 2015  Hobbyist Writer
I've made a character with bigger boobs than the one you just said
Reply
:iconred10002:
red10002 Featured By Owner Dec 3, 2015  Student General Artist
You made the Boobiverse, were breasts are so big they're the universe
Reply
:iconpootisofpower:
Pootisofpower Featured By Owner Dec 3, 2015  Hobbyist Writer
Try tits so big they destroyed the universe, then the multiverse, then heaven and God, which then basically made the girls tits God (or would it be gods since it was both tits that destroyed God)
Reply
:iconred10002:
red10002 Featured By Owner Dec 4, 2015  Student General Artist
That big? How dose she get anything? Or becuse she so big she like a queen and people get things for her like food water etc
Reply
:iconpootisofpower:
Pootisofpower Featured By Owner Dec 4, 2015  Hobbyist Writer
Well everything but her is dead so I don't think she gets things given to her and even then at the end of her story literally the only thing she cares about is making her tits bigger so she creates new universes for her tits to destroy because they never stop growing because whenever her tits destroy something they grow faster.
Reply
:iconred10002:
red10002 Featured By Owner Dec 7, 2015  Student General Artist
Is there a story to this? I would like to read this. Now that I think about it, there been more then one time were I have seen a girl, in a pic or story, who didn't care about others but only to be the biggest girl in the world or universe in your case.
Reply
:iconpootisofpower:
Pootisofpower Featured By Owner Dec 7, 2015  Hobbyist Writer
Yes there is, it's called booooooobies, it's a three part story and I wrote it in the journal because I don't know how to submit stuff to the gallery 
Reply
(1 Reply)
:iconcatchthirtythree:
CatchThirtyThree Featured By Owner Jul 12, 2015  Hobbyist Traditional Artist
First four are great, rest is pure mythology
Reply
:iconyugimaster:
yugimaster Featured By Owner Jul 5, 2015
Wow
Reply
:iconatariboy2600:
Atariboy2600 Featured By Owner Jul 3, 2015
NICE^^
Reply
:iconyoukah:
Youkah Featured By Owner Jun 14, 2015  Hobbyist General Artist
I'M CRYING AT THE BIG ONES HOW DO THEY EVEN WORK

Anyways this is actually a pretty good reference
Reply
:iconjj3808:
jj3808 Featured By Owner Jun 6, 2015  Hobbyist Digital Artist
Finally a bust size scale that makes sense. Thank you Matsu-sensei.
Reply
:iconobsessor23:
Obsessor23 Featured By Owner May 16, 2015  Hobbyist
Quite fond of Matt's two-cent chibi
Reply
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November 7, 2010
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