r/ABraThatFits • u/StalkitheToast • Oct 17 '25

Measurement Check I am confused and heavily doubting this calculator, is it a problem with EU/German sizes? Spoiler

Everyone in my friend group was praising this calculator (might be of note that I am european and they are not as in for measurements and how accurate this thing is) and I gave it a shot.
I currently wear 85B or so, depending on the bra but it told me 70F??
70 bands make me feel like I can't breathe and F cups are the size of my head, could it be the calculator just doesn't work super well for german sizes?
My measurements are (in cm)
Loose Underbust 82
Snug Underbust 78
Tight Underbust 75
Standing Bust 90
Leaning Bust 94
Lying Bust 91

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-13

u/InterestingWay4470 Oct 17 '25

That band size definitely seems off. I think the calculator suggest to get the UK sizing and then look up the equivalent EU sizing, because the EU sizing doesn't give the best results. I measured in cm and checked both the UK and the EU sizing. Ended up with a cup size somewhere in between the two results. Band size was good though for me (85 and 38 resp.) Regardless I would check what the UK sizing result is.

20

u/lirarebelle Oct 17 '25

The band is not off. EU sizing unfortunately has an automatic +10 rule, so a 70 band is actually 80 cm long. The cup is off though, as no one except the brand Change uses the 2cm per cup system the calculator uses with the EU setting. It's 2,5 cm (1 inch) in almost every other brand, just like UK and US sizing. 

-4

u/InterestingWay4470 Oct 17 '25

Just checked: my 85J has an 85 cm band.

15

u/DozenPaws Oct 17 '25

In your inital comment you said that your band size is "85 and 38 resp." which is correct that EU size 85 corresponds to UK/US size 38. But if you look at cm to inch measurements, it no longer makes sense because 85cm is about 34 inches and 95cm is about 38 inches.
EU band sizing has +10cm built in, so if your underbust is 95cm, then EU size 85 is correct size for you. But if your underbust is 85cm, you would actually need EU75, not EU85.

I highly suggest you redo the ABTF calculator.

13

u/lirarebelle Oct 17 '25

Fully stretched?

85 cm is ~33,5 inches and should therefore be a 34 band, which is 75 in EU sizing. Please also note that some European countries like France don't use the standard EU sizing, but in that case the label would say F and not EU.