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75 cm Underbust Bra Size

A snug 75 cm underbust (≈ 29.5″) is a US 30 band, labelled EU 65 and FR 80. Slide to your bust in cm for the cup.

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My underbust is 75 cm: what's my size?

Measured in centimeters; converted to the inch-based method internally.
Your size · US
34C
EU / DE
FR / ES
UK
AU / NZ
IT
JP
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Why the EU label isn't your centimeters. An 84 cm underbust is a US 34 band, which the EU labels 75: the label follows US × 2.5 − 10, not the raw reading. That is why a converted size can feel a step off from a bra drafted natively in EU sizing.

Lookup

Every size on a 30 band, by bust in cm

BustDifferenceUS sizeEU · FR · UK
79 cm · 31″1″30A65A · 80A · 30A
81 cm · 32″2″30B65B · 80B · 30B
84 cm · 33″3″30C65C · 80C · 30C
86 cm · 34″4″30D65D · 80D · 30D
89 cm · 35″5″30DD65E · 80E · 30DD
91 cm · 36″6″30DDD65F · 80F · 30E
94 cm · 37″7″30G65G · 80G · 30F
97 cm · 38″8″30H65H · 80H · 30FF
US / UK30
EU / DE / JP65
FR / ES80
AU / NZ8
IT1
Underbust75 cm · 29.5″
Answered

75 cm underbust: answered

What bra band is a 75 cm underbust?

US 30. EU 65, FR 80, AU 8, IT 1. 75 cm is about 29.5 inches, rounded to the nearest even band.

Why is a 75 cm underbust not an EU 75 band?

EU labels follow the US band (× 2.5 − 10) rather than raw centimeters; a 75 cm reading is US 30 → EU 65. Brands drafted natively in EU sizing may grade from centimeters and land one band different: the sister size settles it.

How many cm is one cup?

About 2.5 cm of difference between bust and underbust.

Shop itAt HauteFlair, our sister retailer

Opens HauteFlair’s own hub page; use your measured size there. HauteFlair is owned by the same company as Brasize.ai; that relationship never changes the sizing math, charts, or fit advice on this page. How this site makes money.

Enter both measurements

Underbust and bust together give one exact size.

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