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34B bra size in EU

US 34B is an EU 75B. The band 34 becomes EU 75; the cup B maps to EU B.

75BEU size
34BUK size
75 cmunderbust band

34B across systems

SystemSize
US34B
EU75B
UK34B
FR90B

Band size reference

US bandEU bandUnderbust
306563–67 cm
327068–72 cm
347573–77 cm
368078–82 cm
388583–87 cm
Cups match through D; US DD equals EU E. If the fit is slightly off, sister sizes (one band down + one cup up) often solve it.

Frequently asked questions

What is 34B bra size in EU?

An EU 75B.

What is a US 34B bra in European sizing?

EU 75B (UK 34B).