Size Guide
34A Bra Size
Everything you need to know about bra size 34A — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 34A
Underbust (Band)
33 to 35 inches (84 to 89 cm)
Full Bust
approximately 36 inches (91 cm)
34A in Other Sizing Systems
US
34A
UK
34A
EU
75A
FR
90A
AU
12A
Sister Sizes for 34A
These sizes have the same cup volume as 34A. Try them if the band feels too tight or too loose.
32B ↔ 34A ↔ 36AA
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 34A
A-cup bras often benefit from light padding for shape. Bralettes and triangle styles are popular and comfortable.
If your 34A bra is gapping at the top of the cup, the cup may be too large or the wrong shape — try a demi-cup or balconette. If the center gore doesn't sit flat, go up one cup size.
Not sure about your size? Measure yourself and double-check.
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