Size Guide
34D Bra Size
Everything you need to know about bra size 34D — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 34D
Underbust (Band)
33 to 35 inches (84 to 89 cm)
Full Bust
approximately 39 inches (99 cm)
34D in Other Sizing Systems
US
34D
UK
34D
EU
75D
FR
90D
AU
12D
Sister Sizes for 34D
These sizes have the same cup volume as 34D. Try them if the band feels too tight or too loose.
32DD ↔ 34D ↔ 36C
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 34D
D cups benefit from wider straps for comfort. Unlined bras can provide a more natural shape at this size.
If your 34D 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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