Size Guide
34DDD Bra Size
Everything you need to know about bra size 34DDD — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 34DDD
Underbust (Band)
33 to 35 inches (84 to 89 cm)
Full Bust
approximately 41 inches (104 cm)
34DDD in Other Sizing Systems
US
34DDD/F
UK
34E
EU
75F
FR
90F
AU
12E
Sister Sizes for 34DDD
These sizes have the same cup volume as 34DDD. Try them if the band feels too tight or too loose.
32F ↔ 34DDD ↔ 36DD
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 34DDD
DDD/F cups benefit from full-coverage styles and three-part cups that offer structure. Side support panels are helpful.
If your 34DDD 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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