Size Guide
30DDD Bra Size
Everything you need to know about bra size 30DDD — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 30DDD
Underbust (Band)
29 to 31 inches (74 to 79 cm)
Full Bust
approximately 37 inches (94 cm)
30DDD in Other Sizing Systems
US
30DDD/F
UK
30E
EU
65F
FR
80F
AU
8E
Sister Sizes for 30DDD
These sizes have the same cup volume as 30DDD. Try them if the band feels too tight or too loose.
28F ↔ 30DDD ↔ 32DD
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 30DDD
DDD/F cups benefit from full-coverage styles and three-part cups that offer structure. Side support panels are helpful.
If your 30DDD 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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