Size Guide
30A Bra Size
Everything you need to know about bra size 30A — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 30A
Underbust (Band)
29 to 31 inches (74 to 79 cm)
Full Bust
approximately 32 inches (81 cm)
30A in Other Sizing Systems
US
30A
UK
30A
EU
65A
FR
80A
AU
8A
Sister Sizes for 30A
These sizes have the same cup volume as 30A. Try them if the band feels too tight or too loose.
28B ↔ 30A ↔ 32AA
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 30A
A-cup bras often benefit from light padding for shape. Bralettes and triangle styles are popular and comfortable.
If your 30A 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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