Size Guide
42AA Bra Size
Everything you need to know about bra size 42AA — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 42AA
Underbust (Band)
41 to 43 inches (104 to 109 cm)
Full Bust
approximately 43 inches (109 cm)
42AA in Other Sizing Systems
US
42AA
UK
42AA
EU
95AA
FR
110AA
AU
20AA
Sister Sizes for 42AA
These sizes have the same cup volume as 42AA. Try them if the band feels too tight or too loose.
40A ↔ 42AA
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 42AA
AA cups can be hard to find in stores. Look for brands specializing in petite sizing like The Little Bra Company.
If your 42AA 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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