Size Guide
42A Bra Size
Everything you need to know about bra size 42A — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 42A
Underbust (Band)
41 to 43 inches (104 to 109 cm)
Full Bust
approximately 44 inches (112 cm)
42A in Other Sizing Systems
US
42A
UK
42A
EU
95A
FR
110A
AU
20A
Sister Sizes for 42A
These sizes have the same cup volume as 42A. Try them if the band feels too tight or too loose.
40B ↔ 42A ↔ 44AA
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 42A
A-cup bras often benefit from light padding for shape. Bralettes and triangle styles are popular and comfortable.
If your 42A 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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