Size Guide
42B Bra Size
Everything you need to know about bra size 42B — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 42B
Underbust (Band)
41 to 43 inches (104 to 109 cm)
Full Bust
approximately 45 inches (114 cm)
42B in Other Sizing Systems
US
42B
UK
42B
EU
95B
FR
110B
AU
20B
Sister Sizes for 42B
These sizes have the same cup volume as 42B. Try them if the band feels too tight or too loose.
40C ↔ 42B ↔ 44A
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 42B
B cups are among the most widely available sizes. If gapping occurs, try a demi-cup or push-up style.
If your 42B 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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