Size Guide
38B Bra Size
Everything you need to know about bra size 38B — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 38B
Underbust (Band)
37 to 39 inches (94 to 99 cm)
Full Bust
approximately 41 inches (104 cm)
38B in Other Sizing Systems
US
38B
UK
38B
EU
85B
FR
100B
AU
16B
Sister Sizes for 38B
These sizes have the same cup volume as 38B. Try them if the band feels too tight or too loose.
36C ↔ 38B ↔ 40A
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 38B
B cups are among the most widely available sizes. If gapping occurs, try a demi-cup or push-up style.
If your 38B 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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