Size Guide
30G Bra Size
Everything you need to know about bra size 30G — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 30G
Underbust (Band)
29 to 31 inches (74 to 79 cm)
Full Bust
approximately 38 inches (97 cm)
30G in Other Sizing Systems
US
30G
UK
30F
EU
65G
FR
80G
AU
8F
Sister Sizes for 30G
These sizes have the same cup volume as 30G. Try them if the band feels too tight or too loose.
28G ↔ 30F ↔ 32DDD
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 30G
G cups require well-engineered bras. Look for brands like Panache, Elomi, or Freya that specialize in fuller bust support.
If your 30G 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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