G Cup Size Guide
G cup represents an 8-inch bust-band difference. It's a very full bust size that requires specialty sizing, expert fitting, and bras designed specifically for maximum support.
Quick Facts: G Cup
Bust-Band Difference
8 inches (20 cm)
Approx. Volume (34 band)
~1300-1500 ml
UK Equivalent
G
EU Equivalent
H/I
Common G Cup Sizes
G Cup Works Best For
- ✓Very full-busted individuals
- ✓Professional fitting priority
- ✓Specialty shopping
- ✓Maximum support needs
Common Challenges
- !Specialty retailers only
- !Expert fitting essential
- !Higher price points
- !Limited style variety
Best Bra Styles for G Cup
Sister Sizes for G Cup
Sister sizes have the same cup volume with different band sizes. If your band feels too tight or loose, try a sister size.
Tighter Band
32H
Your Size
34G
Looser Band
34F
Frequently Asked Questions: G Cup
Where can I find G cup bras?
G cup bras are available at specialty lingerie boutiques, online full-bust retailers, and brands like Elomi, Panache, Goddess, and Sculptresse that specialize in larger cup sizes.
Is professional fitting necessary for G cups?
While not strictly necessary, professional fitting is highly recommended for G cups to ensure proper support, comfort, and to identify brands that work best for your shape.
What features are essential in a G cup bra?
Essential features include: 4-part cup construction, wide padded straps, 3-4 hook closures, firm underwire, side support panels, and power mesh lining for stability.
Find Your Perfect G Cup Bra
Use our calculator to confirm your size and get personalized recommendations.