Reviewed
34G (UK 34F) bra size
A 34G has a 34-inch band and a G cup, about 7 inches between band and bust. In the UK it is 34F, in Australia 12F and in Europe 75G.
- US
- 34G
- UK
- 34F
- AU
- 12F
- EU
- 75G
- FR
- 90G
Also fits (sister sizes): 32H firmer band · 36DDD looser band · all same-volume sizes ↓
34G measurements
- Snug underbust
- 34–35 in · 86–89 cm
- Bust, fullest part
- about 41 in · 103–105 cm
- Cup difference
- 7 in (G cup)
These are starting points from the band-and-cup method. Brands differ by about a size, so a two-minute measurement beats any chart.
34G sister sizes
Same cup volume, different band. If a 34G band feels too loose, go down a band and up a cup; if it feels tight, go up a band and down a cup.
If a 34G doesn't fit
- Band rides up at the back
- Try 32H
- Band digs in, cups fit
- Try 36DDD
- Spilling over the cups
- Try 34H
- Cups gape or wrinkle
- Try 34DDD
Not sure what's wrong? Run through the 4-point fit check.
34G questions
What is the sister size of 34G?
32H (one band down, one cup up) and 36DDD (one band up, one cup down). Sister sizes hold the same cup volume on a different band.
What is 34G in UK, Australian and European sizes?
UK 34F, Australia 12F, Europe 75G and France 90G. US and UK cup letters match up to DD and then split.
What measurements are a 34G?
A snug underbust of about 34–35 in (86–89 cm) and a bust of about 41 in (103–105 cm). Measure with the tape level and use the calculator for an exact result.
Is 34G a big size?
34G has a very full cup volume for a 34 band. Cup letters only mean something next to the band: a 34G holds the same as 28J or 30I.