Reviewed
34C bra size
A 34C has a 34-inch band and a C cup, about 3 inches between band and bust. In the UK it is 34C, in Australia 12C and in Europe 75C.
- US
- 34C
- UK
- 34C
- AU
- 12C
- EU
- 75C
- FR
- 90C
Also fits (sister sizes): 32D firmer band · 36B looser band · all same-volume sizes ↓
34C measurements
- Snug underbust
- 34–35 in · 86–89 cm
- Bust, fullest part
- about 37 in · 93–95 cm
- Cup difference
- 3 in (C 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.
34C sister sizes
Same cup volume, different band. If a 34C 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 34C doesn't fit
- Band rides up at the back
- Try 32D
- Band digs in, cups fit
- Try 36B
- Spilling over the cups
- Try 34D
- Cups gape or wrinkle
- Try 34B
Not sure what's wrong? Run through the 4-point fit check.
Compare 34C
Sizes next to 34C
34C questions
What is the sister size of 34C?
32D (one band down, one cup up) and 36B (one band up, one cup down). Sister sizes hold the same cup volume on a different band.
What is 34C in UK, Australian and European sizes?
UK 34C, Australia 12C, Europe 75C and France 90C. US and UK cup letters match up to DD and then split.
What measurements are a 34C?
A snug underbust of about 34–35 in (86–89 cm) and a bust of about 37 in (93–95 cm). Measure with the tape level and use the calculator for an exact result.
Is 34C a big size?
34C has a fuller cup volume for a 34 band. Cup letters only mean something next to the band: a 34C holds the same as 28DDD or 30DD.