Reviewed
30DDD (UK 30E) bra size
A 30DDD has a 30-inch band and a DDD cup, about 6 inches between band and bust. In the UK it is 30E, in Australia 8E and in Europe 65F.
- US
- 30DDD
- UK
- 30E
- AU
- 8E
- EU
- 65F
- FR
- 80F
Also fits (sister sizes): 28G firmer band · 32DD looser band · all same-volume sizes ↓
30DDD measurements
- Snug underbust
- 30–31 in · 76–79 cm
- Bust, fullest part
- about 36 in · 90–93 cm
- Cup difference
- 6 in (DDD 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.
30DDD sister sizes
Same cup volume, different band. If a 30DDD 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 30DDD doesn't fit
- Band rides up at the back
- Try 28G
- Band digs in, cups fit
- Try 32DD
- Spilling over the cups
- Try 30G
- Cups gape or wrinkle
- Try 30DD
Not sure what's wrong? Run through the 4-point fit check.
Compare 30DDD
Sizes next to 30DDD
30DDD questions
What is the sister size of 30DDD?
28G (one band down, one cup up) and 32DD (one band up, one cup down). Sister sizes hold the same cup volume on a different band.
What is 30DDD in UK, Australian and European sizes?
UK 30E, Australia 8E, Europe 65F and France 80F. US and UK cup letters match up to DD and then split.
What measurements are a 30DDD?
A snug underbust of about 30–31 in (76–79 cm) and a bust of about 36 in (90–93 cm). Measure with the tape level and use the calculator for an exact result.
Is 30DDD a big size?
30DDD has a fuller cup volume for a 30 band. Cup letters only mean something next to the band: a 30DDD holds the same as 28G or 32DD.