Reviewed
38D bra size
A 38D has a 38-inch band and a D cup, about 4 inches between band and bust. In the UK it is 38D, in Australia 16D and in Europe 85D.
- US
- 38D
- UK
- 38D
- AU
- 16D
- EU
- 85D
- FR
- 100D
Also fits (sister sizes): 36DD firmer band · 40C looser band · all same-volume sizes ↓
38D measurements
- Snug underbust
- 38–39 in · 97–99 cm
- Bust, fullest part
- about 42 in · 105–108 cm
- Cup difference
- 4 in (D 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.
38D sister sizes
Same cup volume, different band. If a 38D 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 38D doesn't fit
- Band rides up at the back
- Try 36DD
- Band digs in, cups fit
- Try 40C
- Spilling over the cups
- Try 38DD
- Cups gape or wrinkle
- Try 38C
Not sure what's wrong? Run through the 4-point fit check.
Compare 38D
Sizes next to 38D
38D questions
What is the sister size of 38D?
36DD (one band down, one cup up) and 40C (one band up, one cup down). Sister sizes hold the same cup volume on a different band.
What is 38D in UK, Australian and European sizes?
UK 38D, Australia 16D, Europe 85D and France 100D. US and UK cup letters match up to DD and then split.
What measurements are a 38D?
A snug underbust of about 38–39 in (97–99 cm) and a bust of about 42 in (105–108 cm). Measure with the tape level and use the calculator for an exact result.
Is 38D a big size?
38D has a very full cup volume for a 38 band. Cup letters only mean something next to the band: a 38D holds the same as 28I or 30H.