Reviewed
38K (UK 38H) bra size
A 38K has a 38-inch band and a K cup, about 11 inches between band and bust. In the UK it is 38H, in Australia 16H and in Europe 85K.
- US
- 38K
- UK
- 38H
- AU
- 16H
- EU
- 85K
- FR
- 100K
Also fits (sister sizes): 36L firmer band · 40J looser band · all same-volume sizes ↓
38K measurements
- Snug underbust
- 38–39 in · 97–99 cm
- Bust, fullest part
- about 49 in · 123–126 cm
- Cup difference
- 11 in (K 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.
38K sister sizes
Same cup volume, different band. If a 38K 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 38K doesn't fit
Not sure what's wrong? Run through the 4-point fit check.
38K questions
What is the sister size of 38K?
36L (one band down, one cup up) and 40J (one band up, one cup down). Sister sizes hold the same cup volume on a different band.
What is 38K in UK, Australian and European sizes?
UK 38H, Australia 16H, Europe 85K and France 100K. US and UK cup letters match up to DD and then split.
What measurements are a 38K?
A snug underbust of about 38–39 in (97–99 cm) and a bust of about 49 in (123–126 cm). Measure with the tape level and use the calculator for an exact result.
Is 38K a big size?
38K has a very full cup volume for a 38 band. Cup letters only mean something next to the band: a 38K holds the same as 30O or 32N.