Reviewed
38I (UK 38G) bra size
A 38I has a 38-inch band and a I cup, about 9 inches between band and bust. In the UK it is 38G, in Australia 16G and in Europe 85I.
- US
- 38I
- UK
- 38G
- AU
- 16G
- EU
- 85I
- FR
- 100I
Also fits (sister sizes): 36J firmer band · 40H looser band · all same-volume sizes ↓
38I measurements
- Snug underbust
- 38–39 in · 97–99 cm
- Bust, fullest part
- about 47 in · 118–121 cm
- Cup difference
- 9 in (I 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.
38I sister sizes
Same cup volume, different band. If a 38I 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 38I doesn't fit
- Band rides up at the back
- Try 36J
- Band digs in, cups fit
- Try 40H
- Spilling over the cups
- Try 38J
- Cups gape or wrinkle
- Try 38H
Not sure what's wrong? Run through the 4-point fit check.
38I questions
What is the sister size of 38I?
36J (one band down, one cup up) and 40H (one band up, one cup down). Sister sizes hold the same cup volume on a different band.
What is 38I in UK, Australian and European sizes?
UK 38G, Australia 16G, Europe 85I and France 100I. US and UK cup letters match up to DD and then split.
What measurements are a 38I?
A snug underbust of about 38–39 in (97–99 cm) and a bust of about 47 in (118–121 cm). Measure with the tape level and use the calculator for an exact result.
Is 38I a big size?
38I has a very full cup volume for a 38 band. Cup letters only mean something next to the band: a 38I holds the same as 28N or 30M.