Reviewed
42H (UK 42FF) bra size
A 42H has a 42-inch band and a H cup, about 8 inches between band and bust. In the UK it is 42FF, in Australia 20FF and in Europe 95H.
- US
- 42H
- UK
- 42FF
- AU
- 20FF
- EU
- 95H
- FR
- 110H
Also fits (sister sizes): 40I firmer band · 44G looser band · all same-volume sizes ↓
42H measurements
- Snug underbust
- 42–43 in · 107–109 cm
- Bust, fullest part
- about 50 in · 126–128 cm
- Cup difference
- 8 in (H 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.
42H sister sizes
Same cup volume, different band. If a 42H 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 42H doesn't fit
- Band rides up at the back
- Try 40I
- Band digs in, cups fit
- Try 44G
- Spilling over the cups
- Try 42I
- Cups gape or wrinkle
- Try 42G
Not sure what's wrong? Run through the 4-point fit check.
42H questions
What is the sister size of 42H?
40I (one band down, one cup up) and 44G (one band up, one cup down). Sister sizes hold the same cup volume on a different band.
What is 42H in UK, Australian and European sizes?
UK 42FF, Australia 20FF, Europe 95H and France 110H. US and UK cup letters match up to DD and then split.
What measurements are a 42H?
A snug underbust of about 42–43 in (107–109 cm) and a bust of about 50 in (126–128 cm). Measure with the tape level and use the calculator for an exact result.
Is 42H a big size?
42H has a very full cup volume for a 42 band. Cup letters only mean something next to the band: a 42H holds the same as 28O or 30N.