42D bra size
42D means band 42 and cup D: the cup represents a 4 in difference between your bust and the band.
US 42D · UK 42D
- Difference4 in10.2 cm
- Underbust, underbust method41 to 43 in104.14 to 109.22 cm
- Bust for this cup45.5 to 46.5 in115.57 to 118.11 cm
Each range includes its first figure and stops just short of its last.
Which measurements give a 42D
The label is a band and a cup, not a body measurement. Each of the three published rules turns the same label into different measurements.
| Method | Underbust (in) | Underbust (cm) | Bust (in) |
|---|---|---|---|
| Underbust method | 41 to 43 in | 104.14 to 109.22 cm | 45.5 to 46.5 in |
| Add-4 method | 36.5 to 38.5 in | 92.71 to 97.79 cm | 45.5 to 46.5 in |
| EU method, band 95 | 36.42 to 38.39 in | 92.5 to 97.5 cm | Cup read in cm |
Each range includes its first figure and stops just short of its last.
42D in six sizing systems
| System | Band | Cup | Size |
|---|---|---|---|
| US | 42 | D | 42D |
| UK | 42 | D | 42D |
| EU | 95 | D | 95D |
| FR/BE | 110 | D | 110D |
| AU/NZ | 20 | D | 20D |
| JP | 95 | E | 95E |
Bands and letters are label equivalents, not body measurements. JP letters vary by brand.
Sister sizes of 42D
A sister size moves the band one step and the cup one letter the other way.
- 2 bands down38DDD
- 1 band down40DD
- 1 band up44C
- 2 bands up46B
The 42D bust range is 45.5 to 46.5 in, which gives cup D on band 42 under both the underbust method and the add-4 method. That range describes your bust; band 42 is the tag label.
The US and UK labels stay 42D, while the EU label is 95D and the JP label is 95E. Published charts disagree about the band assigned to the same body: the underbust method and add-4 method use different underbust ranges, while the EU method uses centimetres and bands spaced 5 cm apart.
For 42D, the JP cup letter is E, one letter later than D in the EU label, and JP letters vary by brand. Its sister sizes include 40DD/E, with a smaller band and larger cup, and 44C, with a larger band and smaller cup.
Questions
What does 42D mean?
42D is a band of 42 with a cup that stands for a difference of 4 in (10.2 cm) between bust and band in US sizing.
What measurements give a 42D?
By the underbust method, an underbust of 41 to 43 in (104.14 to 109.22 cm) gives band 42, and a bust of 45.5 to 46.5 in gives this cup. By the add-4 method, band 42 comes from an underbust of 36.5 to 38.5 in. Each range includes its first figure and stops just short of its last.
What are the sister sizes of 42D?
The sister sizes of 42D are 38DDD, 40DD, 44C and 46B. Each step up in band takes the cup one letter down, and each step down takes it one letter up.