28D bra size
28D pairs band 28 with cup D; that cup marks a 4 in difference between your bust and band, rounded to whole inches.
US 28D · UK 28D
- Difference4 in10.2 cm
- Underbust, underbust method27 to 29 in68.58 to 73.66 cm
- Bust for this cup31.5 to 32.5 in80.01 to 82.55 cm
Each range includes its first figure and stops just short of its last.
Which measurements give a 28D
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 | 27 to 29 in | 68.58 to 73.66 cm | 31.5 to 32.5 in |
| Add-4 method | 22.5 to 24.5 in | 57.15 to 62.23 cm | 31.5 to 32.5 in |
| EU method, band 60 | 22.64 to 24.61 in | 57.5 to 62.5 cm | Cup read in cm |
Each range includes its first figure and stops just short of its last.
28D in six sizing systems
| System | Band | Cup | Size |
|---|---|---|---|
| US | 28 | D | 28D |
| UK | 28 | D | 28D |
| EU | 60 | D | 60D |
| FR/BE | 75 | D | 75D |
| AU/NZ | 6 | D | 6D |
| JP | 60 | E | 60E |
Bands and letters are label equivalents, not body measurements. JP letters vary by brand.
Sister sizes of 28D
A sister size moves the band one step and the cup one letter the other way.
On 28D, cup D corresponds to a bust range of 31.5 to 32.5 in under both the underbust method and the add-4 method. The band is a tag label, while the difference comes from your bust and band measurements.
For 28D, the sister size one step up is 30C in US and UK labels, or 65C in EU labels. Two steps up gives 32B in US and UK labels, or 70B in EU labels. A sister size moves the band and cup letter together in opposite directions. Published charts disagree on the underbust that leads to band 28: the underbust method and add-4 method do not give overlapping ranges, and the EU method uses centimetres.
The JP label for 28D is 60E, with E one letter after D; JP letters vary by brand. The AU/NZ label is 6D, while FR/BE uses 75D.
Questions
What does 28D mean?
28D is a band of 28 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 28D?
By the underbust method, an underbust of 27 to 29 in (68.58 to 73.66 cm) gives band 28, and a bust of 31.5 to 32.5 in gives this cup. By the add-4 method, band 28 comes from an underbust of 22.5 to 24.5 in. Each range includes its first figure and stops just short of its last.
What are the sister sizes of 28D?
The sister sizes of 28D are 30C and 32B. Each step up in band takes the cup one letter down, and each step down takes it one letter up.