This post will provide the charts and tables that are accurate and the right conversion procedures. About bra sizing, it is truly as simple as learning your ABCs and 123s. In the most basic terms, the United States employs letters A through F, and so on to denote cup sizes, with gradual increases in volume as you progress up the scale.

The intricate system also has many lettering, such as AA, DDD, etc. The bra’s band size is determined by its numerical value, which is based on the measurement around a woman’s torso right behind her breasts. These numbers usually start at 30 and go up in twos: 32, 34, 36, etc.

So, how do you get around this alphabetical map? Here is a quick rundown of the most popular sizing options available.

Sizing Guidelines

Sizes in the United States are denoted as the US. For example, “US 32D” or “32D (US)” is written with the abbreviation and the size. The sizing convention used in the United States is based on measurements in inches.

Band Size

The band sizes are separated into 2-inch increments. The measurement above the bust is referred to by the band size, which is a “label.” However, because the band size label and the band size measurements are not identical, the band size label and the band size measurements are not identical. Always round down to the next 2 inches multiple. If you are between two band sizes, choose the smaller. If you decide between two cup sizes, go with the larger one.

Determine The Size of The Band

Use the rounded down measurement and multiply it by four (+4) to get the band size. For instance, a measurement of 27 inches is rounded to 26 inches. By multiplying by four, we get 30, the band size. The most frequent band sizes are 32, 34, 36, and 38, corresponding to the European and International conventions of 70, 75, 80, and 85. The naming and measures of American bands are identical to those of British bands (UK).

Cup Sizes

Cup sizes relate to the difference between over-bust and under-bust dimensions rounded down. A is the smallest size, with a 4-5-inch over/underbust difference. The sizes progress alphabetically in 1-inch increments, starting with B (5-6 in), C (6-7 in), and so on. Sizes smaller than A as AA and AAA.

Besides that, cups D, DD, DDD are used by many brands. And today, they also utilize E instead of DD, F instead of DDD, and so on. That is why American cups may be labeled with both, such as “E/DD” and “F/DDD.”

This post includes tables with a list of bra sizes in both inches (in) and centimeters (cm) for the United States (cm). In addition, individual band and cup measurements are presented.

Show size table with:

1. AA-Cups 

2. A-Cups

3. B-cups

4. C-Cups

5. D-cups

6. DD/E-cups

7. DDD/F-cups

8. DDDD/G-cups

9. H-cups

10. I-cups

11. J-cups

12. K-cups 

13. L-cups

14. M-cups 

15. N-cups

16. O-Cups

17. P-Cups

18. R-Cups

19. S-Cups

20. T-Cups