# How do cup sizes work

## Which cup size is bigger B or C?

If your bust size is less than 1 inch bigger than your band size, you’re a cup size AA.

**1-inch difference = A**.**2-inch difference = B**.**3-inch difference = C**.Bra sizes are based on your band size (the number) and your cup size (the letter). These measurements are usually determined by using a

**tape measure around your rib cage and bust**. The number/letter is your bra size. Finding the right bra size is crucial for the right support and for a smooth comfortable fit.## How do you know your cup size?

Take your bust measurement

**(usually the bigger number) and subtract your band measurement**. This number corresponds with your cup size. If your bust measurement and band measurement are the same number, you’re an AA cup.## Is a size 36 bra big?

It’s a common misconception that the larger the cup size, the larger the bra, no matter what the band size (i.e. a 32F is larger than a 36B, a 34C is larger than a 38A, etc). However, this is not the case.

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Bra Sister Size Size Comparison Chart:

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Bra Sister Size Size Comparison Chart:

36 BAND SIZES | ||
---|---|---|

34D | 36C | 38B |

34DD | 36D | 38C |

34DDD | 36DD | 38D |

34F | 36DDD | 38DD |

## What cup size is a 38?

a difference of 9 inches corresponds to a F cup. If you are hesitating between 2 sizes, take the bigger of the two.

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Under the bust.

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Under the bust.

SIZE TO ORDER | Bust measurement (in inches) | Under the bust measurement (in inches) |
---|---|---|

36 B | 37 – 37.8 | 31 – 32 |

38 B | 39 – 39.8 | 33 – 34 |

40 B | 40.1 – 41.7 | 35 – 36 |

## What is the average bra size for 15 year old?

Bra sizes

Clothes Sizing Age | Bra size |
---|---|

Age 9 | N/A |

Age 10 – 11 | 30A /30B |

Age 12-13 | 32A / 32B |

Age 14-15 | 34A/34B |

## Is DDD the same as F?

After D you can either go up to DD(Double D) or its equivalent E,

**DDD(Triple D)**is the next cup size which turns to be the equivalent of F. Once you hit F/DDD you continue to go up letters like what was done before.## What is the highest bra size?

The largest Bra size in the world is

**size 102 ZZZ**and it belongs to Annie Hawkins-Turner, the woman with the largest natural breasts in the world.