The size of a bra always depends on two factors: the circumference of the body just below the breasts (called band size) and the circumference above the breasts, usually at the level of the nipples (called bust size).

Find your local bra size in the Bra Size Conversion Chart below, and see equivalent bra sizes in other bra sizing systems (countries). Note about cup size: In this bra size conversion chart, all bra sizes start with cup size AA. This will work with most bra models.

A 75A bra size is a European sizing system which corresponds to a band size of 75 centimeters and a cup size of A. The band size, or underbust measurement, is the measurement taken around your ribcage just below your bust.

Ever wondered about your bra size equivalent in France or the US? Or are you an Australian shopping for bras in the UK? Here is our international bra size conversion table to help you with different size systems.

簡單一個Bra Size 對照表幫你計算正確Cup數和胸圍尺寸。 市面上不同内衣品牌的版型設計都會有明顯差異。 就算是同一個品牌，不同產品所選用的布料、罩杯設計和深度都可以影響您需要穿的尺碼。

This calculator estimates bra size based on bust size, frame size, and common measurement standards. Also, convert bra sizes in the US, UK, EU, and Australia.

With this converter you can convert a bra size to another bra size system. Enter the bra size and choose which size system to change to which size system and see result. You can convert bra sizes between the following systems: EU, UK, US, IT, AU and FR.

Use our international size chart to help convert any underwear sizes into your desired size. Using your clothing size, under-bust measurement, cup size and our bra size converter will help you find the right bra size or discover your bra sister sizes!

2011年11月22日 · 文胸的尺寸一般由一个数字和一个英文字母组合而成，例如75A或80B，其中数字代表胸围尺码，英文字母代表杯型尺码。 文胸的尺码通常有两种量制：一为英制，一为公制。 英制尺码由28英寸-40英寸，代表上胸围的周长；公制由68厘米-90厘米，代表下胸围的周长。 一般杯型分为：A、B、C、D、E、F… 图中的文胸尺码对照表提供的杯型选择方法是：杯型=上胸围-下胸围，+2.5cm增级。 如： 上胸围-下胸围=12.5cm，为B杯（cup），以此类推。 80，下胸 …

In summary, if we have 75D, this means that a woman's bra fits for a woman with a circumference of 75 and a cup D. How to calculate the size of the bra cup? This is a simple result of action A - B. The letter A is the circumference in the bust, while the letter B is the size under the bust.