例如：知道文胸尺寸为 34/75b或者 75b 或者34b,如果不是大陆码一律换算成大陆码，大陆码=2.5（34-4）=75，所以下胸围范围是 73~77,b罩杯的差的范围是 10~12.5，所以上胸围的取值范围是 83~89.5。

2025年1月7日 · B cup breasts are often seen as middle-of-the-road. They’re not as small as A cups, but not as large as C or D cups. Think of them like Goldilocks’ porridge – just right for many folks. Bust measurements and bra cup sizes can vary, so what looks like a B cup on one person might seem different on another.

Size B. You have a B cup breast size if your bust measurement is two inches higher than the band. This means your bra band typically measures 28 to 29 inches. B cups are a common size, with 44% of women measuring this size. If you want to sculpt the breasts without the compression of push-up bras, size B spacer bras will work for you.

Cup conversion chart. Notice that for calculating the cup code there is no direct conversion between sizes in centimetres and inches. Centimetres are used in continental Europe and Inches in USA, UK and AUS.

2020年12月17日 · 也可以根据其推算规律来判断，因为最小的差值为7.5，也就是a罩杯，如果你得到的差值为10，那就是b罩杯了，以此类推，每加2.5，罩杯就升级一个级别。

罩杯尺码=上胸围-下胸围 文胸一般分为aa、a、b、c、d、e六型，表示罩杯的深浅程度，每型之间的尺码区别由上、下胸围的差数决定。

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 guide will discuss the smaller than average size B cup size bra, how it can look on different bodies, and famous celebrities with the B cup size. I also explain the right way to measure your bust, as well as the perfect bras for the small cup size.

The letters – like A, B, C, D – stand for cup sizes. The numbers – like 32, 34, 36, 38 they tell you the band size – that’s the part of the bra that goes around your torso. For instance, a 34A means that your boobs are an A cup and that your bra is 34 inches around. Example: 37 inches (bust) – 34 inches (band) = 3 inches. That’s a ...

Measure yourself accurately in 3 simple steps and check out the size chart below. Band size: Take a snug measurement (inches) around your rib cage directly under your bust and parallel to the floor. Round to the nearest whole number. Cup size: Take a loose measurement over the fullest part of your bust, making sure you can still breathe.