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.

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Bra.iCoA.cn 提供文胸尺码在线计算，测量出自己上胸围和下胸围，输入数值自动计算出罩杯尺码，比罩杯尺码表需要自己去查要方便很多。 罩杯计算结果仅供参考，多试试找到最适合自己的文胸罩杯。

2025年2月27日 · Our bra size calculator supports a wide range of sizes, including smaller and plus sizes. We include band sizes from 27 in to 56 in (60 cm to 120 cm) and cup sizes from A to Z, covering most standard bra brands.

水平围绕胸部乳房底部一周的长度，即为您的胸部下围尺寸，单位：cm。 购买文胸的时候，往往应根据自己的下胸围选择一个相近的概数作为自己文胸的尺码，例如，如果你的下胸围在68cm~72cm之间，那么请选择70码。

例如你的下胸围测量为79厘米，那就是80号，你的上胸围测量为92厘米，两数相减得13厘米，那就是B杯，把二者放在一起， 你应该戴的文胸尺码为 80B（国际尺码）或者 36B（欧洲尺码）。

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.

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!

Our comprehensive bra size calculator addresses these issues by providing detailed measurement instructions, accurate size conversion tools, and personalized fit verification tips.

2019年6月24日 · The bra size calculator is a tool essential while buying bras online or in stores. It helps you determine which bra fits you the best. Try it out now!