What cup size is a size 38 bra? ——From size analysis to hot topic inventory
Recently, "size 38 bra cup" has become one of the hot topics on the Internet, and many consumers are confused about the conversion of bra sizes. This article will combine the hot content of the entire network in the past 10 days to answer this question in the form of structured data, and attach an inventory of related hot topics.
1. Underwear size analysis: What cup does size 38 correspond to?

Underwear size byNumber (underbust) + letter (cup)composition. No. 38 is the European and American size standard, corresponding to a lower bust of about 86cm (different brands may have differences), but the cup size needs to be calculated based on the difference between the upper bust:
| Under bust (cm) | International sizes | European and American sizes |
|---|---|---|
| 83-87 | 85 | 38 |
| Difference between upper and lower bust (cm) | Corresponding cup |
|---|---|
| 10-12 | A cup |
| 12-14 | B cup |
| 14-16 | C cup |
| 16-18 | D cup |
For example: If the lower bust is 86cm (size 38) and the upper bust is 98cm, the difference is 12cm, corresponding to38B.
2. Related data of hot topics on the entire network in the past 10 days
| Ranking | hot topics | Relevance | Search volume (10,000) |
|---|---|---|---|
| 1 | National standards for underwear sizes | 85% | 120.5 |
| 2 | Women’s body anxiety discussion | 60% | 89.3 |
| 3 | International brand size differences | 78% | 67.8 |
| 4 | Return rate of underwear purchased online | 45% | 52.1 |
3. Why is the size 38 cup issue suddenly so popular?
1.Impact of e-commerce promotions: Recently, various major platforms have launched underwear promotions, and the number of inquiries about size has increased sharply.
2.Driven by celebrity events: An actress caused controversy when she mentioned in an interview that "38D was recommended by a store clerk".
3.Rising demand for popular science: The 2023 "White Paper on Chinese Women's Underwear Consumption" shows that 68% of consumers have misunderstandings about size.
4. Professional advice: How to choose underwear correctly?
1.Regular measurements: Measure chest circumference every 3 months. If the weight changes by more than 5kg, re-measurement is required.
2.Pay attention to brand differences: Size comparison table of brands from different countries (example):
| International | Europe and America | United Kingdom | Japan |
|---|---|---|---|
| 85B | 38B | 34B | 75B |
3.Key points for trying on: There is no indentation on the shoulder straps, one finger can be inserted into the bottom band, and the cup completely covers the breasts.
5. Extended Hot Topics: The topic of women’s health is heating up
Among related hot searches in the past 10 days, the search volume for "breast health self-examination method" increased by 210% month-on-month, indicating that consumers' focus on the functionality of underwear has shifted from aesthetics to health.
Summary: No. 38 itself does not indicate the cup size, it needs to be calculated based on the difference between the upper and lower bust sizes. It is recommended that consumers master basic measurement methods and pay attention to brand size comparison tables in order to choose suitable underwear.
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