外贸鞋码换算指南：4码在不同国家的对应尺寸
在跨境购物时，鞋码换算是消费者经常遇到的难题。特别是当看到"外贸鞋码4码"时，很多国内消费者都不清楚这相当于国内的哪个尺码。实际上，不同国家的鞋码标准差异很大，必须根据具体国家来判断。
When shopping across borders, shoe size conversion is a common challenge for consumers. Especially when seeing "international size 4", many domestic shoppers are unsure what this equals in their local sizing. In fact, shoe size standards vary significantly between countries and must be judged based on the specific country.
主要国家鞋码对照表：
Major Countries Shoe Size Comparison:
- 美国(US): 4-4.5-5-5.5
- 英国(UK): 2.5-3-3.5-4
- 欧洲(EU): 33-34-35-36
- 中国(CN): 515-220-225-230
从对照表可以看出，同样是4码，在不同国家对应的实际尺寸完全不同。美国尺码的4码相当于中国尺码的515，而英国尺码的4码则相当于中国尺码的230。这种差异主要源于各国采用不同的测量基准和编号系统。
As shown in the comparison chart, the same size 4 corresponds to completely different actual sizes in different countries. A US size 4 equals a Chinese size 515, while a UK size 4 equals a Chinese size 230. These differences mainly stem from different measurement standards and numbering systems adopted by various countries.
对于跨境电商卖家而言，在商品详情中提供准确的尺码对照表可以显著降低退货率，提升客户满意度。同时，使用结构化数据标记让搜索引擎更好地理解产品尺寸信息，有助于提升商品在搜索结果中的展现效果。
For cross-border e-commerce sellers, providing accurate size comparison charts in product details can significantly reduce return rates and improve customer satisfaction. Meanwhile, using structured data markup helps search engines better understand product size information, which improves product visibility in search results.
