实用工具可以使用
计算您的文胸尺码
根据下胸围和胸围尺寸，查找美版/英版文胸的参考起始尺码。
交互式工具区
无需注册账号The calculation runs locally using browser APIs; it does not require uploading measurements. Optional analytics and advertising have separate consent and privacy disclosures. Avoid sensitive inputs.
- Approximate UK starting size
- 32D
- Approximate US starting size
- 32D
- Rounded band (inches)
- 32
Approximate adult fitting starting point, not a body assessment. Rounds snug underbust to the nearest even-inch band without adding four inches; cup letters use rounded bust-minus-band difference. US/UK brand charts vary substantially. Fit and comfort take priority; no image or measurement is uploaded.