How much is the postage for a registered letter to Paris?

How much is the postage for a registered letter to Paris?
寄到巴黎的挂号信的邮资多少?
postage邮资
registered letter挂号信
for
对于：用来指愿望、意图或感觉的目标：
had a nose for news; eager for fame and fortune.
消息灵通；渴求名利
等值,等量：用于表示等值或相同关系：
paid ten dollars for a ticket; repeated the conversation word for word.
花十美元买了张票；逐字逐句地重复谈话
达：用于表示数量、范围或持续时间：
a bill for five dollars; walked for miles; stood in line for several minutes.
五美元的钞票；步行了数英里；排了几分钟的队
这里的for应该和上面几个用法比较贴近.
我觉得介词of也可以
postage of a registered letter
一个挂号信的邮资
但这只是本人的想法,也许这里for是固定用法.

just a habbit,feeling.