13元英文翻译为：13 yuan。

yuan：n.元(中国货币单位)；复数： yuan

例：

His monthly allowance is 800 yuan.

他每月津贴为800元。

The rent for the lodgings is 3000 yuan a month.

出租房的租金每月3000元。

Most workers in that company earn a salary in the range of 3000 yuan to 4000 yuan.

那家公司多数员工的薪水在3000元到5000元之间。

The commission was reckoning on a profit of more than 1 million yuan a year.

委员会指望每年能盈利逾一百万元。