Convert Japanese eras and Western years

Enter a date or an era year to see the Western year, Japanese era, zodiac, age and world calendars.

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Eco: no server processing: Processing happens only on your device. No data-center power or cooling water is used.

🤲你的文件属于你，就留在你的手中。

选项

Direction Western → Japanese era Japanese era → Western

Date

Age table (from 1920)

Dates before Meiji 6 (1873) used the lunar calendar and may differ.

How are years with an era change shown?

Date conversion switches eras on the exact day. The age table uses the era at the end of each year.

How are world calendars calculated?

With the calendar support built into your browser (Intl). Wording may differ slightly by browser.

用Japanese Era Converter处理我的文件安全吗？

安全。文件从不上传，只在你的浏览器内处理。每个页面都带有阻止对外连接的策略（Content-Security-Policy connect-src 'none'），左下角计数器显示的发送数据量为 0 字节。

免费吗？需要注册账号吗？

完全免费，无需账号，也没有使用次数限制。

手机上能用吗？

可以。iPhone 和安卓手机的浏览器都能使用。处理特别大的文件时，用电脑会更快。