This app converts the Christian era into the Japanese era, or the Japanese era into the Christian era.
　And it shows “Eto” (60 years cycle), “Kōki” (Japanese Imperial era), Period, “Mínguó” (era of Republic of China (Taiwan)), how long years ago, and so on.

　How to use
Choose the “Christian era”, “Japanese era”, “Kōki” or “Mínguó”.
If you choose the “Japanese Era”, then choose the Japanese era name.
Input the number.
Tap the run button. The results will appear.
Tap the delete button, when you want to clear both the input value and the results.

　This app supports the languages Japanese, English, German, French, Russian, Korean, simplified Chinese and traditional Chinese. You can change the Language from the setting menu in the app.

　This application is the pay version including no ads. There is the free version including ads.
https://play.google.com/store/apps/details?id=free.henkan.wareki.seireki