Japanese Era (Wareki) Converter
Convert between Gregorian dates and Japanese era dates (Reiwa, Heisei, Showa, Taisho, Meiji) in both directions, with 'gannen' (first year) notation. Handy for resumes and official forms in Japan. Calculated in your browser.
FAQ
What Gregorian year is Reiwa 7?
Reiwa 7 is 2025. For Reiwa, add 2018 to the era year — this tool converts exact dates, not just years.
Can it convert dates before Meiji?
Dates from 1873-01-01 onward are supported. Earlier dates used a lunisolar calendar, so a simple conversion is not possible.
Can it show 'gannen' for year 1?
Yes — there is an option to display the first year of an era as 'gannen' (元年).
Should a Japanese resume use era or Gregorian dates?
Either is acceptable, but be consistent throughout the document. This converter doubles as a quick reference for graduation and employment years.