How to Use the Japanese Era Date Converter
The Japanese era date converter lets you switch between the traditional Japanese calendar system (和暦, wareki) and the Western Gregorian calendar in seconds. To convert an era year to a Western year, select the era name from the dropdown — Reiwa (令和), Heisei (平成), Showa (昭和), Taisho (大正), or Meiji (明治) — then enter the era year number. The result appears instantly, with the full Japanese notation and English equivalent.
To go the other direction, use the Gregorian → Era tab. Enter a Western year (and optionally a month and day) to find the corresponding Japanese era year. For dates in transition years like 2019 or 1989, entering the month and day ensures you get the correct era.
Why Japan Uses the Era Calendar System (元号)
Japan's era system, known as gengō (元号), has been in use for over 1,300 years. Each era is named at the start of a new emperor's reign and carries a meaning — Reiwa (令和) means "Beautiful Harmony", Heisei (平成) means "Achieving Peace", and Showa (昭和) means "Radiant Japan".
The era calendar remains in everyday use across Japan today. Government documents, official paperwork, bank forms, and driver's licenses all use the Japanese era year alongside or instead of the Western year. For foreign residents and visitors, knowing how to convert between the two systems is a practical necessity. The current era, Reiwa, began on May 1, 2019, and all dates from that day onward are counted from Reiwa 1 (令和元年).
Era date information sourced from the Japan Cabinet Office.