Year Converter
Japanese era (Reiwa, Heisei, Showa) and related calendar years to AD, and back.
Frequently asked questions
How do I convert a Reiwa year to AD?
Add 2018 to the Reiwa year. Reiwa 8 is 2026. Reiwa 1 started on 1 May 2019.
How do I convert a Heisei year to AD?
Add 1988. Heisei 31 is 2019. Heisei began on 8 January 1989 and ended on 30 April 2019.
How do I convert a Showa year to AD?
Add 1925. Showa 64 is 1989. Showa began on 25 December 1926.
Why can one AD year show two eras?
Eras change in the middle of a year. 2019 is both Heisei 31 and Reiwa 1, 1989 is both Showa 64 and Heisei 1.
What is gannen?
Gannen means “first year” of an era. Japan writes it as gannen instead of 1.