Era Year Converter
Convert Gregorian years, Japanese eras, Minguo years and Thai Buddhist years. It runs directly in your browser.
Local processingProcessed locally in your browser
Enter a year
Enter 1 for the first year (元 also works). Full-width digits are accepted.
With a year only, transition years show both Japanese eras and their date ranges.
Converted dates
Enter a year to see its equivalents.
Good for
Read dates on forms and records. Convert in either direction, compare transition years, or add a month and day for an exact date.
Limits
Supports Gregorian years 1873–9999, Japanese eras from Meiji 6 onward, and Minguo or pre-Minguo years. No lunar calendar conversion. Future Japanese years assume Reiwa continues. All conversion stays in your browser. Thai Buddhist dates support CE 1941 onward; earlier Thai calendars are not converted.