Enter the year number inside the era, for example Reiwa 6 uses 6.
Year System Converter
Switch between Gregorian, ROC, Japanese era, and Buddhist years.
Source
Choose a year system
Examples
Current input
Choose a system and enter a year.
Enter a supported year to see every conversion immediately.
Results
All supported systems
Gregorian
SourceFour-digit year.
ROC
SourceAvailable from 1912 onward.
Japanese era
SourceSupports Meiji through Reiwa.
Buddhist
SourceCalculated as Gregorian +543.
Quick guide
Use cases, answers, and nearby tools
Compact below-tool notes that help first-run users and repeated visitors move faster without changing the main interface.
Chinese search: 令和換算、令和幾年、平成西元、昭和西元、日本年號換算、佛曆換算
How to use
Run a clean first pass
- Enter a year and select the corresponding system — Gregorian, ROC, Japanese era, or Buddhist calendar.
- The result area shows corresponding years in all other systems.
- Toggle the language switch when you need the same conversions side-by-side in English and Chinese — useful for citations and bilingual notes.
Examples
Real jobs this page helps with
- Cross-system year lookupConvert a Gregorian year to ROC, Japanese era, and Buddhist calendar at once for data consolidation.
- Japanese product and document labelsJapanese packaging and paperwork often use the Reiwa year — paste it to convert back to Gregorian and ROC.
- Historical and academic citationsMap Meiji, Taisho, and Showa era years to Gregorian for sources, timelines, and footnotes.
FAQ
What people usually want to know
What Gregorian year is Reiwa 1, and Reiwa 6?
Reiwa 1 is 2019. The formula is Reiwa N = 2018 + N, so Reiwa 6 is 2024 and Reiwa 8 is 2026.
What is 2024 in the Japanese Reiwa era?
2024 is Reiwa 6 (2024 − 2018 = 6).
How do Heisei and Showa convert to Gregorian?
Heisei 1 is 1989 (Heisei N = 1988 + N); Showa 1 is 1926 (Showa N = 1925 + N). This tool supports Meiji, Taisho, Showa, Heisei, and Reiwa.
How do you convert the Buddhist calendar to Gregorian?
Buddhist Era (Thai / Theravada) = Gregorian + 543. For example, 2024 CE corresponds to BE 2567.
How is the era-transition year handled?
Japanese eras change on a specific date; this tool maps by year and uses the dominant era for a transition year (e.g. 2019 maps to Reiwa 1, not Heisei 31).