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.
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.
- Switch language to use the same results for cross-language reference or documentation.
Examples
Real jobs this page helps with
- Cross-system year lookupConvert a Gregorian year to ROC, Japanese era, and Buddhist calendar for data consolidation.
- Form and content translationQuickly confirm the correct year correspondence when working with documents in different year systems.
FAQ
What people usually want to know
- Is this a full calendar converter?
- No. It focuses on year system conversion, not full dates, months, or time zones.
- Does it save my input?
- Year conversion runs locally; language preference may persist on the same device.