Gregorian Date Converter
This calculator converts Gregorian dates to and from all 13 other calendars on one page.
- Enter a date, pick the systems, and the exact equivalent appears instantly.
Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.
Indata
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Användningssteg
This hub converts Gregorian dates to och from every other kalender system on one page. Ange the day, month, och year, pick the two systems, och the exact equivalent appears direkt — the konvertering goes through the Julian Day Number, so each system's own epoch och leap rules are applied.
- 1
Steg 1
Skriv datumet eller de två datum som ska jämföras.
- 2
Steg 2
När du angett värdena klickar du på « Beräkna » för att visa resultatet.
- 3
Steg 3
Spara eller dela resultatet efter behov.
Användningsområden
Any Gregorian pair, one page
Instead of a dedicated page per system pair, this hub converts a Gregorian date to any other system instantly — pick the two calendars and enter the date once.
Cross-calendar planning
The same date lands differently every year across calendars; converting the full date — day, month, and year — keeps occasions and deadlines accurate in both systems.
Tips
- 1
Confirm the calendar system before converting.
- 2
Use the YYYY-MM-DD format for reliability.
- 3
Time-zone differences can shift a date by a day.
Vanliga misstag
Entering a Gregorian date while the source system is set to another calendar — check the from-system before converting.
Adding or subtracting a fixed number of years to move between calendars instead of converting the full date.
Vanliga frågor
Which calendars can I convert between here?
How is the conversion computed?
Why do some results say approximation?
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