Ramadan Date Calculator — Hijri ⇄ Gregorian
Ramadan Date Calculator
Convert between Hijri and Gregorian dates in both directions.
Based on the tabular Islamic calendar; a local moon sighting can shift the result by one day.
Two-way date conversion
Type a Gregorian date to see the Hijri equivalent, or enter a Hijri day, month and year to see the Gregorian date. Both directions update instantly.
How to use it
- The Gregorian box opens on today.
- The Hijri fields default to 1 Ramadan 1448.
- Change either side; the matching result updates on its own.
Why results can differ by a day
This converter uses the tabular Islamic calendar, an arithmetic model with a fixed 30-year cycle. Real Hijri months begin with the sighting of the crescent, so an official date in your country can be one day before or after the tabular date.
Every calculation on this page runs inside your own browser. Nothing you type is uploaded or stored on our servers.
Frequently asked questions
Which Hijri year is 2027?
Most of 2027 falls in 1448 AH, with 1449 AH beginning in mid-December 2027.
Is the tabular calendar reliable for planning?
It is accurate to within a day and is ideal for planning ahead; confirm religious dates with your local authority closer to the time.