Instant Hijri ↔ Gregorian Date Converter
Convert dates between the Islamic (Hijri) calendar and the Gregorian calendar in seconds.
Gregorian to Hijri
Hijri to Gregorian
Note: This calculator uses the tabular (civil) Hijri method. Observational moon-sighting calendars can differ by a day.
What Is the Hijri Calendar?
The Hijri calendar (also called the Islamic calendar) is a lunar calendar used by Muslims around the world for religious dates and events. It begins from the Hijrah (migration) of Prophet Muhammad from Makkah to Madinah, and years are marked as AH (Anno Hegirae).
Unlike the Gregorian calendar, which follows the solar year, the Hijri calendar is based on moon cycles. A Hijri year has about 354 or 355 days, making it around 10–11 days shorter than a Gregorian year.
Why a Hijri Calendar Calculator Is Useful
Converting between calendars is important for everyday planning, especially when dealing with:
- Ramadan start and end planning
- Eid al-Fitr and Eid al-Adha date conversion
- Islamic birthdates and anniversaries
- Historical Islamic events in modern date format
- Travel, school, and work scheduling across regions
How This Calculator Works
1) Gregorian to Hijri Conversion
The tool first converts your Gregorian date to a Julian day number (a continuous day count), then maps that day count to the corresponding Hijri year, month, and day.
2) Hijri to Gregorian Conversion
For Hijri input, the reverse process is used: Hijri date → Julian day number → Gregorian date. This makes conversion fast and consistent in both directions.
3) Calendar Accuracy Note
Islamic months in real life may be declared by local moon sighting authorities, which can shift dates by one day. So this calculator is excellent for planning and education, but official religious announcements should always be checked locally.
Quick Tips for Better Results
- Use the “Use Today” button to instantly find today’s Hijri date.
- When converting Hijri dates, enter the correct year in AH format (for example, 1447).
- Remember that some months have 29 days and others 30 days.
- For official fasting or Eid confirmation, consult your local mosque or authority.
Frequently Asked Questions
Is this an Islamic date finder for Ramadan and Eid?
Yes. You can use it as a Ramadan date finder, Eid converter, or general Islamic date calculator. Just keep in mind the moon-sighting disclaimer.
Why are Hijri dates sometimes different between countries?
Different regions may use local moon sightings, global sightings, or pre-calculated calendars. That difference causes occasional one-day variation.
Can I use this for historical dates?
Yes, for practical conversion and educational use. For rigorous academic or legal records, cross-check with specialized historical calendar references.
Final Thoughts
A good Hijri calendar calculator saves time and removes guesswork when converting Islamic and Gregorian dates. Whether you’re planning Ramadan, tracking important events, or simply curious about today’s Hijri date, this tool gives you a fast and reliable result in a clean, easy interface.