Islamic (Hijri Calendar) ⇄ Lunar (Gregorian Calendar) Converter
Hijri to Gregorian date converter – Complete Guide
Introduction
The Islamic calendar, also known as the Hijri calendar, is a lunar calendar used by Muslims around the world to determine important religious events such as Ramadan, Hajj, Eid al-Fitr, and Eid al-Adha. On the other hand, most of the modern world follows the Gregorian calendar, which is a solar calendar.
Because the two calendars are based on completely different systems (moon vs. sun), dates in the Islamic calendar do not directly match with dates in the Gregorian calendar. That’s why a converter tool is needed to easily switch between them.
Difference Between Islamic (Hijri) and Gregorian Calendars
- Islamic Calendar (Hijri)
- Lunar-based: follows the moon cycle.
- 12 months, each month has 29 or 30 days depending on moon sighting.
- Total year length: about 354 or 355 days.
- Used for religious purposes by Muslims.
- Gregorian Calendar
- Solar-based: follows the sun’s position in relation to the earth.
- 12 months, fixed lengths (28–31 days).
- Total year length: about 365 or 366 days (leap year).
- Used internationally in daily life, business, and government.
👉 Because the Islamic year is shorter by about 10–11 days, Islamic dates shift backward each year compared to the Gregorian calendar.
Why Do You Need an Islamic Date to Gregorian Date Converter?
- To know Gregorian dates for Islamic occasions (Ramadan, Eid, Hajj).
- To convert your Islamic date of birth into a Gregorian date.
- To create accurate Islamic event calendars for schools, mosques, and organizations.
- For researchers and historians comparing Islamic history with global timelines.
How Does the Converter Work?
An Islamic ⇄ Gregorian converter uses mathematical formulas known as the Julian Day Number system. This system helps bridge the gap between lunar and solar calculations.
Steps involved:
- User selects an Islamic (Hijri) date or Gregorian date.
- The tool calculates its equivalent Julian day number.
- That number is then converted back into the opposite calendar system.
- The result is displayed instantly.
Example Conversion
- Islamic Date: 1 Muharram 1447 AH
- Equivalent Gregorian Date: 7 June 2025
Another example:
- Gregorian Date: 14 September 2025
- Equivalent Islamic Date: 21 Rabi al-Awwal 1447 AH
Benefits of Online Islamic Date to Gregorian Date Converters
- Quick and Easy: no manual calculation needed.
- Accurate: based on well-tested algorithms.
- Global Access: works for Muslims worldwide.
- Helpful for Planning: religious events, travel for Hajj/Umrah, school timetables.
Try It Yourself
At onlinequranteaching.site, you can use a free Islamic ⇄ Gregorian converter. Simply select your date, click convert, and see the exact result. The tool is styled to look like a real calendar, making it simple even for beginners.
Conclusion
Understanding the difference between the Islamic (Hijri calendar) and the Gregorian (Solar calendar) is essential for Muslims and non-Muslims alike. A converter tool saves time, ensures accuracy, and helps people worldwide keep track of important dates.