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Hijri Year Calculator

Convert between Hijri Islamic calendar (AH) and Gregorian (AD/CE) years. Perfect for Islamic dates, birth years, and historical events.

Current Year

2025
Gregorian Year (AD/CE)
Common Era / Anno Domini
1446
Hijri Year (AH) - هجري
After Hijra / بعد الهجرة
Gregorian to Hijri Islamic
Enter any year from 622 AD onwards (start of Islamic calendar)
Quick Convert:
Hijri Islamic to Gregorian
Enter any Hijri year from 1 AH onwards
Quick Convert:
Age Calculator
Enter Your Birth Year
Important Islamic Years
Historical Events
Hijri Year Gregorian Year Event
Islamic Months
  1. 1. Muharram - محرم
  2. 2. Safar - صفر
  3. 3. Rabi' al-awwal - ربيع الأول
  4. 4. Rabi' al-thani - ربيع الثاني
  5. 5. Jumada al-awwal - جمادى الأولى
  6. 6. Jumada al-thani - جمادى الثانية
  1. 7. Rajab - رجب
  2. 8. Sha'ban - شعبان
  3. 9. Ramadan - رمضان
  4. 10. Shawwal - شوال
  5. 11. Dhu al-Qi'dah - ذو القعدة
  6. 12. Dhu al-Hijjah - ذو الحجة
Year Conversion Reference
Gregorian Year (AD/CE) Hijri Year (AH) Difference Notes

About Hijri Islamic Calendar

The Hijri calendar (التقويم الهجري) is a lunar calendar used in Islamic countries and by Muslims worldwide. It begins from the year of Prophet Muhammad's migration (Hijra) from Mecca to Medina in 622 CE.

Key Information

  • Calendar Type: Lunar calendar (354-355 days per year)
  • Starting Point: 622 CE (1 AH)
  • Months: 12 lunar months
  • Year Length: Approximately 11 days shorter than Gregorian year
  • Usage: Religious observances, Islamic countries

Conversion Formula

Approximate conversion:

Hijri Year ≈ (Gregorian Year - 622) × 1.030684

Gregorian Year ≈ (Hijri Year ÷ 1.030684) + 622

Note: This is an approximation due to the lunar nature of the Hijri calendar

Common Uses

  • • Islamic religious observances
  • • Ramadan and Eid dates
  • • Hajj pilgrimage timing
  • • Islamic historical events
  • • Official documents in Islamic countries
  • • Islamic banking and finance
  • • Religious education
  • • Cultural celebrations

Important Note

Lunar Calendar: The Hijri calendar is based on lunar months, making it approximately 11 days shorter than the Gregorian solar year. This means Islamic holidays shift earlier each Gregorian year. Exact date conversions require astronomical calculations.

Quick Reference

×1.031
Multiply by 1.031 to convert
Gregorian to Hijri (approx.)

Calendar Comparison

  • 🌙 Hijri: 354-355 days (lunar)
  • ☀️ Gregorian: 365-366 days (solar)
  • 📅 Difference: ~11 days shorter
  • 🔄 Cycle: 33 Gregorian ≈ 34 Hijri years

Sacred Months

  • • Muharram (1st month)
  • • Rajab (7th month)
  • • Dhu al-Qi'dah (11th month)
  • • Dhu al-Hijjah (12th month)

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