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How to Calculate Your Age in Hijri Years - Complete Guide
How to Calculate Your Age in Hijri Years - Complete Guide
Wondering "how old am I in Hijri years?" You're not alone — millions of people in Saudi Arabia and the Muslim world search this monthly. The answer is slightly different from your Gregorian age, and here's why.
The Simple Rule
Your Hijri age is always slightly higher than your Gregorian age because the Hijri (lunar) year is about 11 days shorter than the Gregorian (solar) year.
Quick Formula
Hijri Age ≈ Gregorian Age × (365.25 / 354.37)
That's roughly a 3% increase. So a 30-year-old (Gregorian) is about 30.9 years old (Hijri).
Step-by-Step Manual Method
- Convert your birth date from Gregorian to Hijri.
- Get today's Hijri date.
- Subtract the years, adjusting for month and day.
Example: Born on 15 March 1990 → 18 Ramadan 1410 AH. Today is 5 Muharram 1447 AH. Hijri age = 1447 − 1410 = 37 years (adjusted for months and days).
The Difference Over a Lifetime
| Gregorian Age | Approximate Hijri Age | Difference (days) |
|---|---|---|
| 10 years | ~10 years, 3 months | ~110 days |
| 30 years | ~30 years, 11 months | ~330 days |
| 50 years | ~51 years, 6 months | ~550 days |
| 70 years | ~72 years, 2 months | ~770 days |
Why Your Hijri Birthday Matters
- Religious duties: Reaching maturity (bulugh) in Islamic tradition uses Hijri years.
- Zakat: The one-year wealth threshold (hawl) is a Hijri year.
- Retirement age in some Gulf systems: Calculated in Hijri years.
- Personal preference: Many families celebrate both.
Instant Free Calculator
Skip the math — enter your Gregorian birth date in our free age calculator and get your Hijri age instantly plus your total days lived.
FAQ
Is a Hijri year really shorter?
Yes. A regular Hijri year is 354 days vs 365 days for Gregorian.
Which age do I write in official Saudi forms?
Most Saudi government systems accept both, but Hijri is default for national ID and passport records.
Do I get one extra birthday celebration per ~33 years?
Yes! Every ~33 solar years, you gain one extra Hijri year.
Beyond Age: Manage Time with Daqiq
Whether it's due dates, invoice cycles, or salary periods — Daqiq handles Hijri and Gregorian side-by-side.