How it works
Your age in Hijri years is counted the same way as a normal age — complete years, then complete months, then days — but on the Hijri calendar. The calculator converts your birth date and today’s date to the Umm al-Qura calendar and finds the difference. When a day must be borrowed, it uses the real length (29 or 30 days) of the previous Hijri month.
Hijri age = today (Hijri) − birth date (Hijri), counted in years, months, daysWorked example. Someone born on Tuesday 15 May 1990 was born on 20 Shawwal 1410 AH. On 5 November 2026 (25 Jumada al-Ula 1448 AH) they are 37 Hijri years, 7 months and 5 days old — but 36 years old in Gregorian years.
Why the Hijri age is higher
A Hijri year has 354 or 355 days, about 11 days shorter than a Gregorian year. Over 33 Gregorian years the difference adds up to about one full year, so by your mid-thirties your Hijri age is one year higher, and by about 66 it is two years higher.
| Gregorian age | Approximate Hijri age |
|---|---|
| 18 | 18 – 19 |
| 33 | 34 |
| 40 | 41 |
| 60 | 61 – 62 |
| 66 | 68 |
When the Hijri age matters
Some official procedures in Saudi Arabia historically used Hijri dates, and many families mark ages and anniversaries by the Hijri calendar. Religious rulings that depend on age (such as reaching adulthood) are traditionally counted in lunar years. For official purposes always check which calendar the authority uses.
If you only know your Hijri birth date, choose “Hijri” above. To convert any single date, use the Hijri ↔ Gregorian converter; for your age in Gregorian years with total days and weeks, see the age calculator.