Age Calculator in Hijri and Gregorian
العربيةEnter your date of birth in either calendar to get your exact age in Hijri and Gregorian years, the weekday you were born, the total days you have lived and how long until your next birthday in each calendar.
Updated October 27, 2026Runs in your browser — nothing you enter is stored
Why your Hijri age is higher
Because a Hijri year is about 11 days shorter than a Gregorian year, your age in Hijri years is always a little higher. The gap grows by roughly one year every 33 years: someone who is 33 in Gregorian years is about 34 in Hijri years, and at 66 they are close to 68.
Knowing both ages is useful wherever Hijri ages are used, including some official procedures in Saudi Arabia, and for anyone curious about their age in the Islamic calendar.
How the calculator works
- 1It converts your birth date to the other calendar using Umm al-Qura.
- 2It subtracts the birth date from today in years, then months, then days, separately in each calendar — allowing for 29- or 30-day Hijri months and 28- to 31-day Gregorian months.
- 3It counts the total days between the two dates and the whole weeks.
- 4It finds the next date that matches your birth day and month in each calendar to show your next birthday and the days remaining.
If you were born on 29 February, your Gregorian birthday falls on 28 February in common years. If you were born on the 30th of a Hijri month, your birthday falls on the 29th when that month is short.
Gregorian vs Hijri age: examples
| Gregorian age | Approximate Hijri age | Difference |
|---|---|---|
| 10 years | 10 years 4 months | about 4 months |
| 18 years | 18 years 7 months | about 7 months |
| 30 years | 30 years 11 months | about 11 months |
| 40 years | 41 years 3 months | 1 year 3 months |
| 60 years | 61 years 10 months | 1 year 10 months |
Figures are approximate because the exact gap depends on the birth date itself. For a detailed Gregorian-only calculation you can also use our age calculator.
Frequently asked questions
How do I find my age in Hijri years?
Choose the calendar your birth date is in, enter the day, month and year, and press Calculate age. You will see your age in both calendars.
Why is my Hijri age higher?
Hijri years are about 11 days shorter, so the difference adds up to a full year roughly every 33 years.
Is my birth date stored?
No. The calculation runs in your browser and nothing is sent to a server.
I only know my Hijri birth year. What can I do?
Enter 1 Muharram of that year for an estimate; the result may be up to a year out.
How many days have I lived?
The calculator shows the total number of days from your birth date to today, plus the number of whole weeks.