Hijri Birthday Calculator: Convert Your Date of Birth
Enter your Gregorian date of birth to see it in the Hijri calendar, your age in Hijri years, and the date of your next Hijri birthday.
How the conversion works
The tool uses the Umm al-Qura calendar, the official Hijri calendar of Saudi Arabia, which is built into modern browsers. It converts your date of birth to the Hijri day, month and year, then counts your age in complete Hijri years.
Why your Hijri age is higher
The Hijri year is lunar and lasts about 354 or 355 days, roughly eleven days shorter than a Gregorian year. Your age in Hijri years is therefore slightly higher, and the gap grows by about one full year every 33 years.
A note on accuracy
Hijri dates can differ by one day between countries, because some start each month based on local moon sighting rather than a calculated calendar. If you need the date for an official purpose, check the calendar used in your country.
When the day gets close, browse birthday wishes by person or turn your message into a personalized card.
Frequently asked questions
Which calendar does this tool use?
The Umm al-Qura calendar, the calculated Hijri calendar used in Saudi Arabia and supported by most browsers and operating systems.
Why is my Hijri date one day off from a document?
In some countries the start of each Hijri month is set by moon sighting, which can move it a day earlier or later than the calculated calendar. The difference is usually no more than one day.
When is my next Hijri birthday?
The tool shows the Gregorian date that matches your Hijri birth day and month in the coming year. That date moves about eleven days earlier every year.