Hijri Date Converter
Convert dates from Gregorian to Hijri and from Hijri to Gregorian with the official Umm al-Qura calendar. Accurate, instant and free.
النسخة العربية ↗How to convert a date
- Choose the direction: Gregorian to Hijri or Hijri to Gregorian.
- Enter your date. For a Hijri date, pick the day, the month and the year (AH).
- The converted date appears instantly with the day of the week. Tap Copy result to paste it into a form or message.
What is the Umm al-Qura calendar?
The Hijri calendar is lunar. Every month begins with a new moon, so a Hijri year has 354 or 355 days, about 11 days shorter than a Gregorian year. That is why Ramadan and the two Eids arrive roughly 11 days earlier each year.
Umm al-Qura is the calculated form of the Hijri calendar that Saudi Arabia uses for official business. Rather than waiting for the crescent to be sighted, it relies on astronomical calculation, so dates are fixed years in advance. This converter uses the same Umm al-Qura data that ships with modern browsers, which means the result lines up with dates you see on Saudi government services, residency permits and official letters.
The twelve Hijri months
| # | Month | Worth knowing |
|---|---|---|
| 1 | Muharram | First month. 1 Muharram is the Islamic New Year. |
| 2 | Safar | |
| 3 | Rabi’ al-Awwal | Many people mark the Prophet’s birthday on the 12th. |
| 4 | Rabi’ al-Thani | |
| 5 | Jumada al-Ula | |
| 6 | Jumada al-Akhirah | |
| 7 | Rajab | One of the four sacred months. |
| 8 | Sha’ban | The month before Ramadan. |
| 9 | Ramadan | The month of fasting. |
| 10 | Shawwal | Eid al-Fitr falls on 1 Shawwal. |
| 11 | Dhu al-Qa’dah | A sacred month. |
| 12 | Dhu al-Hijjah | Hajj season. Eid al-Adha falls on the 10th. |
A quick rule of thumb
If you only need a rough idea of the year, these formulas get you close. They are approximations, which is exactly why an exact converter matters for anything official.
Hijri year ≈ (Gregorian year − 621.5643) × 1.030684
Example: 1448 × 0.970229 + 621.56 ≈ 2026.5, so most of Hijri year 1448 falls in 2026 and early 2027.
Frequently asked questions
What is today’s Hijri date?
The tool shows today’s date in both calendars at the top, taken automatically from your device’s clock.
Can I use this for official documents?
It follows Umm al-Qura, the official calendar of Saudi Arabia, so it matches government dates. For deadlines that carry penalties, confirm with the issuing authority as well.
Why does another website show a date one day off?
Some sites use moon sighting or a simple arithmetic (tabular) Hijri calendar. A difference of one day between methods is normal.
Which years are supported?
Hijri years 1300 to 1600, which covers roughly 1882 to 2174 in the Gregorian calendar.
How many days are in a Hijri month?
Either 29 or 30, never 31. If you type day 30 for a month that only has 29 days, the converter tells you the date does not exist.
