Gregorian to Hijri Date Converter

What Is the Hijri-Gregorian Date Converter?

Whether you're completing an official Saudi government form, checking when your residency permit expires, calculating your age in the Islamic calendar, or planning around Ramadan and Eid — this tool converts any date between the Gregorian and Hijri calendars instantly, right in your browser.

The Hijri calendar is the official calendar of Saudi Arabia and is widely used across the Islamic world for religious observances, government documents, and national occasions. Because it follows the lunar cycle, each Hijri year is approximately 10–12 days shorter than a Gregorian year, which is why Islamic events like Ramadan, Eid Al-Fitr, and Hajj shift through different seasons over the years. Our converter uses the official Um Al-Qura algorithm to deliver accurate, instant results.

How to Use the Date Converter

Convert Gregorian to Hijri

Select the "Gregorian → Hijri" tab at the top of the tool, then choose the day, month, and year from the dropdown menus. The result appears instantly — showing the full Hijri month name, day number, and day of the week.

Convert Hijri to Gregorian

Select the "Hijri → Gregorian" tab, then choose the Hijri day, month, and year. The corresponding Gregorian date is displayed immediately. No search button needed — results update in real time as you select dates.

Features of This Date Converter Tool

• Powered by the Um Al-Qura Algorithm: This tool uses the official Um Al-Qura algorithm, the calculation method officially adopted by the Kingdom of Saudi Arabia. Results match the Saudi government calendar used in official documents and national planning.
• Instant, Server-Free Calculations: No data is sent to any server. All calculations happen locally in your browser, meaning lightning-fast results and complete privacy.
• Works Offline: Once the page loads, you can continue using the tool even without an internet connection — perfect for travel or areas with limited connectivity.
• Fully Responsive Design: Works seamlessly on smartphones, tablets, and desktop computers.
• 100% Free: No registration, no subscription, no pop-up ads. Open to everyone.
• Wide Date Range (1900–2100): Convert historical dates or plan far into the future with the same accuracy.

Hijri Calendar Months in Order

The Islamic calendar consists of 12 lunar months, each lasting 29 or 30 days depending on the moon's cycle:

1. Muharram — The first month and one of the four sacred months in Islam.
2. Safar — The second month of the Hijri year.
3. Rabi' Al-Awwal — The month of the Prophet Muhammad's birth (peace be upon him).
4. Rabi' Al-Thani (Rabi' Al-Akhir) — The fourth month.
5. Jumada Al-Awwal — The fifth month.
6. Jumada Al-Thani (Jumada Al-Akhira) — The sixth month.
7. Rajab — A sacred month; Isra' and Mi'raj is observed in this month.
8. Sha'ban — The month before Ramadan, notable for voluntary fasting.
9. Ramadan — The month of fasting and one of the Five Pillars of Islam.
10. Shawwal — Begins with Eid Al-Fitr celebrations.
11. Dhul Qa'dah — A sacred month; Hajj preparations begin.
12. Dhul Hijjah — The month of Hajj, Eid Al-Adha, and the Day of Arafah.

Hijri vs. Gregorian Calendar — Key Differences

The Gregorian calendar is based on the solar cycle (365 days, or 366 in a leap year), while the Hijri calendar follows the lunar cycle (354–355 days). This annual difference of 10–12 days means that Islamic occasions like Ramadan and Eid Al-Adha drift through the seasons over time, completing a full Gregorian cycle approximately every 33 years.

Another key difference: the Gregorian day begins at midnight, while the Hijri day begins at sunset. The current Hijri year is 1447–1448 AH, corresponding to Gregorian year 2026.

When Do You Need to Convert Dates?

There are many everyday situations in Saudi Arabia and the wider Arab world where knowing both calendar dates is essential:

• Official documents: Many Saudi government forms require your date of birth in the Hijri calendar, even if you only know it in Gregorian.
• Iqama and visa expiry: Residency permits are often issued with Hijri dates — you need the Gregorian equivalent to book flights or plan renewals on time.
• Contracts and agreements: Many Saudi contracts include both calendar dates side by side and require cross-verification.
• Medical and insurance forms: Birth dates in Hijri format are frequently required.
• Religious planning: Knowing when Ramadan starts or when Eid Al-Adha falls well in advance helps with work and travel planning.
• Salary and payroll: Some employers in Saudi Arabia use the Hijri calendar for salary and benefits cycles.