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Converted dates use the tabular (Umm al-Qura) calendar and may differ by ±1 day from moon-sighting-based calendars. For religious observances, confirm with your local mosque.
Muslims live by two calendars at once: the Gregorian calendar for work and school, and the Hijri (Islamic) calendar for worship — Ramadan, Eid al-Fitr, Eid al-Adha, Hajj, and the sacred months all follow the lunar Hijri calendar. The Hijri Date Converter from FistHost converts dates in both directions instantly: type any Gregorian date to see its Hijri equivalent, or enter a Hijri date to find the matching Gregorian one. It's free, needs no sign-up, and works entirely in your browser.
Planning Ramadan, checking when the 15th of Sha'ban falls, converting a birth date from one calendar to the other, or preparing Islamic documents — this tool handles it all in seconds.
The Hijri calendar is a lunar calendar of 12 months alternating between 29 and 30 days, making a year of about 354 days — roughly 11 days shorter than the solar Gregorian year. That's why Ramadan moves backwards through the seasons year after year.
Gregorian → Hijri: the tool uses your browser's built-in internationalization API, Intl.DateTimeFormat('en-u-ca-islamic-umalqura', …), which implements the Umm al-Qura calendar — the official calendar of Saudi Arabia, computed from precise lunar-visibility tables. No external library or internet lookup is needed; the conversion happens locally on your device.
Hijri → Gregorian: the reverse direction uses day-arithmetic on the tabular (Kuwaiti) Islamic algorithm, a well-known mathematical approximation of the lunar calendar that converts a Hijri year-month-day into a day count and back into a Gregorian date.
The twelve Hijri months are: Muharram, Safar, Rabi' al-Awwal, Rabi' al-Thani, Jumada al-Ula, Jumada al-Akhirah, Rajab, Sha'ban, Ramadan, Shawwal, Dhul-Qa'dah, Dhul-Hijjah. The tool also shows the weekday and can format dates like "15 Ramadan 1447."
Combining calendars for travel or events? The prayer-times tool and the countdown-timer pair perfectly with this converter for planning Ramadan or an Umrah trip. You can also check how many days lie between two dates with the time zone converter.
Fatima wants to know the Gregorian date of 1 Ramadan 1447 so she can request time off work. She switches the tool to Hijri → Gregorian, enters day 1, month Ramadan, year 1447, and clicks convert. The tabular algorithm walks the lunar day-count: 1446 full Hijri years × ~354.37 days plus the days of the 8 months before Ramadan in year 1447 (Muharram, Safar, Rabi' al-Awwal, Rabi' al-Thani, Jumada al-Ula, Jumada al-Akhirah, Rajab, Sha'ban), then maps the total onto the Gregorian calendar — returning approximately 18 February 2026. Fatima now knows to plan her leave around mid-to-late February. Going the other way, entering 1 March 2026 in Gregorian → Hijri mode returns about 12 Ramadan 1447, letting her track her fasts by the Hijri date.
The converter becomes far more useful when you know which dates to look up. Here are the anchor points of the Islamic year: 1 Muharram — the Islamic New Year. 10 Muharram — Ashura, the Day of Atonement, a recommended fast. 12 Rabi' al-Awwal — the Prophet Muhammad's birthday (peace be upon him), celebrated widely in Pakistan. 27 Rajab — Laylat al-Mi'raj, the Night Journey. 15 Sha'ban — Shab-e-Barat, the Night of Forgiveness. 1 Ramadan — the first fast. 27 Ramadan (odd nights of the last ten) — the search for Laylat al-Qadr, the Night of Decree, better than a thousand months. 1 Shawwal — Eid al-Fitr. 8-13 Dhul-Hijjah — the days of Hajj. 10 Dhul-Hijjah — Eid al-Adha. Convert any of these to plan travel, qurbani, or time off work months in advance.
A Hijri year is about 354.37 days — roughly 11 days shorter than a Gregorian year — so every Islamic date arrives about 11 days earlier each Gregorian year and cycles through all four seasons over about 33 years. Older Pakistanis remember fasting Ramadan in the long, hot days of June; their children will fast it in the short, cool days of December and January. This drift is a feature, not a bug: it means the hardship and ease of fasting, and the pilgrimage of Hajj, are shared across seasons and climates over a lifetime. When you convert a birth anniversary or a wedding date between the calendars, expect the Gregorian equivalent to shift by about 11 days every year.
Many Pakistani families record nikah (marriage) dates, birth dates, and death anniversaries in the Hijri calendar on nikahnamas and family records, while schools and passports use Gregorian dates. The converter bridges the two: a child born on 5 Ramadan 1445 becomes a passport-ready Gregorian date in one click, and an elder's Hijri birth date can be turned into a Gregorian one for a CNIC application. When filling official forms, use the Gregorian result but keep the original Hijri date written alongside it, since NADRA and other offices work in the Gregorian calendar.
Because many countries begin Hijri months on physical moon sighting, which can shift a month's start by a day relative to the computed Umm al-Qura calendar. Both are legitimate; follow your local announcement for worship.
Saudi Arabia's official Islamic calendar, based on precise astronomical calculations of the moon's visibility over Makkah. It is the most widely used computational Hijri calendar in the world.
Yes — the converter works for any date, past or future, so you can plan Ramadan, Hajj, and Eid travel years ahead.
Only to load the page. The actual conversion uses your browser's built-in calendar engine, so it works offline once loaded.
Completely free, unlimited conversions, no account required.
Mosques, madrasas, and Islamic organisations can go beyond a printed calendar: with FistHost web hosting at just $0.99/month — including a free domain name — you can run a community website showing Hijri dates, prayer times, and Ramadan announcements that your whole neighbourhood can check from their phones. Launch it in an afternoon at fisthost.com.
Bloggers, this is your lane too: an Islamic lifestyle blog on FistHost for $0.99/mo is the cheapest way to publish Ramadan guides, Seerah articles, and dua collections for readers around the world. Reliable hosting, a free domain, and one-click WordPress — everything you need is at fisthost.com from FistHost.
Keeping track of both calendars is part of Muslim life, and this converter makes it effortless. Bookmark the page, and explore the companion qibla-finder and prayer-times tools for a complete Islamic toolkit — all free, from FistHost.
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