Two-way converter
Gregorian to Hijri converter
Convert any date between the Gregorian and Hijri calendars, instantly and free. Pick a calculation method first — most converters hide this choice, and it is the reason two sites can show different dates for the same day.
Tabular: worldwide arithmetic calendar. Umm al-Qura: Saudi Arabia's official calendar.
Showing Umm al-Qura dates (Saudi Arabia's official calendar). Why two methods?
Showing tabular (arithmetic) dates. Why two methods?
Gregorian → Hijri
Hijri → Gregorian
Which method should you use?
For everyday conversion — a birthday, an anniversary, a document date — Umm al-Qura is the standard choice: it is Saudi Arabia's official calendar and matches what most Hijri date sites show. Switch to tabular if you need the fixed arithmetic calendar, for example to match an older printed table or software that uses the civil (Kuwaiti) algorithm. When the two disagree, the methodology page explains why, and neither one is "wrong".
Related tools: Hijri age calculator · date difference · Hijri calendar 1448
Frequently asked questions
How do I convert a Gregorian date to Hijri?
Pick the Gregorian date above — the Hijri equivalent appears instantly. Switch between the Tabular and Umm al-Qura methods to compare the two calculations.
How accurate is this converter?
It is as accurate as calculation gets: the tabular method matches the worldwide arithmetic calendar exactly, and Umm al-Qura follows the official Saudi calendar. The observed date in your country can still differ by a day or two around month beginnings.
Can I convert a Hijri date to Gregorian?
Yes — use the Hijri day, month and year pickers on the right. The Gregorian equivalent, with the day of the week, appears below.
Why do two converters sometimes show different Hijri dates?
Most differences come down to the method: tabular arithmetic versus Umm al-Qura versus a local moon-sighting adjustment. This converter shows both methods so you can see exactly where they diverge.
