Hijri–Gregorian converter
Convert dates between the Hijri (Umm al-Qura) calendar and the Gregorian calendar, both ways. Pick a Gregorian date to see its Hijri equivalent in four formats, or enter a Hijri year, month, and day to get the Gregorian date. Everything is computed in your browser.
To convert a date between the Hijri and Gregorian calendars, choose the direction and enter the date. From Gregorian to Hijri the result appears in four formats; from Hijri to Gregorian the civil date appears immediately, all on the official Umm al-Qura table. It is free, needs no sign-up, and your dates never leave your browser.
How to use it
Choose the direction: Gregorian to Hijri, or Hijri to Gregorian. For a Gregorian date, pick it in the calendar field or use the today button, and the Hijri date appears in four formats ready to copy. For a Hijri date, enter the year, the month, and the day, and the Gregorian date appears immediately.
When it helps
Official documents, contracts, and invitations in Saudi Arabia carry both calendars, and the Umm al-Qura calendar is the official reference. Converting by hand invites a one-day mistake, and printed tables cover only a few years. This tool converts on the Umm al-Qura table itself, from 1318 to 1500 AH.
Common questions
Which Hijri calendar does this tool use?
The Umm al-Qura calendar, the official civil calendar of Saudi Arabia. The conversion runs on the same Umm al-Qura table that official systems use, in both directions, and the supported range is 1318 to 1500 AH.
Why does my date convert differently in another app?
Different Hijri tables exist, and some apps use an astronomical approximation that disagrees with the official table on more than half of all days. This tool follows the official Umm al-Qura table only.
Why does the tool reject day 30 of some months?
A Hijri month is 29 or 30 days, and the Umm al-Qura table fixes the length of every month. When a month has 29 days, its 30th day does not exist, and the tool says so instead of guessing.
Are my dates sent anywhere?
No. The conversion happens entirely in your browser. Your dates are never uploaded, stored, or shared.
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