Gregorian to Hijri Converter
Convert any Gregorian date to Hijri (official Umm al-Qura calendar).
Convert any Gregorian date to Hijri (official Umm al-Qura calendar).
Calculate age and date differences or convert between Gregorian and Hijri dates.
Exact age in years, months and days.
Open calculatorDays and weeks between two dates.
Open calculatorConvert any Gregorian date to Hijri (official Umm al-Qura calendar).
Convert a Hijri date to Gregorian with the weekday.
Open calculatorConverting Gregorian dates to Hijri is a daily need in Saudi Arabia, where official transactions, contracts, and government appointments all run on the Hijri calendar. This converter uses the Umm al-Qura calendar — the Kingdom's official calendar issued by KACST — not approximate astronomical formulas.
Enter a Gregorian date to get its full Hijri equivalent with the weekday. Conversion uses the Umm al-Qura calendar data built into your browser, matching what official bodies use.
That formula is a mental estimate only; actual conversion uses precise Umm al-Qura tables. The Hijri year is lunar (354–355 days), advancing about 11 days against the Gregorian each year.
20 July 2026 corresponds to Monday, 6 Safar 1448 AH. The same Gregorian date lands about eleven days earlier in Hijri every successive year — which is why Ramadan travels through the seasons.
Some use approximate astronomical calculations or other Islamic calendars (like the tabular civil one). This converter uses Umm al-Qura exclusively — Saudi Arabia's official reference for documents and transactions.
Umm al-Qura is pre-computed, while the starts of Ramadan, Shawwal, and Dhu al-Hijjah are officially declared by sighting and can occasionally differ by a day. Follow official announcements for worship; the calendar governs documents.
Umm al-Qura tables accurately cover roughly 1300–1500 AH (about 1882–2077 CE). Outside that range, conversions become estimates.
These sources are used to verify terminology, formulas, and information related to this calculator.