Gregorian to Hijri Converter

Convert Gregorian dates to Islamic (Hijri) using the Umm al-Qura calendar.

About This Tool

Based on the Umm al-Qura calendar used in Saudi Arabia
Covers Gregorian years 1937 to 2077
One-click copy of converted dates
All calculations run in your browser — no internet needed

Note: This tool is not recommended for determining the start of Ramadan or religious holidays. Please refer to official religious authorities for such matters.