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Hijri Calendar Converter

Convert a Gregorian date to a tabular Hijri date or convert a Hijri date back to Gregorian, right in your browser.

Gregorian date

Method: tabular Islamic civil calendar, using a repeating 30-year arithmetic cycle. It is not Umm al-Qura and does not use local moon sightings. A result can differ by a day from the calendar used by a mosque or local authority. Gregorian input range: 622–9999 CE; Hijri year range: 1–10000 AH. This is a date conversion, not religious guidance.

How do I convert a Gregorian date to Hijri?

Choose a direction, enter a valid date and select Convert. The result uses the tabular Islamic civil calendar arithmetic method shown below.

Frequently asked questions

How do I convert a Gregorian date to Hijri?

Choose a direction, enter a valid date and select Convert. The result uses the tabular Islamic civil calendar arithmetic method shown below.

Are my dates uploaded?

No. Date conversion runs in this browser. Your dates are not uploaded or saved by this tool.

Why can a Hijri date differ from another calendar?

This tool uses a fixed tabular arithmetic calendar. Local religious calendars may use moon sightings or a different published calendar, so their date can differ by one day or more.

Is this the Umm al-Qura calendar?

No. This is the tabular Islamic civil calendar with a repeating 30-year arithmetic cycle; it does not reproduce Umm al-Qura dates.

Does this tool decide when a religious month begins?

No. It only converts dates using the stated arithmetic method and is not religious guidance.