Hijri (Islamic) Date Converter

Quick answer

This calculator converts Hijri (Islamic) dates to and from all 13 other calendars on one page.

Enter a date, pick the systems, and the exact equivalent appears instantly.

Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.

Inputs

From calendar

To calendar

Year

Month

Day

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How it works

date → JDN (source epoch) → date (target epoch)

This hub converts Hijri (Islamic) dates to and from every other calendar system on one page. Enter the day, month, and year, pick the two systems, and the exact equivalent appears instantly — the conversion goes through the Julian Day Number, so each system's own epoch and leap rules are applied.

1
Step 1
Enter the date as shown in the format.
2
Step 2
Hit "Calculate" and the result is computed automatically.
3
Step 3
You can re-run the calculation with different values anytime.

Use Cases

Any Hijri (Islamic) pair, one page

Instead of a dedicated page per system pair, this hub converts a Hijri (Islamic) date to any other system instantly — pick the two calendars and enter the date once.

Cross-calendar planning

The same date lands differently every year across calendars; converting the full date — day, month, and year — keeps occasions and deadlines accurate in both systems.

Tips

1
Confirm the calendar system before converting.
2
Time-zone differences can shift a date by a day.
3
Use the YYYY-MM-DD format for reliability.

Common Mistakes

Entering a Gregorian date while the source system is set to another calendar — check the from-system before converting.
Adding or subtracting a fixed number of years to move between calendars instead of converting the full date.

FAQs

Which calendars can I convert between here (Hijri (Islamic) Date Converter)?

All supported systems in both dropdowns — Gregorian, Hijri, Hebrew, Persian, Coptic, Ethiopian and more, in any direction.

How is the conversion computed (Hijri (Islamic) Date Converter)?

Through the Julian Day Number: the source date maps to a day number using its own epoch, then that number maps to the target system — no fixed year offset.

Why do some results say approximation (Hijri (Islamic) Date Converter)?

A few systems don't have exact arithmetic rules implemented; those conversions are labelled as best-effort approximations rather than exact.

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