The short version
Pick the calendar you are starting with, enter a valid date, and select Convert. The result shows the matching date in both calendar systems, with a readable month name and an option to convert back.
01 / Convert a date
Start with the calendar you know
On the main converter, choose Gregorian or Hijri under “Convert From.” Gregorian dates use the familiar solar calendar. Hijri dates follow the Islamic lunar calendar, with months containing 29 or 30 days.
Enter the day, month, and year in the three fields, then select Convert. You can also press Enter from a date field to submit the form.
02 / Check the input
Useful feedback before a result
The converter checks that all fields contain whole numbers, that the month and year are positive, and that the day can exist in the selected calendar. Gregorian leap years and month lengths are checked automatically; Hijri days must be between 1 and 30.
03 / Read the result
See both dates at a glance
A completed conversion displays the numeric date and a readable format for both Gregorian and Hijri. This makes it easier to copy a date into a planner, compare a historical reference, or check an upcoming occasion.
Select “Swap & Convert Back” to use the returned date as your new input. This is useful when you want to verify the direction of a conversion without typing the date again.
04 / Use today as a starting point
Check today’s calendar pair
Select Today to reset the form to the current Gregorian date. Convert it to see the corresponding Hijri date immediately. Switching the source calendar also refreshes the fields with the current date in that calendar.
Beyond conversion
Keep planning with the right tool
The Tools area extends the same simple workflow to everyday calendar questions. Use the date difference calculator to measure elapsed time, browse Islamic events for important dates, or explore the full tool collection.