Persian (Jalali/Solar Hijri) Calendar Converter

The Persian calendar, also called the Solar Hijri or Jalali calendar, is a solar calendar used officially in Iran and Afghanistan. It begins each year on the spring equinox (Nowruz, around March 20–21 in the Gregorian calendar). The first six months have 31 days, the next five have 30 days, and the last month (Esfand) has 29 days in a common year or 30 in a leap year.

Select 'Gregorian → Persian' as your conversion direction, then enter your date in the Gregorian Date field and hit Calculate. The tool returns the equivalent Persian year, month, and day, along with the day of week and season.

Select 'Persian → Gregorian' as the conversion direction, then fill in the Persian Year, Persian Month, and Persian Day fields. The calculator will return the corresponding Gregorian calendar date.

Yes. The algorithm used follows the standard Solar Hijri leap-year cycle. Persian leap years occur 8 times every 33 years and do not follow the same pattern as Gregorian leap years. The Leap Year output field will tell you whether the Persian year in question is a leap year.

The converter works for a wide range of dates, but very ancient historical dates (before the astronomical epoch of the Solar Hijri calendar) may not convert reliably. For modern dates — roughly from the 20th century onward — the results are accurate.

Nowruz (نوروز) is Persian New Year and marks the first day of Farvardin, the first month of the Persian calendar. It always falls on or very near the March equinox — typically March 20 or 21 in the Gregorian calendar, though the exact date shifts slightly each year due to astronomical observation.

The Solar Hijri (Persian/Jalali) calendar is a solar calendar aligned with the seasons, so its months always fall in the same season each year. The Lunar Hijri (Islamic) calendar is based on lunar months and is about 11 days shorter than the solar year, meaning Islamic calendar months drift through the seasons over time.

Persian month names such as Farvardin, Ordibehesht, and Khordad are the official names used in Iran and Afghanistan. Displaying both the number and the name helps users unfamiliar with the Persian calendar quickly identify the correct month without needing to memorise the names.