Free · No sign-up · 9 languages
Date converter for every calendar you need
Convert dates between Persian (Jalali), Gregorian, Hijri, Hebrew and Chinese — with official holidays, side-by-side calendars and leave planning for immigrants, expats and travelers.
- 5 calendar systems
- 9 languages
- 14 countries
All the tools, one place
Plan travel, relocation and important dates with tools built for life between calendars.
Convert any date: Persian ↔ Gregorian, Hijri date converter, Hebrew and Chinese — with weekday and holidays.
Open tool Compare CountriesTwo countries' calendars and holidays side by side — plan trips and relocation without surprises.
Open tool CalendarMonth-by-month grids in every calendar, with holidays, weekends and downloads (.ics / PDF).
Open tool Public HolidaysA full year of official holidays for 14 countries, each shown in its own calendar.
Open tool Leave PlannerFind the best time to take leave — bridge weekends and public holidays into longer breaks.
Open tool Days BetweenCount the days, months and years between two dates — even across different calendars.
Open tool Age CalculatorYour exact age in years, months and days — in the Gregorian and Persian calendars at once.
Open toolFive calendar systems
Jump straight to the current month of the Persian, Gregorian, Hijri, Hebrew or Chinese calendar.
World Clock
A free date converter built for life between calendars
Multi-Calendar is a free date converter and multi-calendar toolkit: convert Persian (Jalali) and Hijri dates to Gregorian, compare calendars side by side, and track holidays at home and abroad — for immigrants, expats and travelers planning around Nowruz, Ramadan or Rosh Hashanah.
Every date is computed with exact astronomical calendar algorithms — the same arithmetic used by ICU — and holiday data covers 14 countries with official public holidays, observances and religious occasions. Everything works in 9 languages, with full right-to-left support.