Gregorian to Iranian (Persian) Calendar Converter

Enter any Gregorian date to convert it into the Iranian (Persian / Solar Hijri) calendar. Shows the Persian month name (Farvardin, Tir and more), leap-year status and day of the week, based on the spring-equinox new year (Nowruz).

Input

Gregorian date

YYYY/MM/DD

Pick the Gregorian date you want to convert and it will be turned into the Iranian (Persian / Solar Hijri) calendar date. The Iranian new year (Nowruz) falls on the spring equinox.

Result

Enter a Gregorian date.

How it works

Choose a Gregorian (Western) date and the tool shows the matching Iranian (Persian / Solar Hijri) calendar date.
The Iranian calendar is a solar calendar whose new year, Nowruz, is aligned with the spring equinox, so the Persian new year (1 Farvardin) falls around March 20 on the Gregorian calendar.
The months run Farvardin, Ordibehesht, Khordad and so on: the first six months have 31 days each, the next five have 30 days each, and the final month, Esfand, normally has 29 days (30 in a leap year).
Leap years are detected and shown. In a leap year Esfand has 30 days and the year is 366 days long.
Conversion is computed through the Julian Day Number (JDN), so month shifts and leap-year boundaries are handled precisely.
The difference between the Gregorian year and the current Iranian year is roughly 621 to 622 years (for example, 2026 CE is around 1404 to 1405 in the Iranian calendar).

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