Free Firdaria Calculator

Firdaria (from the Arabic/Persian firdar) are a medieval timing technique that assigns planetary rulership to consecutive periods spanning your entire life. The system was described by Abu Ma'shar (9th century), one of the most influential astrologers in the Islamic Golden Age, and was widely used by medieval European practitioners like Bonatti and Lilly.

Each major firdaria period is governed by one of the seven traditional planets or the lunar nodes, coloring a multi-year stretch of life with that planet's themes. Within each major period, sub-periods cycle through the remaining planets, adding a secondary influence that modifies the overarching tone.

The planetary sequence depends on whether you were born during the day (Sun above the horizon) or at night (Sun below). Day charts follow the Chaldean order starting from the Sun: Sun (10 years), Venus (8), Mercury (13), Moon (9), Saturn (11), Jupiter (12), Mars (7), North Node (3), South Node (2). Night charts start from the Moon instead.

Each major period is subdivided into sub-periods. For a 10-year Sun period, there are seven sub-periods (one for each traditional planet), each lasting about 1.4 years. The sub-ruler adds its own flavor. A Sun major / Saturn sub-period blends vitality with structure, while Sun / Venus brings warmth, creativity, and social connection.

The planet ruling your current firdaria era sets the background tone of your life during that stretch. The Sun period brings themes of identity, vitality, and public recognition. The Moon emphasizes emotions, family, and inner life. Saturn demands discipline, responsibility, and confrontation with limits. Jupiter expands horizons through opportunity, education, and faith.

Mars drives ambition, competition, and decisive action. Venus brings relationships, pleasure, and aesthetic refinement. Mercury activates learning, communication, and commerce. The North Node period often correlates with a push toward growth and new directions, while the South Node invites release and letting go.

Firdaria provide the background climate: the long-running planetary era that colors several years at a time. Layer this with annual profections to see which planet rules your specific year within that era. When the profection lord matches the firdaria ruler, that planet's themes become especially pronounced.

Add zodiacal releasing for the narrative layer: which life chapter you're in and whether it's a peak period. When all three techniques converge on the same planet or theme, the signal is hard to miss, and that area of life is demanding your full attention.