Planets in Houses Calculator: Where Each Planet Works in Your Life

Why the Birth Time Decides Your Houses

The signs are fixed in the sky; the houses are fixed to the place you were born. The first house begins at your rising sign, the degree coming up over the eastern horizon at your birth, and the other eleven follow round the wheel. As the Earth turns, that degree moves about one degree every four minutes, and the whole set of houses moves with it.

So the date gives you your planets' signs, but only the time gives you their houses. A planet a degree or two from a cusp can sit in one house or the next depending on a few minutes. If your time is a rough guess, read placements near a cusp with care.

Angular, Succedent and Cadent Houses

The four angular houses — the first, fourth, seventh and tenth — start at the four angles of the chart: the Ascendant, the IC, the Descendant and the Midheaven. Planets here act strongly and in plain view; they are the ones people notice in you first.

The succedent houses — the second, fifth, eighth and eleventh — follow them and give what the angles start something to hold on to: money, pleasure, shared resources, friends. The cadent houses — the third, sixth, ninth and twelfth — are houses of learning and adjusting. Planets there work more quietly, through thought, skill and change.

Empty Houses Are Not Weak Houses

With ten planets and twelve houses, every chart has empty houses — most have four or five. An empty seventh house does not mean no marriage, and an empty tenth does not mean no career. It means that area of life is not where your planets are pulling hardest.

An empty house is read through the sign on its cusp and the planet that rules that sign: wherever that ruler sits, the affairs of the empty house are drawn there. The chart ruler works the same way for the first house. Transits also bring empty houses to life whenever a slow planet passes through them.

A Worked Example: My Own Planets in Houses

Here are the houses in my own birth chart, read the way the calculator reads yours. Every placement is the real one.

1. The Busiest HouseFive planets sit in my second house, all in Libra: the Sun, Mercury, Venus, Saturn and Pluto. That is a strong stellium in the house of money, values and what one builds, and it makes the second house the main theme of the chart.
2. Reading the StelliumThe Sun and Mercury put identity and thinking into that house; Venus, in its own sign, brings ease and taste; Saturn, exalted in Libra, brings patience and slow building; Pluto asks for deep change along the way. This is not easy money — it is worth built over time.
3. The Moon in the First HouseMy Moon is at 24°51'37" Virgo, about 21 degrees past the Ascendant, in the first house. Feelings show on the surface here, and the Moon colours the whole personality.
4. The Third and Fourth HousesJupiter and Uranus share the third house of learning and communication; Mars and Neptune share the fourth, the house of home and roots.
5. Six Empty HousesThe sixth, seventh, eighth, tenth, eleventh and twelfth houses hold no planets. The seventh, for example, has Pisces on its cusp, so I read it through Jupiter, its traditional ruler, in the third house, and Neptune, its modern ruler, in the fourth.
6. The Vedic ViewIn my kundli the lagna is Leo, and whole-sign houses shift two placements: the Moon moves from the first house into the second, and Saturn from the second into the third. The emphasis on the second house stays.

When both systems agree on the busiest house, I treat it as the backbone of the reading. Here the Western stellium and the Vedic second house point the same way, so everything else in the chart is read in its light.