Ask what the number 3 means and a Chaldean numerologist will start with a planet: Jupiter. Every number from 1 to 9 carries the vibration of a planet, and this is not decoration — it is the reason numerology and astrology describe the same person. Your birth number reads with the flavour of its planet; so does your life path. Learn the nine correspondences and the two systems start speaking to each other.
The nine numbers and their planets
Tap any number to see the planet it answers to and what that brings.
Why 4 and 7 have shadow planets
Two of the nine answer to bodies that are not planets at all. 4 is ruled by Rahu and 7 by Ketu — the two lunar nodes of Vedic astrology, the points where the Moon's path crosses the Sun's. Rahu gives 4 its restless, unconventional, forward-reaching quality; Ketu gives 7 its inward, searching, slightly detached one. It is why those two numbers can feel harder to pin down than the rest.
How the bridge is used
Once you know a number's planet, your numbers and your chart stop being separate readings. If your life path is 8, Saturn's themes — discipline, time, the long climb — run through both your numbers and, wherever Saturn sits, your chart. When a planet is strong in the sky and also rules one of your core numbers, its message is doubled. This is the quiet logic underneath a full Cosmiclogy reading.
You can follow either thread further: the planets in your chart →, or your life path number →.
What to remember
Every Chaldean number answers to a planet: 1 Sun, 2 Moon, 3 Jupiter, 4 Rahu, 5 Mercury, 6 Venus, 7 Ketu, 8 Saturn, 9 Mars. The 4 and the 7 answer to the shadow planets, the lunar nodes. And the planet is the bridge — the point where your numbers and your chart turn out to be describing the same person.
Common questions
Which planet rules which number?
1 Sun, 2 Moon, 3 Jupiter, 4 Rahu, 5 Mercury, 6 Venus, 7 Ketu, 8 Saturn, 9 Mars.
Why do numbers have planets?
Chaldean numerology grew alongside astrology; each number carries a planet's vibration. It is why your numbers read with a planet's flavour, and the bridge between the two systems.
What are Rahu and Ketu?
The two lunar nodes of Vedic astrology, ruling 4 and 7 — Rahu restless and forward-reaching, Ketu inward and searching.
Does Cosmiclogy use this?
Yes — because it reads both your numbers and your chart, the shared planet joins the two into one picture.
Your numbers and your chart, together
A Cosmiclogy reading follows the planet behind your numbers straight into your birth chart — two views of one person, in plain language.
Get your reading →