How does this birth chart calculator work?

Enter your birth date, birth time and birth place (city). The calculator converts your local birth time to universal time using that place's time zone, then computes the real positions of the Sun, Moon and planets plus your Rising sign and Midheaven, and draws your natal chart wheel. The closer your birth time is to the minute, the more precise your Rising and house cusps. If you do not know your exact time, you can still get an approximate chart, but the Rising, houses and sometimes the Moon will be less reliable.

What is the Big 3 (Sun, Moon, Rising)?

Sun is your core identity and life purpose. Moon is your emotional inner world and instinctive reactions. Rising (Ascendant) is the mask you wear when meeting the world and the way others first read you. Together they form the foundation of any natal chart reading. Our free tier includes all three.

What are the four elemental groupings?

Fire (Aries, Leo, Sagittarius): passionate, energetic, direct, action-driven. Earth (Taurus, Virgo, Capricorn): practical, reliable, grounded, goal-focused. Air (Gemini, Libra, Aquarius): intellectual, communicative, social, idea-driven. Water (Cancer, Scorpio, Pisces): intuitive, empathetic, deep, emotionally perceptive. Your chart shows how your ten planetary placements distribute across these four elements.

How is this different from a personality quiz?

It is not a quiz. There are no personality questions — we compute the actual planetary positions at your natal moment using real astronomical data. That precision is what makes the interpretation land: you are reading yourself, not a generic profile.

Is astrology scientifically validated?

Astrology is a cultural and metaphysical tradition without empirical support in scientific psychology. This reading is offered for self-reflection, symbolic exploration, and cultural interest. For evidence-based personality insights, explore Big Five, MBTI, or RIASEC on JobCannon.

Spiritual

Birth Chart Calculator: Your Real Natal Chart with Sun, Moon & Rising

Q: What is included in the free vs premium reading?

Free gives you the full chart wheel geometry plus your Big 3 readings — Sun, Moon, and Rising. Premium unlocks per-planet readings for all ten planets in their sign and house, plus interpretations of every significant aspect (conjunction, opposition, trine, square, sextile) between them.

Free birth chart calculator. Enter birth date, time and place for your real natal chart: Sun, Moon, Rising and the full wheel free, planet readings premium.

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The basics

What is the Natal Chart?

A natal chart (birth chart) maps the exact positions of the Sun, Moon, and planets at the moment of your birth, creating a unique astronomical blueprint that has been used for over 2,000 years to reflect personality, life themes, and potential. The twelve zodiac signs divide into four elemental groups: Fire signs (Aries, Leo, Sagittarius), Earth signs (Taurus, Virgo, Capricorn), Air signs (Gemini, Libra, Aquarius), and Water signs (Cancer, Scorpio, Pisces), each carrying distinct archetypal energies.

Keep reading

Your chart's foundation is the Big 3: your Sun (core identity and life purpose), your Moon (emotional inner world), and your Rising sign or Ascendant (the mask you wear when meeting the world). Beyond those, the balance of all ten planetary placements across the four elements and three modalities (Cardinal, Fixed, Mutable) reveals how you actually experience and interact with the world — the layer of self-recognition that a generic personality profile can never reach.

JobCannon computes your chart using real astronomical data. Enter your birth date, time, and place, and we calculate the actual planetary geometry of your natal moment — the same way a professional astrologer would. Free readings give you the full chart wheel plus Big 3 interpretations. Premium unlocks per-planet readings for all ten planets in their sign and house, plus interpretations of every significant aspect (conjunction, opposition, trine, square, sextile) between them.

Closely related

What you get

What You'll Discover

Your Big 3: real Sun, Moon, and Rising sign placements

Element and modality balance across your ten planetary placements

The full chart wheel with houses, aspects, and planetary geometry

Premium: per-planet readings and full aspect interpretations

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