Birth Chart Calculator
Determine your Sun, Moon, and Rising signs from your birth date, time, and location.
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How to use this calculator
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Enter your birth date, birth hour (24-hour format), and birth minute.
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Enter the latitude and longitude of your birth location for more accurate rising sign calculation.
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Review your Sun sign (your core identity), Moon sign (emotional nature), and Rising sign (outward personality).
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Note: for a full precision natal chart, use dedicated astrology software with exact birth coordinates.
Frequently asked questions
What is the difference between Sun, Moon, and Rising signs?
Your Sun sign represents your core identity and conscious ego — what most people mean when they say "my sign." Your Moon sign governs your emotional world, instincts, and subconscious needs. Your Rising sign (ascendant) is the sign on the eastern horizon at the moment of your birth and shapes how others perceive you and your outward demeanor.
Why is the Moon sign approximate?
The Moon moves through all 12 signs in about 27 days — roughly 2.5 days per sign. Without knowing the precise birth time and using accurate astronomical tables, the Moon sign can be off by one sign near cusps. This calculator uses a simplified orbital model that is accurate to within 1–2 signs for most dates.
Why do I need my birth time for the Rising sign?
The Rising sign changes every 2 hours as the Earth rotates. Someone born at 6am and another born at 8am on the same day may have completely different Rising signs. Without a precise birth time, the Rising sign calculation is approximate. Hospital birth records are the most reliable source.
Birth Chart Calculator — Sun, Moon & Rising Signs
Understanding your Big Three
In Western astrology, the Sun, Moon, and Rising signs are called the "Big Three" because together they paint the most complete picture of a person's astrological profile. The Sun sign describes who you are at your core; the Moon sign reveals your inner emotional life; the Rising sign shows how you move through the world and the first impression you make. Many people find that their Moon or Rising sign resonates with them more strongly than their Sun sign.
Elements and modalities in your chart
The four elements — Fire (Aries, Leo, Sagittarius), Earth (Taurus, Virgo, Capricorn), Air (Gemini, Libra, Aquarius), and Water (Cancer, Scorpio, Pisces) — describe the fundamental energy type of each sign. The three modalities — Cardinal (initiates), Fixed (sustains), and Mutable (adapts) — describe how each sign expresses that energy. A complete birth chart examines the balance of all elements and modalities across all planetary placements.
Learn more from an authoritative source:
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →