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Free Birth Chart Calculator
Enter your birth details to instantly reveal your Sun, Moon & Rising signs — then save your birth chart with a free account.
Quick answer
A birth chart, or natal chart, is a map of where the Sun, Moon and planets were at the exact time and place you were born. Enter your birth date, time and place to see your Sun, Moon and Rising signs instantly. Aurae calculates charts in the tropical zodiac with Whole Sign houses, covering the Sun through Pluto plus Chiron and the lunar nodes.
Discover your Big Three
Your Sun, Moon, and Rising signs — the three pillars of who you are. Calculated in real time from your exact birth moment.
What is a natal chart?
A birth chart is a map of the sky at the exact moment you were born — a snapshot that describes not what happened in the sky, but what those positions say about you. Your Sun sign (the one you probably know) is just one piece of a much larger picture.
A full natal chart captures the position of every planet at the moment of your birth: your Sun sign, Moon sign, Rising (Ascendant), plus Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Each placement describes a different dimension of who you are — how you think, how you love, what drives you, and where your greatest challenges and gifts live.
What your chart reveals
Sun Sign
Your core identity and conscious self
Moon Sign
Your emotional world, instincts, and inner life
Rising Sign
How others see you, your approach to new situations
Venus
How you love, what you're attracted to
Mars
How you act, compete, and pursue what you want
Mercury
How you think, communicate, and process information
What you'll need
Birth date
Day, month, and year
Birth time
As accurate as possible — check your birth certificate
Birth location
City or town where you were born
Note: Don't know your exact birth time? Use your best estimate: your Sun is unaffected and your Moon usually is too, and you can correct the time from your profile later. The Rising sign and house placements depend on it.
This isn't your typical horoscope
Generic horoscope
- —Sun sign only
- —Same reading for millions of people
- —Broad, generalised predictions
- —No awareness of your actual chart
Aurae
- ✦Full natal chart — every planet
- ✦Personalised AI interpretation
- ✦Daily horoscopes based on your chart
- ✦Love compatibility via synastry
Common questions
How accurate is a birth chart reading?
The accuracy depends on how precise your birth information is. An exact birth time gives you the most accurate Rising sign and house placements. Even with an approximate time, your Sun, Moon, and planetary signs will be correct.
What's the difference between a sun sign and a natal chart?
Your sun sign is just one of dozens of factors in a complete birth chart. While your sun sign describes your core identity, your Moon sign describes your emotional world, your Rising sign shapes how others perceive you, and the positions of Venus, Mars, Mercury, and the outer planets each add unique layers to who you are.
Which zodiac and house system does Aurae use?
The tropical zodiac — the Western standard, measured from the equinox — with Whole Sign houses, where the sign on your Ascendant is your 1st house. Planet positions come from the astronomy-engine ephemeris. Aurae does not offer Placidus houses. For Vedic astrology, Aurae also has a sidereal chart (Lahiri ayanamsa): the Vedic calculators are free with no account, and a free account saves your Vedic chart.
Do I need my exact birth time?
An exact birth time gives you the most complete chart, including your Rising sign and house placements. If you don't know it, you can still get a meaningful reading from your birth date and location — you just won't have the full picture.
Is a birth chart reading the same as a horoscope?
A horoscope is a periodic reading (daily, weekly, monthly) drawn from your birth chart. The chart is your permanent astrological blueprint; a horoscope is an interpretation of how current planetary movements interact with that blueprint.
Is Aurae's birth chart reading free?
Your Sun, Moon and Rising signs are free here, with no account. A free Aurae account saves your chart and shows your birth-chart wheel and Big Three, plus one placement from your chart each day. A free account also gets the full daily horoscope, a daily tarot pull and the Moon's path through your houses. Pro lists every planet’s sign, degree and house — Chiron and the lunar nodes included — with your house cusps and solar return; personalized AI chart readings are part of Premium. Transits and forecasts are on Pro.
Famous birth charts
Curious what the stars say about the icons? Explore the natal charts of well-known figures.