🌌 Free Birth Chart Calculator
Generate a Western Tropical birth chart with your Sun, Moon, Rising Sign, planets, houses and major aspects using your birth date, exact time and birthplace.
Calculate My Birth Chart
Can't find your birthplace? Enter coordinates manually
Your chart can be calculated locally in your browser after location lookup. We do not require an account or email.
Your Birth Chart
Birth Chart Wheel
The wheel is a visual aid. The tables below provide the accessible text version of the same chart data.
Planetary Positions
House Cusps
Major Aspects
Your Rising Sign
Your Sun Sign
Your Moon Sign
Mercury Sign
Venus Sign
Mars Sign
Jupiter & Saturn
Outer Planets
Personalized Birth Chart Summary
❤️ Love & Relationship Reading
💼 Career & Work Reading
💰 Money & Finance Themes
🚀 Business & Entrepreneurship Reading
Share My Birth Chart
Astrology is a traditional belief and interpretive practice. This calculator is provided for informational and personal-reflection purposes and is not scientifically validated. It should not be considered medical, legal, financial or professional advice.
What Is a Birth Chart Calculator?
A birth chart calculator uses your birth date, exact birth time and birthplace to calculate the positions of the Sun, Moon and planets at the time of birth. A natal chart is commonly used in astrology to interpret zodiac signs, houses, angles and aspects. This calculator uses Western Tropical Astrology with the Placidus house system.
How Does a Birth Chart Calculator Work?
- Your birthplace is converted into latitude, longitude and an IANA time zone.
- The local birth time is converted to an absolute instant using that location's time-zone rules.
- An astronomical ephemeris calculates planetary positions for that instant.
- The chart calculates the Ascendant, Midheaven, house cusps and major aspects.
- The page presents both the raw chart data and traditional astrological interpretations.
About Birth Chart Astrology
Astrology is a traditional interpretive practice that assigns symbolic meanings to celestial positions. Western Tropical astrology measures the zodiac from the seasonal equinox points. Different astrological schools use different zodiacs and house systems, so this page states its settings instead of suggesting there is one universal calculation method.
Quick Answers About Birth Charts
What is a birth chart?
A birth chart is a map of the sky calculated for a specific birth date, time and location and interpreted within an astrological system.
What is a natal chart?
A natal chart is another common name for a birth chart used in astrology.
How does a birth chart calculator work?
It converts your birth information into an astronomical time and location, calculates planetary positions, then derives houses, angles and aspects according to the selected astrology system.
What information do I need for a birth chart?
You normally need your birth date, exact birth time and birthplace. The exact time is especially important for the Ascendant and houses.
Why is birth time important?
Birth time affects the Ascendant and house cusps, which can change relatively quickly compared with slower-moving planetary positions.
What if I do not know my birth time?
You can still calculate planetary signs from the date, but an exact Ascendant and house chart cannot be treated as reliable without a reliable birth time.
What is a Rising Sign?
The Rising Sign, or Ascendant, is the zodiac sign rising on the eastern horizon at the birth moment and location.
What is a Sun Sign?
The Sun Sign is the zodiac sign containing the Sun at the birth moment in the chosen zodiac system.
What is a Moon Sign?
The Moon Sign is the zodiac sign containing the Moon at the birth moment and is traditionally associated with emotions, habits and comfort.
What does Mercury represent?
In traditional astrology, Mercury is associated with thinking, learning and communication.
What does Venus represent?
In traditional astrology, Venus is associated with affection, attraction, values, relationships and aesthetics.
What does Mars represent?
In traditional astrology, Mars is associated with action, motivation, desire and conflict style.
What are the 12 astrology houses?
The 12 houses divide the chart into life areas such as identity, money, communication, home, romance, work, relationships, shared resources, learning, career, community and retreat.
What are astrology aspects?
Aspects are angular relationships between chart points, such as conjunctions, sextiles, squares, trines and oppositions.
What is a conjunction?
A conjunction occurs when two chart points are close together by zodiac longitude, within the chosen orb.
What is a retrograde planet?
A retrograde planet appears to move backward against the zodiac from Earth's viewpoint; astrologers interpret this symbolically.
Can a birth chart predict the future?
A birth chart should not be treated as a guaranteed prediction of future events. It is better used as a traditional symbolic framework for reflection.
Is astrology scientifically proven?
Astrology's predictive claims are not scientifically established, so this calculator presents interpretations as traditional rather than scientific facts.
How accurate is a birth chart calculator?
The astronomical calculation can be deterministic for the selected system and data, while the astrological interpretation is symbolic and depends on the chosen tradition.
Is a natal chart the same as a birth chart?
Yes. “Natal chart” is a common term for a chart calculated for someone's birth information.
