Free Birth Chart Calculator

A birth chart (also called a natal chart) is a map of where every planet was in the sky at the exact moment you were born. It uses your birth date, birth time, and birth location to calculate planetary positions across 12 zodiac signs and 12 houses. Your birth chart is unique to you — it describes your personality, strengths, challenges, and life themes.

You need three things: your birth date (day, month, year), your birth time (as precise as possible — check your birth certificate), and your birth city. The birth time is especially important because it determines your Rising sign and the positions of all 12 houses.

Your Sun sign is your core identity — the sign the Sun was in on your birthday. Your Moon sign is your emotional world and inner self — the sign the Moon was in at your birth moment. Your Rising sign (Ascendant) is your outward personality and first impressions — the zodiac sign rising on the eastern horizon at your exact birth time and location. Together, the "Big Three" form the foundation of your chart.

The 12 houses divide your birth chart into areas of life: identity, money, communication, home, creativity, health, partnerships, transformation, philosophy, career, community, and the unconscious. Each house is ruled by a zodiac sign (the sign on its cusp), and any planets inside a house intensify that area of your life.

Aspects are the angular relationships between planets in your chart. When two planets are a specific number of degrees apart, they form an aspect — a conversation between their energies. Major aspects include the conjunction (0°), opposition (180°), trine (120°), square (90°), and sextile (60°). Trines and sextiles are harmonious; squares and oppositions create tension that drives growth.

Yes. The full natal birth chart — all planet positions, house placements, Rising sign, Midheaven, and aspects — is completely free with no credit card required. Free accounts also get full interpretations for every planet and house, the chart wheel, your numerology report, Destiny Matrix, astrocartography map and Shadow Work mode. The Live Transits plan adds real-time transits to your chart.

Discover Yourself calculates the Sun, Moon and planets to Neptune with the full VSOP87 planetary theory and the ELP-MPP02 lunar theory, and Pluto with the astronomy-engine library. Positions agree with the Swiss Ephemeris, the engine behind most professional astrology software, to within a few arcseconds. The house system used is Placidus, the most widely used system in Western astrology.

Sites differ in two ways. Some use the mean node and some the true node; they can be up to 1.8° apart, which changes the sign for about 3 in 100 people. We use the mean node. And some use one Part of Fortune formula for every chart, while we switch it for day and night births. Your chart says which it used beside each point.

Shadow Work mode (available on the birth chart page) transforms your chart into a Jungian shadow reading. Instead of showing your natural gifts, it reveals the unconscious wounds, repressed patterns, and karmic challenges in each house — based on the zodiac sign on your cusp. It's based on Carl Jung's concept of the shadow self and is unique to Discover Yourself.