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Free Birth Chart: what it is, how it's calculated, and what it can actually tell you

2026-09-22

Your sun sign is the part of your birth chart most people already know. But it's just one of more than ten data points that map the exact sky at the moment you were born — where every planet sat, in which sign, and in which astrological house.

What do I need to calculate my birth chart?

Three pieces of information, all required:

If you don't have your exact birth time, check your birth certificate — it's worth the effort, since it changes several core interpretations.

Sun, Moon, and Rising: the three points everyone looks up first

When someone first gets curious about their birth chart, they usually look up their Sun (core identity), their Moon (emotional world), and their Rising sign / Ascendant (how you come across to others). These are the best-known because they don't require complex calculations to start being useful.

But the chart holds much more — Mercury (how you think and communicate), Venus (how you love), Mars (how you act), and lesser-known points like Chiron, which points to patterns of pain that rarely get named out loud but, once recognized, carry real potential for conscious work.

How is this different from astrology apps that just give you a sun-sign horoscope?

A generic horoscope gives everyone born under the same sign the same reading, regardless of the year, exact day, or time they were born. A full chart calculation is specific to your unique combination of birth data — no two people, even born on the same day, necessarily share the same full chart.

Beyond Western astrology

Western astrology is one system among many. On ALMAI your birth chart can be cross-referenced with Chinese astrology (Ba Zi), numerology, Human Design, and 181 other systems — so the picture of who you are doesn't depend on a single symbolic language.

Calculate your free birth chart, no card required →

✧  Get your free chart

ALMAI ofrece interpretaciones de carácter exploratorio y reflexivo, basadas en tradiciones ancestrales y en tus propios datos de nacimiento. No constituyen diagnóstico médico, psicológico, legal ni financiero.