Birth Chart Calculation and Interpretation
A birth chart, in astrology also called radix or natal chart, is a
snapshot of the sky at the moment of your birth: seen from Earth and
calculated precisely for your birth time and birth place. That is far
more than the one star sign from the newspaper column. Every planet
occupies an exact position in the zodiac. Only their interplay forms the
picture of a personality with its traits, abilities and recurring life
themes.
Sun, Moon, Ascendant: three points that carry special weight
Three points contribute particularly much to the chart:
- The Sun. Your sun sign, what most people know as
“their sign”: the core around which much of you is organised.
- The Moon. Your moon sign describes emotional life:
how you experience closeness, what nourishes you, what you react to
instinctively.
- The Ascendant. The zodiac sign rising on the
eastern horizon at the moment of birth: your presence, the way you meet
the world. Opposite it lies the Descendant, which astrological
tradition links to encounter and relationships.
How to use the calculator
Enter birth date, time and place above to calculate your birth chart
free of charge. The place search finds cities worldwide and sets time
zone and coordinates automatically.
Birth time rewards precision. A few minutes shift the ascendant and
the houses, so a look at the birth certificate beats a vague memory
that only narrows things down to a two-hour window. If the time is
unknown, calculate with 12:00: Sun, Moon and the planets in their signs
remain meaningful; only ascendant and houses become uncertain.
After calculating, the radix shows every planet in sign and house,
along with exact degree positions. Hover over signs, houses, axes or
planets: short notes explain what you are looking at.
Aspects: interpreting the connections in the chart
Aspects are angular relationships between planets: conjunction,
sextile, trine, square and opposition. They show which forces in you
cooperate and which stand in productive tension.
This is where interpretation begins. One click on an aspect
generates an AI-supported short reading in a psychological-humanistic
spirit: practical language, no predictions, no drama. The tighter the
orb, meaning the exactness of the angle, the more defining the
pattern. That, too, flows into the reading.
Houses: where things show up
Signs describe how a force works. The twelve houses show where in
life it appears most clearly: from the first house (self and presence)
to the seventh (partnership) and the tenth (vocation and public role).
The “Theme flow” tab turns this into a picture for beginners. It traces
how the energy of each house cusp flows onward through its ruler into
another house.
Transit weather: today's sky
Transits connect two layers of time: the current positions of the
planets and your birth chart. Transit weather shows which of your natal
themes are being activated right now. It describes a quality of time,
not fate. Here, too, one click delivers a fitting short reading — for
any date and a different location if you wish.
The limits of a free birth chart
Astrology is not a science, and no calculator replaces a
conversation. The interpretations are offers for reflection: mirrors,
not verdicts. Your input is used only for the calculation and is not
stored permanently.
Where these short readings of single aspects reach their limit, the
real work begins: the synthesis that considers your birth chart as a
whole — the horoscope in all its connections. Our
method explains how we approach that. And if
you want your chart read as one connected whole, the
Deep Analysis delivers the full,
human-reviewed interpretation.