Tools

Charts calculators

natal · sidereal · draconic · returns · synastry · composite

Charts answer what a configuration looks like: your birth chart, a return, a synastry overlay, any moment frozen and read as a wheel. Pick a technique and the frame it runs in, and you get the wheel plus the tables behind it. Natal, draconic, and sidereal readings all trace back to the same ephemeris data, so switching between them never means switching tools.

The whole wheel

A full chart, wheel and table

Free 90° Dial / Uranian Midpoint Tree Calculator

See your midpoint trees on the 90 degree dial, the core technique behind Uranian and Hamburg School astrology.

Free Antiscia Calculator

See your chart's hidden antiscia points, the mirrored positions ancient astrologers read as shadow influences.

Free Azimuth / Horizon Chart Calculator

See your birth chart plotted by compass direction and height above the horizon, not just zodiac position.

Free Birth Chart Calculator

Enter your birth date, time, and place to generate your full natal chart in seconds.

Campanus House System Chart Calculator

Get your chart cast in the Campanus house system, one of the oldest quadrant methods, predating Placidus.

Free Cosmobiology Midpoint Chart

Get your full midpoint tree on the 90 degree dial, using Reinhold Ebertin's Cosmobiology method.

Free Declination Chart Calculator (Right Ascension & Declination)

See your chart in right ascension and declination, revealing parallel aspects a standard chart can't show.

Equal House System Chart Calculator

Get your chart cast in the Equal House system, twelve even houses starting from your Ascendant.

Free Harmonic Chart Calculator (5th Harmonic)

Get your 5th harmonic chart, the classic starting point for reading talent and creative skill.

Koch House System Chart Calculator

Get your chart cast in the Koch house system, using birthplace time arcs instead of the ecliptic.

Krishnamurti Paddhati (KP) Chart Calculator

Get your chart in the KP sidereal frame, built for the precise event timing Krishnamurti Paddhati is known for.

Free Lunar Return Chart Calculator

Get your Lunar Return chart, a short-range forecast for the emotional tone of the coming month.

Free Astrology Midpoint Calculator

Find every midpoint in your chart and see which ones sit close enough to another planet or angle to matter.

Navamsa (D9) Chart Calculator

Get your D9 Navamsa chart, the Vedic technique for marriage, dharma, and every planet's inner strength.

Porphyry House System Chart Calculator

Get your chart cast in the Porphyry house system, the simplest quadrant method, with no time-arc math required.

B.V. Raman Ayanamsa Chart Calculator

Get your chart in the B.V. Raman ayanamsa, an alternative sidereal reference point used in Vedic astrology.

Regiomontanus House System Chart Calculator

Get your chart cast in the Regiomontanus system, the Western standard for centuries before Placidus took over.

Free Secondary Progressions Calculator

Get your Secondary Progressions, a symbolic day-for-a-year technique for tracking gradual internal change.

Free Sect & Essential Dignities Calculator

See your chart's sect and essential dignity scores, the classical five-fold system for planetary strength.

Free Sidereal Birth Chart Calculator

Get your birth chart in the sidereal zodiac, the frame Vedic astrology uses to track the actual stars.

Free Solar Arc Directions Calculator

Get your Solar Arc directions, your whole chart advanced by roughly one degree for every year you've lived.

Free Solar Return Chart Calculator

Get your Solar Return chart, cast for the moment the Sun returns to its natal degree, a forecast for your year ahead.

Free Transit Chart Calculator

See today's planetary positions cast against your natal chart as a bi-wheel.

Free Vedic Kundli Chart Generator

Get your Vedic Kundli, a birth chart cast in the sidereal zodiac using the Lahiri ayanamsa.

Whole Sign House System Chart Calculator

Get your chart cast in Whole Sign houses, the oldest known house system and the default in Hellenistic astrology.

One answer, one screen

A single value, no wheel

Free Big Three Calculator

Get your Sun, Moon, and Ascendant in one quick answer, the three placements astrologers check first.

Free Dominant Element Calculator

Find out which element, fire, earth, air, or water, dominates your chart and shapes your temperament.

Free Moon Sign Calculator

Find your Moon sign and see how you process feelings and what makes you feel safe.

Free Rising Sign Calculator

Find your rising sign, the zodiac sign climbing the eastern horizon at the exact moment you were born.

Two charts together

Two subjects combined into one reading

Free Coalescent Chart Calculator

Get your relationship's Coalescent chart, a harmonic-sum alternative to the more familiar composite chart.

Free Composite Chart Calculator

Get the composite chart for you and another person, a single symbolic chart for what exists between you.

Free Davison Chart Calculator

Get your Davison chart, a real astronomical chart cast for the exact midpoint in time and space between two births.

Synastry Chart Calculator

Enter both birth details to see your synastry, composite, and Davison charts for any two people.

Tables and grids

Two techniques compared side by side

Free House System Comparison Calculator

Compare your chart in Placidus, Whole Sign, Koch, and Equal houses side by side to see what actually shifts.

Free Tropical vs Sidereal Chart Calculator

Compare your chart in the tropical and sidereal zodiacs side by side to see which placements actually shift.

Other categories

Calendars & timing

retrograde · moon phase · eclipse · ingress · profections · ephemeris

Search & reverse

aspect search · rectification · reverse ascendant · electional

Maps

astrocartography · local space · relocation