Astrology Calculators & Tools
Free, accurate astrology tools powered by real planetary calculations — no signup required. Find your Big Three, any planet’s sign, check compatibility, and more.
Quick answer
Aurae’s calculators work out your placements from your birth date, time and place — your Sun, Moon and Rising signs, single planets from Mercury to Pluto, Chiron and the North Node — plus a Sun-sign compatibility score and dated love windows. The Vedic tools give your nakshatra, Moon rashi, Lagna, dasha periods and a Kundli match. The Western calculators use the tropical zodiac, the Vedic ones the sidereal zodiac (Lahiri ayanamsa), and all of them run without an account.
Sun, Moon & Rising Calculator
Reveal your Big Three — the three signs at the core of your chart — in seconds.
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Free Birth Chart Calculator
Your Sun, Moon and Rising instantly — then save your birth chart with a free account.
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Love Timing Calculator
Your next love window — with real dates, from Venus & Jupiter transits to your chart.
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Numerology Calculator
Your Life Path number with every step of the maths shown, plus your name numbers and Personal Year.
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Nakshatra Calculator
Find your birth star (janma nakshatra) with its pada and lord, your Moon rashi and your current Mahadasha.
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Vedic Moon Sign Calculator
Your Moon rashi, nakshatra and pada in the sidereal zodiac, with your Western Moon sign beside it.
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Lagna Calculator
Your Lagna (Vedic ascendant) with its degree, nakshatra and lord, beside your Western rising sign.
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Dasha Calculator
The Mahadasha and Antardasha you’re in now, with dates, and every Vimshottari Mahadasha of your life.
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Kundli Matching Calculator
Guna Milan for two births: the score out of 36, its traditional band, and any Nadi or Bhakoot dosha.
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Chinese Zodiac Calculator
Your animal by the exact Lunar New Year date, with its element, yin or yang, year pillar and classic matches.
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Compatibility Calculator
Pick two signs for an instant compatibility score, strengths, and challenges.
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Compatibility Guides
In-depth guides for all 78 zodiac pairings, same-sign matches included — love, friendship, and trust.
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Daily Horoscope
Your personalized daily reading, drawn from your real planetary positions.
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Moon Sign Calculator
Find the sign that rules your emotional inner world.
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Venus Sign Calculator
Discover how you love, attract, and connect.
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Mercury Sign Calculator
Find the sign that shapes how you think, learn, and communicate.
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Mars Sign Calculator
Discover how you act, assert yourself, and go after what you want.
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Jupiter Sign Calculator
Find where you grow, take chances, and get lucky.
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Saturn Sign Calculator
Find where you meet limits, build discipline, and earn mastery.
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Uranus Sign Calculator
Find where you break the mould and need to be free.
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Neptune Sign Calculator
Find the sign that colours your dreams, ideals, and imagination.
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Pluto Sign Calculator
Find where you transform, confront power, and are reborn.
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North Node Calculator
Find the sign of your life’s direction — your karmic path (mean node).
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Chiron Sign Calculator
Find the sign of your deepest wound — and the healing you offer others.
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More tools coming soon
Synastry Calculator
SoonCompare two full birth charts for a deep compatibility reading.
Frequently asked questions
Do I need my birth time?
For your rising sign, yes: the Ascendant changes sign about every two hours, so the Big Three calculator asks for an exact time. The Moon changes sign every two to three days, so its time matters on a changeover day. The slower bodies, from Mercury out to Pluto, usually need only your birth date. If you don’t know your time, the single-planet calculators check your whole birth day and tell you when the planet changed sign that day.
Which zodiac do these calculators use?
The tropical zodiac — the Western standard, measured from the equinox — with positions from the astronomy-engine ephemeris. Where houses appear, they are Whole Sign houses. The Vedic tools — nakshatra, Vedic Moon sign, Lagna, dasha and Kundli matching — use the sidereal zodiac with the Lahiri (Chitrapaksha) ayanamsa instead, as Jyotish does.
What’s the difference between my Big Three and my birth chart?
Your Big Three is three placements: Sun, Moon and Rising. A birth chart holds every placement — the Sun through Pluto, Chiron, the lunar nodes and the Ascendant — and the houses they fall in.