Sun Sign, Rising Sign & Chinese Zodiac — Birth Date Astrology Calculator

Free Zodiac Sign Calculator & Star Sign Finder

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Your zodiac sign is the foundational cornerstone of personal astrology. Generated from the exact position of the Sun across the 360-degree celestial ecliptic at the moment of your birth, it reveals your core identity, vital temperament, life purpose, and conscious drive.

This free zodiac sign calculator goes beyond a basic sun sign forecast. It calculates your exact solar constellation degree, elemental triplicity, quadruplicity modality, 10-degree decan sub-ruler, and Chinese lunar animal archetype—giving you a multidimensional astrological blueprint in seconds.

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Sun Sign & Decans

Determines your exact 30-degree solar placement and 10-degree decan sub-ruler to unveil your core ego, personality drives, and life purpose.

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Elements & Modalities

Categorizes your cosmic archetype into its elemental triplicity (Fire, Earth, Air, Water) and quadruplicity modality (Cardinal, Fixed, Mutable).

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East-West Synthesis

Bridges classical Western astrology with Chinese lunar zodiac animals and Yin/Yang polarities for a multidimensional archetype analysis.

integration_instructions Step-by-Step Walkthrough

How to Find Your Free Zodiac Sign in 3 Simple Steps

Follow these simple steps to reveal the celestial configurations active at your exact moment of birth.

1

Enter Birth Date & Name

Input your full name and date of birth to calculate your solar constellation degree and calendar alignment.

2

Add Time & Place (Optional)

Providing your birth time and city refines the calculation of house cusps, decan boundaries, and planetary aspects.

3

Get Your Free Zodiac Profile

Receive your full star sign breakdown — Sun sign, Rising sign, decan ruler, elemental type, modality, Chinese zodiac animal, and love compatibility forecast.

table_chart Comprehensive Zodiac Reference

The 12 Zodiac Signs: Dates, Elements, Modalities & Ruling Planets

The ecliptic is divided into 12 equal 30-degree sectors, each representing a unique archetypal expression of human psychology and spiritual motivation:

Sign & Symbol Date Range Element Modality Ruling Planet Core Archetype
♈ Aries Mar 21 – Apr 19 Fire Cardinal Mars The Trailblazer: Bold initiative, courage, pioneering drive
♉ Taurus Apr 20 – May 20 Earth Fixed Venus The Anchor: Steadfast endurance, material stability, sensual grace
♊ Gemini May 21 – Jun 20 Air Mutable Mercury The Messenger: Intellectual agility, social wit, adaptive curiosity
♋ Cancer Jun 21 – Jul 22 Water Cardinal Moon The Protector: Nurturing empathy, intuitive loyalty, emotional sanctuary
♌ Leo Jul 23 – Aug 22 Fire Fixed Sun The Sovereign: Magnetic charisma, creative radiance, dignified leadership
♍ Virgo Aug 23 – Sep 22 Earth Mutable Mercury The Analyst: Methodical precision, service excellence, discerning intellect
♎ Libra Sep 23 – Oct 22 Air Cardinal Venus The Harmonizer: Diplomatic equilibrium, artistic taste, partnership ethics
♏ Scorpio Oct 23 – Nov 21 Water Fixed Pluto & Mars The Alchemist: Psychological power, transformative rebirth, fierce depth
♐ Sagittarius Nov 22 – Dec 21 Fire Mutable Jupiter The Philosopher: Expansive wisdom, nomadic freedom, truth seeking
♑ Capricorn Dec 22 – Jan 19 Earth Cardinal Saturn The Architect: Disciplined ambition, pragmatic mastery, generational legacy
♒ Aquarius Jan 20 – Feb 18 Air Fixed Uranus & Saturn The Visionary: Non-conformist brilliance, humanitarian ideals, innovation
♓ Pisces Feb 19 – Mar 20 Water Mutable Neptune & Jupiter The Mystic: Transcendent empathy, imaginative intuition, spiritual unity
stars Astrological Blueprint

The 4 Core Astrological Dimensions of the 12 Zodiac Signs

Understanding your zodiac archetype goes far beyond reading a basic horoscope. In your complete Vedic Birth Chart, the 12 signs are structured across these 4 foundational pillars:

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1. The 4 Elements: Fire, Earth, Air & Water

Fire (Aries, Leo, Sagittarius) ignites inspiration and courage.
Earth (Taurus, Virgo, Capricorn) grounds practical endurance.
Air (Gemini, Libra, Aquarius) expands intellectual connections.
Water (Cancer, Scorpio, Pisces) deepens emotional intuition. See these elemental temperaments reflected in our biometric Hand Shape Analysis.

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2. The 3 Modalities: Cardinal, Fixed & Mutable

Cardinal signs initiate seasons and lead action.
Fixed signs preserve, stabilize, and build enduring foundations.
Mutable signs adapt, synthesize, and guide transitions between cycles.

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3. The 36 Decans: 10-Degree Sub-Rulerships

Every sign spans 30 degrees broken into three 10-degree decans. Each decan is co-governed by another planet of the same triplicity, explaining why individuals born in early, middle, or late degrees of a sign exhibit distinct behavioral nuances.

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4. Chinese Lunar Zodiac & Yin-Yang Polarities

Synthesizing Western solar signs with the 12 Chinese lunar animal archetypes (Rat to Pig) and Yin/Yang energetic polarities produces a holistic cross-cultural view of your interpersonal dynamics. Explore your lunar animal in our Chinese Zodiac Oracle.

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Cusp Birthdays & Solar Ingress: Are You Truly Born Between Two Signs?

Many people whose birthdays fall on the transition dates between two zodiac signs—such as April 19–20 (Aries-Taurus cusp) or July 22–23 (Cancer-Leo cusp)—believe they have "two signs." In astronomical reality, the Sun never occupies two constellations simultaneously.

The Sun transitions into a new zodiac sign at an exact astronomical second (referred to as Solar Ingress). Because Earth takes approximately 365.2422 days to orbit the Sun, leap years and calendar drift cause the exact moment of ingress to shift by several hours each year. While people born within 48 hours of an ingress feel the blended energetic resonance of both archetypes, entering your exact time of birth into our calculator eliminates ambiguity by determining the precise solar degree of your true natal sign.

psychology Cosmic Self-Discovery

Deepening Your Astrological Self-Knowledge Beyond the Sun Sign

Your Sun sign represents the solar core of your conscious personality, but it functions within an interconnected matrix of psychological and astrological indicators. Comparing your zodiac traits with your 16-type archetype in the Personality Type Test clarifies how your astrological drives translate into cognitive decision-making. In relationships, test your elemental synergy and synastry using our Love Compatibility oracle.

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Your ruling planet and modality strongly influence vocational leadership in our Career Prediction and monetary flow in Wealth Prediction.

calendar_today Daily Planetary Transits

Track how real-time planetary movements impact your sign each morning with the Daily Horoscope, discover your astrological gemstone in the Birthstone Calculator, or examine your multi-year lifecycles with the Destiny Timeline Forecaster.

help_outline Got Questions?

Frequently Asked Questions About Zodiac Signs & Astrology Calculations

Your zodiac sign (Sun sign or star sign) is determined by the celestial longitude of the Sun at your exact date of birth. The 12 signs span: Aries (Mar 21–Apr 19), Taurus (Apr 20–May 20), Gemini (May 21–Jun 20), Cancer (Jun 21–Jul 22), Leo (Jul 23–Aug 22), Virgo (Aug 23–Sep 22), Libra (Sep 23–Oct 22), Scorpio (Oct 23–Nov 21), Sagittarius (Nov 22–Dec 21), Capricorn (Dec 22–Jan 19), Aquarius (Jan 20–Feb 18), and Pisces (Feb 19–Mar 20).
A zodiac sign calculator determines your astrological Sun sign based on precise solar coordinates at your date of birth, alongside your elemental triplicity (Fire, Earth, Air, Water), modality (Cardinal, Fixed, Mutable), 10-degree decan sub-ruler, and Chinese lunar zodiac animal archetype.
Your Sun sign represents your core identity, conscious ego, and life purpose. Your Moon sign reflects your subconscious emotional instincts and inner peace. Your Rising sign (Ascendant) represents your outer persona, physical vitality, and how others perceive you upon first impression.
Being born on a cusp occurs when your birthday falls within 2 to 3 days of the Sun transitioning from one zodiac sign to the next. While you blend personality traits of both archetypes, the Sun occupies only one sign at the exact minute of birth. Providing exact birth time reveals your true astrological solar sign.
The 12 signs are divided into 4 elemental triplicities: Fire (Aries, Leo, Sagittarius — passion, willpower, and initiative), Earth (Taurus, Virgo, Capricorn — grounded practicality, stability, and structure), Air (Gemini, Libra, Aquarius — intellect, communication, and social connection), and Water (Cancer, Scorpio, Pisces — emotional depth, empathy, and intuitive insight).
Modalities describe how each sign directs energy across seasonal cycles: Cardinal signs (Aries, Cancer, Libra, Capricorn) initiate new beginnings; Fixed signs (Taurus, Leo, Scorpio, Aquarius) sustain, stabilize, and build endurance; Mutable signs (Gemini, Virgo, Sagittarius, Pisces) adapt, transition, and synthesize change.
Each 30-degree zodiac sign is divided into three 10-degree segments called decans. Each decan is co-ruled by a different planetary ruler within the same elemental family, explaining why people born in early, middle, or late degrees of the same sign exhibit distinct personality subtleties.
Western astrology tracks solar coordinates across the 12 constellations of the ecliptic over a single year. Chinese astrology operates on a 12-year lunar cycle governed by animal archetypes (Rat to Pig) and the 5 Taoist elements (Wood, Fire, Earth, Metal, Water), revealing interpersonal dynamics and life eras.
While date of birth accurately determines your Sun sign, exact time of birth pinpoints the degree of the Ascendant (Rising sign) which changes approximately every 2 hours, and determines exact decan boundaries for cusp birthdays.
Yes. This zodiac calculator is 100% free with instant online access. No account registration, recurring subscription, or payment is required to generate your full astrological archetype report.

Spiritual & Entertainment Disclaimer: All astrological readings, palmistry analyses, tarot interpretations, and spiritual insights provided on Love Guruu are for self-discovery and entertainment purposes only. They do not constitute medical, legal, psychological, or financial advice.