Zodiac Sign Calculator
Your zodiac sign, also called your sun sign or star sign, is determined by the position of the Sun at the moment of your birth — specifically by which of the twelve zodiac constellations the Sun was passing through. The Western zodiac divides the year into twelve equal segments, each governed by one of the twelve signs: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces. Each sign has a unique element (Fire, Earth, Air or Water), a ruling planet, a symbol and a distinctive set of personality traits that have been observed and documented across thousands of years of astrological tradition.
While your sun sign is the most widely known part of your astrological profile, it represents just one layer of a much richer picture. It reflects your ego, identity and the core drives that motivate you in life. Many people find that their sun sign resonates powerfully with their sense of self, even if they differ in some traits from the traditional description. Use this tool to instantly identify your sign, element and ruling planet — and explore what the ancient tradition of astrology says about your essential nature.
Frequently Asked Questions about Zodiac Signs
How do I find my zodiac sign?
Your zodiac sign is determined by your date of birth. Each sign corresponds to a specific range of dates in the year. Enter your birth date in the calculator above and your sign will be identified instantly, along with its symbol, element and ruling planet.
What are the 12 zodiac signs and their dates?
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), Pisces (Feb 19–Mar 20).
What are the four elements of the zodiac?
The twelve signs are grouped into four elements: Fire (Aries, Leo, Sagittarius) — passionate and energetic; Earth (Taurus, Virgo, Capricorn) — practical and grounded; Air (Gemini, Libra, Aquarius) — intellectual and communicative; Water (Cancer, Scorpio, Pisces) — emotional and intuitive.
What is the difference between a sun sign and a moon sign?
Your sun sign is determined by the position of the Sun at your birth and represents your core identity. Your moon sign is determined by the Moon's position and represents your emotional nature and inner world. For a complete astrological profile, many people also consider their rising sign (ascendant).
What is a cusp sign in astrology?
A cusp sign refers to being born on or near the boundary between two zodiac signs (typically within a day or two of the transition date). In Western astrology, the Sun is technically in only one sign at any given moment, so your birth date precisely determines your sign — but people born near the boundary may relate to traits of both adjacent signs.
Which zodiac signs are most compatible?
Generally, signs of the same element tend to be highly compatible: Fire with Fire, Earth with Earth, Air with Air, Water with Water. Signs in complementary elements also pair well — Fire and Air, Earth and Water. Opposite signs (Aries–Libra, Taurus–Scorpio, etc.) can experience powerful attraction through their differences.
What does my ruling planet mean?
Each zodiac sign is governed by a ruling planet that influences the sign's energy and themes. For example, Mars rules Aries (action, drive), Venus rules Taurus and Libra (beauty, love), Mercury rules Gemini and Virgo (communication, intellect). The ruling planet adds a layer of archetypal meaning to the sign's character.
Can two people born under the same zodiac sign be compatible?
Yes. Two people with the same sun sign often share core values, communication styles and life priorities, which can create strong natural understanding. However, full compatibility is determined by the complete birth chart, not just the sun sign, so same-sign couples can range from deeply harmonious to challenging.
How often do zodiac sign dates change?
The Sun enters each sign at slightly different times each year due to astronomical factors, meaning the exact cusp date can shift by a day. This is why someone born on the 20th or 21st of a transition month should check the exact cusp time for their birth year if they are unsure of their sign.
Is Western astrology the same as Vedic astrology?
No. Western astrology uses the Tropical zodiac, which is based on the seasons and fixed to the vernal equinox. Vedic (Jyotish) astrology uses the Sidereal zodiac, which is aligned with the actual constellations and currently sits about 23 degrees behind the Tropical zodiac. Most people's Vedic sun sign is one sign earlier than their Western sign.
What is the most powerful zodiac sign?
Power in astrology is not ranked by sign but by the strength of the full birth chart. Every sign has unique strengths: Aries and Leo lead and inspire, Scorpio transforms and endures, Capricorn and Taurus build and persist, and so on. Each sign expresses a different archetype of power.