Sun Sign Calculator
Estimate your sun sign from birth date using approximate zodiac date ranges.
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Formula
The calculator compares the birth month and day to approximate sun sign date boundaries.
Worked Example
Your Sun Sign: The Core of Your Zodiac Identity
- There are 12 sun signs, each spanning roughly 30 days: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces
- Cusp dates (the transition between signs) vary by year because the Sun does not change signs at the exact same time annually
- Your sun sign describes your fundamental character, while moon and rising signs add emotional depth and outward expression
- Sun signs are grouped by element (Fire, Earth, Air, Water) and modality (Cardinal, Fixed, Mutable) for deeper personality analysis
If you were born near a cusp date, your exact birth year matters. The Sun may have been in the previous or next sign depending on the year.
You can also calculate changes using our Moon Sign Calculator, Rising Sign Calculator, Birth Chart Calculator or Mercury Sign Calculator.
Frequently Asked Questions
Is sun sign the same as zodiac sign?
In everyday conversation, yes. When people ask "what is your sign?" they are referring to your sun sign, which is determined by your birth date.
What if I was born on a cusp date?
Cusp dates are the days when the Sun transitions between signs. The exact transition time varies by year, so someone born on a cusp could be either sign depending on the year and time of birth.
Why do horoscopes sometimes not feel accurate?
Sun sign horoscopes are general because they apply to roughly one twelfth of the population. Your moon sign, rising sign, and other planetary placements create a much more specific and personal profile.
What are the zodiac elements?
The 12 signs are grouped into four elements: Fire (Aries, Leo, Sagittarius), Earth (Taurus, Virgo, Capricorn), Air (Gemini, Libra, Aquarius), and Water (Cancer, Scorpio, Pisces). Each element shares core personality characteristics.
Does my sun sign change over my lifetime?
No. Your sun sign is fixed at birth and does not change. However, the Sun progresses through other signs in predictive astrology techniques, which is a different concept from your natal sun sign.
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