Sun Sign Calculator
Enter your birth date to discover your Western zodiac sun sign instantly. Free, browser-only, no signup.
What is Sun Sign Calculator?
Your sun sign is determined by the position of the sun on the day you were born. It's the most widely used zodiac sign in Western astrology — the one you see in horoscope columns.
Just enter your birth date and the calculator will instantly identify your sun sign, along with its symbol, element, ruling planet, modality, and key personality traits.
All calculations run entirely in your browser. No data is sent anywhere.
How to use
Frequently asked questions
The sun enters a new sign on a slightly different date each year (±1 day). If you were born on the boundary day, the result shows the most likely sign. For exact cusp cases, an ephemeris with your birth year and time gives a definitive answer.
Yes — 'sun sign', 'star sign', and 'zodiac sign' all refer to the same thing: the sign the sun was transiting at the time of your birth.
Each sign belongs to one of four elements — Fire, Earth, Air, or Water — which describes its fundamental energy and temperament.