Free astrology calculator
Sun sign calculator
Your sun sign, or star sign, is the sign the Sun was in on your birthday. Enter your date of birth.
How it works
The dates printed in magazines (for example Aquarius, January 20 to February 18) are approximate, because the Sun enters a sign at a slightly different moment each year. If you were born on a cusp day, we calculate the exact moment of the sign change.
Western astrology uses the tropical zodiac, which starts at the March equinox. It is not the same as the constellations in the sky.
The positions of the Sun, Moon and planets are calculated with astronomical precision for your moment and place of birth. The interpretation follows the Western astrological tradition: a centuries-old way of looking at the sky, not a scientific prediction.