How zodiac signs are determined

Your Western zodiac sign is based on where the sun was positioned along the zodiac belt on the day you were born. Each of the 12 signs corresponds to a roughly month-long date range, grouped into four elements: fire, earth, air, and water.

What if I was born right on the cutoff date?

Sign boundary dates can shift by a day depending on the year, since they follow the sun's actual position rather than a fixed calendar date. If you were born within a day or two of a cutoff shown here, either neighboring sign is worth reading about.

FAQ

Is this the same as my chinese zodiac sign?
No this is the Western (tropical) zodiac based on your birth month and day. Try our Chinese Zodiac Calculator for your zodiac animal based on birth year.

Is my birthdate stored anywhere?
No the calculation happens entirely in your browser and nothing is saved or sent anywhere.