This is a Chinese Zodiac calculator which calculates which animal you are in the Chinese Zodiac. To do that it needs to know the year you were born, the month you were born in and the day you were born.
Share in the comments which animal you are! I am a Horse.
Inspired by: The Zodiac Legacy book series.
Unlike most Chinese Zodiac calculators mine works on the Chinese Lunar Calendar which is different than the Gregorian Calendar (the Gregorian calendar is the calendar you use.) The Lunar Calendar is what the Chinese Zodiac goes by and it's new year happens between January 21 and February 20. So most Zodiac calculators are incorrect if you were born in January or February.