What Zodiac Sign Am I? By Birth Date | AgeGapCalc
Your Western zodiac sign is determined by the range of calendar dates your birth date falls into, such as Aries (March 21 to April 19).
Our calculator reports your sign from the birth date you enter.
The Date Ranges
Western sun signs follow fixed date ranges, so the sign is decided entirely by the day and month of birth, not the year. The ranges can shift by a day at the boundaries in some years.
Why the Date Decides
Because the zodiac is defined by the sun's position on a fixed calendar, the sign for a given date is constant, which makes it a simple lookup rather than a calculation.
Also Try Chinese Zodiac
The Chinese system uses a twelve-year cycle rather than the month, so it depends on the birth year and, for people born in January or February, on the date of the lunar new year.
Boundary Dates Need Care
If a birthday falls on a boundary between two signs, sources sometimes disagree, because of the exact moment the sun changes sign and because of time-zone differences.
For a definite answer on a boundary date, check the sign using the time and place of birth rather than the date alone.
Common Mistakes
The usual error is assuming the birth year changes the Western sun sign. It does not, because the sign depends only on the day and the month.
The second is ignoring the lunar new year for the Chinese zodiac. Anyone born in January or February may still belong to the previous animal sign.
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Open the Age Calculator →Frequently Asked Questions
Is zodiac based on the year or date?
Western zodiac uses the birth date range; Chinese zodiac uses the birth year.
What if I am on a boundary day?
Boundary days belong to one sign; the tool uses standard ranges.
Can I check any date?
Yes.
Is this astrology advice?
No, it is a date lookup.
Does it show Chinese zodiac too?
Yes, from the birth year.
Private?
Yes.
How do I find the sign for a date in the future?
Enter that date. The sign depends only on the day and month, so it is identical for every year.
Why is my sign different in some apps?
Sources use slightly different boundary dates for signs such as Capricorn and Aquarius, which shifts anyone born on the cusp.
Can I check a Chinese zodiac sign for another year?
Yes. The Chinese animal cycles every twelve years, so the same animal returns for anyone born twelve years apart.