Zodiac Sign Calculator
Find your Western zodiac sign by birth date.
Results update as you type.
How it works
The Western zodiac assigns a star sign based on the position of the sun at your birth, mapped to twelve date ranges, and this calculator finds yours. You enter your birth month and day, and it returns your zodiac sign. The twelve signs and their commonly used date ranges are: Aries (March 21–April 19), Taurus (April 20–May 20), Gemini (May 21–June 20), Cancer (June 21–July 22), Leo (July 23–August 22), Virgo (August 23–September 22), Libra (September 23–October 22), Scorpio (October 23–November 21), Sagittarius (November 22–December 21), Capricorn (December 22–January 19), Aquarius (January 20–February 18), and Pisces (February 19–March 20). Each sign is associated in astrology with an element (fire, earth, air, or water) and a set of personality traits, though these are cultural and astrological beliefs, not scientific facts. Zodiac signs are hugely popular in horoscopes, and knowing yours is a common piece of self-identification and social conversation. Note that the exact cutoff dates can shift by a day depending on the year and source, so if your birthday falls right on a boundary (making you a cusp), you may see slight variation between references. This calculator uses widely accepted standard dates. Enter your birth month and day to find your zodiac sign.
Match the birth month and day to the zodiac date ranges
The twelve Western zodiac signs each cover a range of dates spanning parts of two calendar months. The calculator compares your birth month and day to these ranges — for example, Aries runs March 21 to April 19 — and returns the matching sign.
Source:Western astrology date ranges
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter birth month (1-12) and birth day.
- 2
Adjust the options
Fine-tune any options to match your situation.
- 3
Read your result
Zodiac sign updates instantly as you type — no button to press.
Frequently asked questions
How do I find my zodiac sign?
Match your birth month and day to the twelve zodiac date ranges. For example, April 15 falls within Aries (March 21 to April 19). Enter your month and day and the calculator returns your sign. Each of the twelve signs covers about a month, spanning the end of one calendar month and the start of the next.
What are the twelve zodiac signs and dates?
Aries (Mar 21–Apr 19), Taurus (Apr 20–May 20), Gemini (May 21–Jun 20), Cancer (Jun 21–Jul 22), Leo (Jul 23–Aug 22), Virgo (Aug 23–Sep 22), Libra (Sep 23–Oct 22), Scorpio (Oct 23–Nov 21), Sagittarius (Nov 22–Dec 21), Capricorn (Dec 22–Jan 19), Aquarius (Jan 20–Feb 18), and Pisces (Feb 19–Mar 20).
What if my birthday is on the cusp?
If you were born on or near the boundary between two signs, you are said to be on the cusp. Because exact cutoff dates can shift by a day depending on the year and the source, people on the cusp sometimes see different signs listed in different references. Many cuspers feel they share traits of both neighboring signs.
Is the zodiac scientifically valid?
No. Astrology and zodiac signs are cultural and belief systems, not science; studies have not found that zodiac signs predict personality or events. This calculator simply identifies the traditional sun sign for a birth date. Many people enjoy horoscopes and zodiac signs for entertainment and self-reflection while understanding they are not scientifically established.
What is the difference between the zodiac and Chinese zodiac?
The Western zodiac assigns one of twelve signs based on your birth date within the year, tied to the sun's position. The Chinese zodiac assigns one of twelve animals based on your birth year in a repeating 12-year cycle. They are entirely separate systems, so you have both a Western sun sign and a Chinese zodiac animal.