Your zodiac sign, also called your Sun sign, is the sign the Sun was in on the day you were born. Enter your birthday above and the calculator finds it from the Sun's real position that year, with the exact degree, element, modality and ruling planet. This matters for cusp birthdays: the date the Sun changes sign shifts by a day from year to year, so a fixed date chart can be wrong. It is free, needs no sign-up and has no ads.
- Free, with no sign-up and no ads.
- Uses the Sun's real position in your birth year, not a fixed date table.
- Warns you if the Sun changed sign on your birthday and names both signs.
- Shows the exact degree, element, modality and ruling planet.
- Birth time and place are optional; your data stays in your browser.
- Save the result as a 9:16 share image.
Example reading
Input: Born 20 April 1999
Result: Aries or Taurus, depending on the time. In 1999 the Sun entered Taurus at about 12:47 UTC on 20 April, so the calculator flags this birthday as a cusp day and names both signs. Born that afternoon or evening in London, this person is a Taurus (about 0 degrees): steady, loyal and practical. Born that morning, they are a late Aries. Many date charts simply list 20 April as Taurus, which would be wrong for a morning birth.
Zodiac sign dates
| Sign | Usual dates | Element | Ruler |
|---|---|---|---|
| Aries | 21 Mar – 19 Apr | Fire | Mars |
| Taurus | 20 Apr – 20 May | Earth | Venus |
| Gemini | 21 May – 20 Jun | Air | Mercury |
| Cancer | 21 Jun – 22 Jul | Water | Moon |
| Leo | 23 Jul – 22 Aug | Fire | Sun |
| Virgo | 23 Aug – 22 Sep | Earth | Mercury |
| Libra | 23 Sep – 22 Oct | Air | Venus |
| Scorpio | 23 Oct – 21 Nov | Water | Mars / Pluto |
| Sagittarius | 22 Nov – 21 Dec | Fire | Jupiter |
| Capricorn | 22 Dec – 19 Jan | Earth | Saturn |
| Aquarius | 20 Jan – 18 Feb | Air | Saturn / Uranus |
| Pisces | 19 Feb – 20 Mar | Water | Jupiter / Neptune |
These dates are averages. The exact day the Sun moves into a sign can be a day earlier or later depending on the year and your time zone. That is why the calculator works from your actual birth year.
Born on a cusp?
If your birthday is within a day of a sign change, you were born on the cusp. Astrologically you still have one Sun sign: the one the Sun was actually in at the moment you were born. There is no blended cusp sign.
Enter your full birth date. If the Sun changed sign that day, the calculator tells you which two signs are possible. Add your birth time and place to get the exact answer.
Your zodiac sign is only one part of you
Your Sun sign describes your core identity and what energises you. Your Moon sign describes your emotional needs, and your Rising sign describes how you come across. Together they are called the Big Three.
Your Mercury, Venus and Mars signs add how you think, love and act. If your Sun sign description does not quite fit, your Moon or Rising often explains why.
How to find your zodiac sign
- Enter your birth date. The year matters for cusp days.
- Add your birth time and place if you know them. They are optional.
- Tap Find my Sun sign to see your sign, degree, element and ruler.
- If the Sun changed sign that day, add your birth time to settle it.
- Read your Big Three next to see your Moon and Rising signs.
Frequently asked questions
What is my zodiac sign?
Your zodiac sign is your Sun sign: the sign the Sun was in when you were born. Enter your birthday above to find it from the Sun's real position in your birth year.
Is my zodiac sign the same as my Sun sign?
Yes. When people say their zodiac sign or star sign, they mean the Sun sign.
What if I was born on a cusp?
You have one sign, the one the Sun was in at your birth time. The calculator flags cusp days and uses your birth time, if given, to decide.
Why do different websites give different dates for signs?
Because the Sun's entry into each sign shifts by about a day from year to year. Fixed date tables use averages; this calculator uses the real position for your birth year.
Do I need my birth time?
Only if you were born on a day when the Sun changed sign. Otherwise your birth date is enough.
What are the 12 zodiac signs in order?
Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces.