Zodiac Sign Finder

By the Age-Finder team · Last updated 7 November 2026

Born on a boundary day, check the changeover for your birth year, since the Sun crosses signs at a moment that shifts by up to a day.

Asking what is my zodiac sign is one of the most common birthday questions there is. Your zodiac sign comes from the position of the Sun on the day you were born.

Enter your date of birth in the calculator above for an instant answer, or find your birth date in the table below and you will know your sign in seconds, along with its element and traditional trait keywords.

A word of honesty first: zodiac signs are astrology, a cultural tradition thousands of years old, not science. Treat the traits below as storytelling and entertainment, the way horoscope columns intend them, not as facts about your personality.

The zodiac sign date table

Find the date range containing your birthday. Note that cusp dates can shift by a day from year to year (more on that below), so if your birthday falls on the first or last day of a range, double-check the exact year.

The trait words in this table match the ones the calculator above shows for each sign.

The four elements at a glance

Astrological tradition groups the twelve signs into four elements of three signs each. Each element is said to color how a sign expresses itself:

• Fire (Aries, Leo, Sagittarius): action-oriented and enthusiastic: the tradition’s go-getters.
• Earth (Taurus, Virgo, Capricorn): practical and grounded: the tradition’s builders and planners.
• Air (Gemini, Libra, Aquarius): social and intellectual: the tradition’s communicators and idea people.
• Water (Cancer, Scorpio, Pisces): emotional and intuitive: the tradition’s empaths and dreamers.

Modality, ruler, symbol and birthstone

Two more groupings complete the traditional profile of each sign. Modality sorts the signs into Cardinal (the starters), Fixed (the stabilisers) and Mutable (the adapters), four signs each. Each sign also has a traditional ruling planet, a glyph, an opposite sign six places away on the wheel, and a birthstone.

For Scorpio, Aquarius and Pisces the table shows both planets because tradition changed its mind: the older system gives Scorpio to Mars, Aquarius to Saturn and Pisces to Jupiter, and the modern system gives them to Pluto, Uranus and Neptune, the planets discovered after the tradition was set.

Both versions are still in use, so neither is wrong.

Cusp dates: born on the border

Were you born on, say, March 20 or 21, June 20 or 21, or September 22 or 23? Then you are on a cusp, and your sign depends on the exact year, and even the exact hour, you were born.

The Sun does not cross from one sign to the next at midnight on a fixed calendar date; the moment shifts by up to a day from year to year as the calendar and the solar year drift against each other.

What to do: if your birthday is within a day or two of a boundary in the table, look up the Sun’s sign for your specific birth year (an ephemeris or any reputable astrology calculator will give the exact changeover moment).

Do not just pick the sign you like better, though plenty of people do, and the tradition has a playful name for it: being “born on the cusp” of two signs.

The cusp is the day or two either side of a boundary, not a separate sign. Someone born on 19 or 20 April sits on the Aries-Taurus cusp: the changeover lands on one of those two days depending on the year, and the birth time settles it.

A birthday on 29 February needs no cusp check at all: it falls before 21 March, so it is Pisces in every year, leap or not.

Worked example: born June 15

Take someone born on June 15, any year. Step 1: scan the table: June 15 falls between May 21 and June 20. Step 2: read the row: that range is Gemini, an Air sign.

Step 3: check the cusp: June 15 sits comfortably mid-range, five days from the Cancer boundary, so no year-to-year shift applies. Answer: Gemini, traditionally curious, witty, and adaptable.

How to find your zodiac sign in three steps

1. Confirm your exact birth date, month and day. The birth year does not change your sign in the fixed table, but it matters on a cusp day, when the changeover moment can fall on either side of midnight.
2. Match it to the table above. Find the date range containing your birthday and read off your sign, element, and traditional traits.
3. Check the cusp. Birthday within a day or two of a boundary? Verify the exact changeover for your birth year. Curious what weekday that birthday fell on? The Day of the Week Calculator gives the weekday for any date, and the guide behind it explains why the weekday shifts from year to year.

Beyond the Sun sign: Moon and rising

Your Sun sign is only one of three placements astrologers ask about. The Moon sign is the sign the Moon was in when you were born. The Moon changes signs about every two and a half days, so finding it needs your exact birth time and place, not just the date.

The rising sign, or Ascendant, is the sign that was on the eastern horizon at the exact moment of your birth, and it changes roughly every two hours, so it needs the birth time to the hour as well.

This calculator does not compute either one. It answers the Sun-sign question only, from the month and day. If you want the full traditional picture, a birth chart calculator that takes your birth time and place is the next step.

What your birth date says about you: keep exploring

Your Sun sign is only one lens on your birth date. Three companion tools on this site complete the picture. What Generation Am I? matches your birth year to a generation, from the Silent Generation to Gen Beta, with the year ranges and the boundary years explained.

The Chinese Zodiac Finder gives your animal sign and element from your exact birth date, with the Lunar New Year boundary trap spelled out. The Zodiac Compatibility Calculator compares two signs the traditional way, and the Birthstone and Birth Flower Finder gives the stone and flower for your sign and month.

One Birthday, Two Zodiacs: Tropical vs Sidereal Side by Side

The full 12-sign comparison, with worked examples. The Western tropical zodiac is pinned to the equinox and the seasons; the sidereal (Vedic) system tracks the fixed stars. They currently sit about 23-24 degrees apart.

The sidereal dates above are approximate and shift slightly by year, because the Lahiri ayanamsa is a correction that moves with the precession of the equinox. Treat the table as a guide to which system gives which answer, not as a day-exact lookup.

Worked example: born April 10

Tropical zodiac: Aries (March 21 to April 19). Sidereal (Lahiri): Pisces (March 14 to April 13). One date, two answers, each correct inside its own system.

Is there any science behind zodiac signs?

No, and the tests are unusually direct. In 1985 the physicist Shawn Carlson published a double-blind test in Nature: 28 professional astrologers, selected and endorsed by the National Council for Geocosmic Research, were given natal charts and asked to match them to personality profiles from the California Psychological Inventory.

They picked the right profile about 34% of the time, against a 33% chance baseline. The people themselves could not pick out their own chart interpretation above chance either. Carlson’s conclusion was that the results “strongly refute the astrological thesis”.

The finding has held up. A 2003 meta-analysis by Geoffrey Dean and Ivan Kelly pooled more than 40 controlled studies, about 700 astrologers and 1,150 birth charts, and found a mean effect size of 0.051, statistically indistinguishable from chance.

A 2006 study by Hartmann, Reuter and Nyborg tested more than 15,000 people across two large datasets and found no evidence for any link between date of birth and personality or general intelligence.

The feeling that a horoscope “nails” you has a name and an experiment behind it. The Barnum effect, named after the showman P.T. Barnum and demonstrated by the psychologist Bertram Forer in 1949, is the tendency to accept vague, flattering descriptions as personal.

Forer gave 39 students an identical 13-sentence personality profile assembled from a newsstand astrology book, told each of them it was their own, and the class rated its accuracy at 4.26 out of 5. Enjoy the zodiac as culture and fun, not as psychology.

Zodiac facts

• The boundary is a moment, not a zone. Each sign change happens at a specific moment, not at midnight, and that moment drifts by up to a day across the leap-year cycle. Born at midnight on a boundary date, the sign can flip.
• The cusp is the day or two either side of a boundary (for example, Aries-Taurus 19-20 April), not a separate sign.
• Ayanamsa. Sidereal astrology corrects for axial precession (about 1 degree per 71.6 years) with an ayanamsa system. Lahiri and Fagan-Bradley are the two main ones, giving slightly different date ranges.
• Twelve 30-degree segments. The tropical zodiac divides the ecliptic into twelve equal 30-degree parts starting at 0 Aries on the March equinox.

What other zodiac calculators offer

Most zodiac calculators on the first page of results are fixed-date lookups, and this one is too. What differs is how much of the traditional profile they show, and whether they say so honestly. The table below lines this page up against the three calculators that rank for the same query.

Where this page loses, stated plainly: it does not count the days to the next sign change the way EZ Calculators does, and it does not compute the Sun’s actual position on a boundary day the way Robérin does, which settles a cusp case to the minute.

It does not calculate a Moon sign or a rising sign. What it adds is the full tropical-versus-sidereal table with worked examples, the modality, ruler, symbol and birthstone for every sign, and the science section with the named studies.

Frequently asked questions

Sources

• Encyclopaedia Britannica: Zodiac (the 12 signs, their date ranges and how the zodiac relates to the constellations).
• Tatum (2010), Journal of the Royal Astronomical Society of Canada: the tropical date ranges used in Table 1.
• The Old Farmer’s Almanac: the 12-sign table with element, quality, ruling planet and birthstone; precession at about 1 degree per 72 years.
• Carlson, S. (1985). A Double-Blind Test of Astrology. Nature.
• Dean, G., and Kelly, I. (2003). Meta-analysis of controlled astrology studies. Journal of Consciousness Studies.
• Hartmann, P., Reuter, M., and Nyborg, H. (2006). The relationship between date of birth and individual differences in personality and intelligence. Personality and Individual Differences.
• Forer, B. R. (1949). The fallacy of personal validation: a classroom demonstration of gullibility. Journal of Abnormal and Social Psychology, 44, 118-123.
• Age-Finder methodology (how dates are handled).