Sia
Sia (born December 18, 1975, Adelaide, Australia), aged 50, is an Australian singer and songwriter. Sia is best known for This Is Acting, Healing Is Difficult and 1000 Forms of Fear. Sia's honours include NRJ Music Award for International Song of the Year and NRJ Music Award for International Female Artist of the Year.
Sia’s zodiac sign is Sagittarius, and in the Chinese zodiac they are a Wood Rabbit, with Life Path 7 in numerology.
Sagittarius, and in the Chinese zodiac they are a 
Wood Rabbit, with 
Life Path 7 in numerology.How compatible are you with Sia?
Your birthday, just below, gives your match percentage with Sia. Under a minute.
Your AsterNym Match
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Two details and you have your number with Sia. Under a minute, and it is real astrology, not a quiz.
Your result includes:
- · Your compatibility percentage
- · What attracts you to each other
- · What you would bring to the match
- · Where you might clash
- · Whether you share lucky numbers, colours, stones or seasons
Sia’s AsterNym identity
The Steadfast Seeker
Earth represents stability. Earth-led charts are associated with patience, responsibility and the ability to make people or projects feel supported. Life Path 7 represents inquiry: study, solitude and the need to understand what others may simply accept.
Earth Day Master (BaZi) × mutable Sun × Life Path 7, on the intuitive plane.
How common is the name Sia in the U.S.?
#1107
US rank in 2025
~2,795
Americans share it since 1880
2025
its peak year
US Social Security Administration public records
Sia’s lucky numbers, colours and stones
Traditional correspondences calculated from AsterNym’s astrology, wuxing and numerology system.
Lucky numbers
7 · 3 · 4 · 6
Lucky colours
Green & Teal
Lucky day
Thursday
Direction
→ East
Season
spring
Stones
Turquoise, Yellow Sapphire, Green Aventurine
Flower constellation
🤍 Narcissus · 🌸 Peony · 🌿 Fern
Frost white · Rose-gold · Forest
The same wuxing & numerology correspondences as your own print. One tradition, read for everyone
What the chart says
Sia, according to the stars
Core essence
Sia is the friend who says "let's just go" and means today. The core of Sia is faith that the world is bigger and better than the room they are in, and a restlessness to go and check. They are honest to the point of it being a sport, funny by accident, and impossible to keep small. Freedom is not a preference, it is oxygen.
The vibe
Underneath, Sia processes by talking. The Moon in Gemini means a feeling is not real until it has been said out loud, ideally to two people, ideally with a joke attached. What Sia needs to feel safe is someone who will listen to the whole thought, including the three tangents, without rushing them to a point.
How Sia wants to be loved
Sia wants to be loved completely or not at all. Venus in Scorpio is intense, private and all in, and wants the same depth back: no games, no half measures. Trust is the whole thing. Be honest with Sia even when it costs you, and they will be the most devoted person you have ever met.
How Sia creates
How Sia makes things happen: they are the ground everyone else stands on. A Yang Earth day master is the mountain, reliable, slow to move, immovable once it has. Sia creates by holding: the plan, the people, the standard. They are trusted before they have said a word, and the work is remembering that mountains are allowed to want things too.
Instinct
Instinct: Sia is gentle and diplomatic, a Rabbit year, and their gut reaction is to keep the peace and read the room. Graceful, kind, quietly discerning, and much tougher than the soft manners suggest. The Wood year adds growth: ideals, ambition, a need to be getting somewhere.
Purpose
Purpose: Life Path 7 is the seeker. Sia is here to understand, to go deep rather than wide, to keep a private inner world that most people never see. Thoughtful, intuitive, happiest with time alone, and learning to let the right people in.
Triggers
Triggers: being bored, and being talked over. Mars in Gemini fights with words and wins, then forgets it happened. Sia scatters energy across three projects at once and somehow finishes two. The trick is choosing the argument worth having.
Computed from Sia's birth date, not guessed. The full working is below.
Where Sia sits
Six lines. Tap where you sit on each.
Sia’s dot is placed from the chart. Yours is wherever you put it.
You likely balance a tight inner circle with a wider orbit you dip into.
You may leap first and adjust as you go. Waiting can feel like losing momentum.
You likely share some feelings openly and keep others to yourself.
You likely handle some friction right away and let smaller things settle.
You likely balance practical steps with room to imagine further.
You may feel connection fast. Chemistry can arrive before the details do.
Tap each line where you sit.
All twelve of yours, from your birth date →✦ A real star from their birth night
Dedicate a star to Sia
Three stars chosen from the real sky above Adelaide on the night they were born. Choose the story that connects you.
No public birth time is available, so this is a 9:00 p.m. reference evening sky for that date and place. It is connected to the night of birth; it is not the sky at the birth minute, and no other reading on this page uses that time. Dedications are commemorative AsterNym records and do not rename or confer ownership of stars.
If you only read one paragraph
Sagittarius Sun
Sagittarius SunNeeds a horizon, any horizon.
Sia's Sun was in Sagittarius for the whole of December 18, 1975, so no birth time is needed to settle it. Traditional Sagittarius readings associate the sign with distance, belief and candour: travel, big questions and an answer given before it was asked for. Astrologers describe it as the mutable fire sign, ruled by Jupiter, and read it for optimism and appetite. The corresponding tension is overreach, with the classical caution that the horizon is more attractive than the ground underfoot.
Wood Rabbit
Wood RabbitSoft voice, sharp read.
Sia was born on December 18, 1975, which falls in a Wood Rabbit year of the Chinese calendar. Traditional Rabbit readings emphasise tact, grace and the ability to settle a room without seeming to try. The Chinese almanacs describe the Rabbit as the diplomat of the cycle, alert to subtleties and fond of comfort. The corresponding caution in the tradition is avoidance: the tendency to slip away from a conflict that needed to happen.
Life Path 7
Life Path 7Digs under every answer.
Sia's birth date, December 18, 1975, reduces to Life Path 7 under the numerology method AsterNym uses. Traditional Life Path 7 readings associate the number with inquiry, analysis and solitude: the need to understand what others simply accept. Numerologists describe it as the path of the seeker, reflective and private. The corresponding tension is withdrawal, with the caution that a mind at home in its own company can forget to come out.
What stands out in Sia’s chart
- The tightest major aspect in Sia's date-only chart is Mercury sextile Uranus, with an orb of under 1°.
- Sia combines an Earth Day Master in BaZi with a mutable Sun and a Life Path on the intuitive plane, the combination AsterNym calls The Steadfast Seeker.
Sia’s birth chart
Reference chart · birth time unknown
No documented birth time exists for Sia, so the positions below are checked across the whole birth date, not fixed at noon. The Moon ranges from 12° to 25° Gemini depending on the hour. The wheel's houses are a solar chart, counted from the Sun's sign, because the Ascendant needs a time.
No birth time, so the houses are a solar chart: the Sun’s sign counts as house 1. A documented time would place them from the Ascendant instead.
Placements
Tap one to light it on the wheel.
The working: aspects, Chiron and the asteroids, dominant planets and configurationsshow
Aspects across every possible birth time
Stable aspects hold for any birth hour. Possible ones depend on the hour, so their orb is a range rather than a number. Orb policy western_v1.
stableMercurysextileUranus0.0° to 1.1° orb
Sia’s mind opens doors for their need for freedom. An easy alliance, and it pays off when it is used.
stableNeptunesextilePluto0.5° orb
Sia’s imagination opens doors for their depths. An easy alliance, and it pays off when it is used.
stableSunoppositionMars2.8° to 4.2° orb
Sia’s core identity pulls against their drive from across the wheel.
stableJupitertrineNeptune2.8° orb
Sia’s growth flows straight into their imagination. Effortless, which is exactly why it gets taken for granted.
stableJupiteroppositionPluto3.4° orb
Sia’s growth pulls against their depths from across the wheel.
stableSaturnsquareUranus3.8° to 3.9° orb
Sia’s discipline grinds against their need for freedom.
stableMercurysquarePluto4.6° to 6.2° orb
Sia’s mind grinds against their depths. The friction is lifelong. Worked with, it builds real strength.
stableVenusconjunctionUranus6.5° to 7.6° orb
Sia’s affections and need for freedom act as one.
possibleMoonsextileJupiterorb from 0.0° to 10.5° depending on birth time
possibleMoonconjunctionMarsorb from 0.1° to 9.8° depending on birth time
possibleMoonoppositionNeptuneorb from 0.4° to 13.4° depending on birth time
possibleSunoppositionMoonorb from 0.6° to 12.6° depending on birth time
Chart signature
Elements
- Fire4 of 10
- Earth1 of 10
- Air3 of 10
- Water2 of 10
Modalities
- Cardinal3 of 10
- Fixed3 of 10
- Mutable4 of 10
Counted across the ten planets by sign: Fire leads this chart.
Sia’s Chiron, Ceres, Eros, Hygiea and Lilith
Four minor bodies and the mean lunar apogee, placed in the same tropical zodiac as the planets above. None of these feed the chart signature, the rarity score or any ranking on this site: they are listed for readers who use them. Chiron, Ceres, Eros and Hygiea positions come from JPL Horizons; Black Moon Lilith is the mean apogee, the point most published Lilith tables use. The readings are the modern tradition’s, not AsterNym’s. Without a birth time the degree is the noon value and the day's movement is shown alongside it.
⚷ Chiron ℞Aries 23°44′ (moves 0.02° over the day)
centaur (2060) · the wound and what is learnt from it
Chiron in Aries is read as a sore spot around asserting oneself: Sia may have learnt early that going first costs something, and built a way of leading that does not need permission.
⚳ Ceres ℞Gemini 4°40′ (moves 0.20° over the day)
dwarf planet (1) · how a person nurtures and wants to be nurtured
Ceres in Gemini is read as nurture through talk and attention. The tradition has Sia feeding people with information and feeling fed by conversation.
♡ ErosCapricorn 21°01′ (moves 0.58° over the day)
near-Earth asteroid (433) · what draws them and how they desire
Eros in Capricorn is read as desire that respects competence and control. Sia is read as drawn to people who have built something.
⚕ Hygiea ℞Cancer 4°15′ (moves 0.20° over the day)
main-belt asteroid (10) · health, routine and what keeps them well
Hygiea in Cancer is read as health tied to home, mood and belonging. Sia is read as someone who does not thrive far from a base.
⚸ Black Moon LilithAries 5°11′ (moves 0.11° over the day)
mean lunar apogee · the part that refuses to be tamed
Black Moon Lilith in Aries is read as the refusal to be second. The modern reading has Sia carrying an anger that is cleaner than it looks and a need to act on it.
Aspects to the asteroids and Lilith
Major aspects only, at a tight 3° orb. The Moon is left out because its position moves 13° across an untimed day.
- Black Moon Lilith square Mercury 0.9°
- Hygiea trine Uranus 1.6°
- Chiron sextile Mars 1.7°
- Chiron trine Sun 1.8°
- Hygiea opposition Mercury 1.9°
- Ceres sextile Saturn 2.7°
Method: JPL Horizons heliocentric vectors, 1700–2100, cubic Hermite interpolation; geocentric, true ecliptic of date, tropical; geometric (no light-time or aberration); Lilith = mean lunar apogee (Chapront/Meeus mean perigee + 180°).
Sia’s dominant planets
Scored from rulerships, dispositors and aspect count. Without a birth time there is no Ascendant or house to score, and the Moon's sign is left out where it could change with the hour.
1. ♃ Jupiter7 pts
rules the Sun sign, Sagittarius; disposes Sun, Neptune; 2 major aspects
2. ♇ Pluto5 pts
disposes Venus, Uranus; 3 major aspects
3. ☿ Mercury3 pts
disposes Mars; 2 major aspects
A Jupiter-led chart is read as scale and optimism leading: Sia is read as reaching for the bigger version of any plan.
How the score is built
- Rules the Sun sign, Moon sign or Ascendant sign: 3 points each (traditional co-rulers of Scorpio, Aquarius and Pisces score half).
- Sits in a sign it rules: 2 points.
- Disposes another planet (that planet sits in a sign it rules): 1 point each.
- Angular: 2 points in the first or tenth house, 1 point in the fourth or seventh (timed births only).
- Every major aspect it makes: 1 point.
Dominance scoring is an AsterNym method. Other sites weight differently and can name a different leader for the same chart.
Configurations in Sia’s chart
Closed shapes among the ten planets under the site’s one aspect-orb policy. The Moon is excluded without a birth time, so a shape that needs it is not claimed.
No stellium, grand trine, T-square, grand cross, yod or kite closes among the planets that can be placed. That is the common case, not a gap.
Minor aspects
semi-sextile 30° (orb 2°), semi-square 45° (orb 2°), quintile 72° (orb 1.5°), sesquiquadrate 135° (orb 2°), biquintile 144° (orb 1.5°), quincunx 150° (orb 2.5°). Pairs already in a major aspect are not repeated. Moon excluded without a birth time.
- Sun biquintile Saturn 0.5°
- Venus semi-sextile Neptune 0.8°
- Mars sesquiquadrate Uranus 1.2°
- Venus semi-sextile Pluto 1.3°
- Venus quincunx Jupiter 2.0°
Houses need a birth time. None is documented for Sia, so no house placements are claimed for the planets or the minor bodies above.
More people like Sia
Other record producers
- Chris Ivery1968
- Johnny McDaid1976
- Trent Reznor1965
- Randy Spelling1978
- Whitney Houston1963
- Benny Blanco1988
Born in Australia
- Marco LeonardiItalian actor (born 1971)
- Tansy Rayner RobertsAustralian fantasy and crime fiction writer
- Terence TaoAustralian-American mathematician
- Scott DixonNew Zealand race car driver
- Portia de RossiAustralian-American actress
- Mark WebberAustralian professional racing driver
More charts like Sia’s
Fellow Sagittarius suns
- Hunter HenryAmerican football player
- Robert SpillaneAmerican football linebacker
- Gunner OlszewskiAmerican football player
Born in Rabbit years
- Jean StaffordAmerican author
- Henry JamesAmerican biographer
- James WrightAmerican poet, born 1927
Also born on December 18
- Steven Spielberg1946
- Brad Pitt1963
- Christina Aguilera1980
- Katie Holmes1978
- DMX1970
- Ashley Benson1989
Fellow Yang Earth day masters
- Douglas A. BlackmonAmerican journalist
- E. R. ShippAmerican journalist
- Mark E. Neely, Jr.American historian (born 1944)
Other Sagittarius Rabbit charts
- Aaron CarterAmerican pop singer, actor and songwriter
- Kat DeLunaAmerican singer
- Ronan FarrowAmerican journalist
- Evelyn LozadaAmerican television personality
Other Steadfast Seekers
- Måns ZelmerlöwSwedish singer and television presenter
- Nancy PelosiAmerican politician (born 1940)
- Justine BatemanAmerican actress, writer, and producer
- Larry BirkheadAmerican photographer
Famous people with Life Path 7
- Tyson BagentAmerican football player
- Tory TaylorAustralian gridiron football player (born 1997)
- Zaire FranklinAmerican football linebacker (born 1996)
From the journal: The Lo Shu square: the oldest magic square there is · What if you don't know your birth time?
Sia’s cards
Every card is computed from December 18, 1975, none chosen. Tap one to flip it.
♃ Ruled by Jupiter
Tin Sn
Tap to flip
The working: BaZi pillarsshow
BaZi pillars
Day Master: yang Earth.
Year
乙
yin Wood
卯
Rabbit
Wood
roots & early life
Month
戊
yang Earth
子
Rat
Water
work & drive
Day
day master
戊
yang Earth
戌
Dog
Earth
you & partnership
No birth time is on public record for Sia, so this chart has three pillars rather than four. The hour pillar, the rising sign and the birth-sky star all need a time, and we would rather leave them out than invent one.
Where this data comes from
Sia’s birth date and birthplace come from Wikidata Q181484, released under CC0, as do the occupations, works, teams and awards in the biography above. No documented birth time is available, so this chart is rated X on the Rodden scale, the astrological convention for how well evidenced a birth time is. Time-dependent results use a clearly labelled reference time and should not be read as their exact birth chart. Entries are matched to Wikidata by entity id rather than by name, kept only at day precision, and dropped where sources disagree on the date.
Portrait by (Kirk Stauffer), CC BY-SA 3.0, via Wikimedia Commons.
The same Sia at Wikipedia, siamusic.net, IMDb, Instagram, X, TikTok, YouTube and MusicBrainz.
Roster last reviewed September 10, 2026. Every entry is checked against its Wikidata record; where a person shares a name with someone else, the entity id is what settles which of them this is. What we will not tell you sets out the claims this site refuses to make.
These are traditional interpretations, not facts or predictions. AsterNym is not affiliated with or endorsed by Sia.
Quick answers about Sia’s chart
- How old is Sia?
- Sia is 50 years old, born December 18, 1975 in Adelaide, Australia.
- What zodiac sign is Sia?
- Sia is a Sagittarius: born December 18, 1975, which puts the Sun in Sagittarius for the whole of that day. That is the Western star sign. In the Chinese zodiac they are a Wood Rabbit.
- What is Sia's Chinese zodiac animal?
- The Rabbit, with the Wood element, from the Chinese lunar year of the December 18, 1975 birth.
- What time was Sia born?
- No reliably documented birth time is public, so AsterNym does not calculate an Ascendant. This chart uses date-only positions: the wheel shows a reference solar chart (the Sun's sign as house 1), and the Ascendant is left uncomputed instead of guessed from an unverified time.
- What is Sia's Life Path number?
- Life Path 7, calculated in numerology from the December 18, 1975 birth date.
- What is Sia's Chiron sign?
- Chiron in Aries at 23°. Position from JPL Horizons for the December 18, 1975 birth date.
- Where is Sia's Black Moon Lilith?
- Mean Black Moon Lilith in Aries at 5°. This is the mean lunar apogee; the osculating Lilith some tables use can sit up to 30° away.
- What is Sia's dominant planet?
- Jupiter, on AsterNym's dominance score (7 points: rules the Sun sign, Sagittarius; disposes Sun, Neptune; 2 major aspects). Pluto is second and Mercury third. Other sites weight rulerships and aspects differently and can name a different leader.
