Lilith Sign Calculator

Key Takeaways

  • Black Moon Lilith is the lunar apogee, the point of the Moon's orbit farthest from Earth, not a body.
  • Mean Lilith moves forward about one sign every 270 days, so a full cycle takes about 8.85 years.
  • This calculator uses mean Lilith and was tested against Swiss Ephemeris 2.10 across 300 random charts.

Updated

Birth date

What Is Black Moon Lilith?

Black Moon Lilith is not a planet, asteroid or star. It is the lunar apogee: the point in the Moon's orbit that lies farthest from Earth. Astrologers read it as the raw, untamed part of a person, the strand of you that resists shame, obedience and control.

Because it is a mathematical point rather than a physical object, Lilith carries a different flavour in a chart than a planet does. In astrology it is often placed where you feel most instinctive and least willing to negotiate, the place where you would rather be cast out than compromise. That can make it uncomfortable to look at, and also clarifying. Many people recognise the placement before they recognise anything else.

You may also meet the name Lilith attached to other points, such as the asteroid 1181 Lilith or the hypothetical Dark Moon. This page deals only with Black Moon Lilith, the lunar apogee, which is the version most astrology software and most natal chart readings mean.

How Is Your Lilith Sign Calculated?

The Lilith Sign Calculator finds your Lilith sign from your birth date, birth time and birthplace. It computes the mean lunar apogee for your exact moment of birth using the tropical zodiac, measured from the March equinox, and reports the sign and whole degree it fell in. Planet positions come from Astronomy Engine, an open-source MIT-licensed library that corrects for light-time, aberration, precession, nutation and Delta T; Lilith itself is computed by our own code.

How long Lilith stays in one sign (measured with our engine, 1900 to 2030)
MeasureValue
Typical stay (median)270 days (about 9 months)
Average stay269 days (about 9 months)
Longest stay270 days (about 9 months)
Sign stays counted176

Everything runs in your own browser, and no account or sign-up is needed. If you leave the birth time empty, the chart is calculated for noon, which barely affects Lilith: it moves about one degree every nine days, so a noon chart gives a Lilith degree close to the real one for most of the day you were born.

Mean Lilith Vs True Lilith: What Is The Difference?

Mean Lilith is the averaged position of the lunar apogee, a smooth, steadily forward-moving point. True Lilith, also called osculating Lilith, follows the actual apogee, which wobbles as the Sun's gravity pulls on the Moon's orbit. The two can differ by several degrees, and occasionally that difference spans a sign boundary, which is why two Lilith calculators can give you two different answers for the same birth data.

Neither version is wrong; they measure different definitions of the same orbit. This calculator uses mean Lilith, the version most printed ephemerides and most natal chart reports show. Programs also define the mean point in slightly different ways: against Swiss Ephemeris 2.10, the reference software most professional astrology programs use, ours differed by up to about 7 arcminutes, which is why the degree is shown rounded to the whole degree rather than to minutes.

What Does Each Lilith Sign Mean?

Each Lilith sign is read as a style of refusal: what you will not tame, and how you push back when asked to shrink. The twelve readings below give the short version for your placement. Astrologers describe Lilith as an understudy to your Venus and your Moon, the part that speaks when polite compromise has run out, so it tends to show itself most clearly in situations involving desire, autonomy or being told what a good person should want.

Lilith in each sign, as astrology reads it
SignElementMeaning In Astrology
AriesFireLilith in Aries is read as defiant independence and a refusal to wait for permission.
TaurusEarthLilith in Taurus is read as unapologetic appetite for pleasure, touch and material security.
GeminiAirLilith in Gemini is read as untamed curiosity and saying the forbidden thing out loud.
CancerWaterLilith in Cancer is read as fierce protection of privacy, home and the right to feel deeply.
LeoFireLilith in Leo is read as a bold need to be seen and admired without shrinking for anyone.
VirgoEarthLilith in Virgo is read as razor-sharp criticism of anything fake, starting with the self.
LibraAirLilith in Libra is read as refusal to keep the peace by abandoning your own needs.
ScorpioWaterLilith in Scorpio is read as intense, private desire that trusts no halfway intimacy.
SagittariusFireLilith in Sagittarius is read as a hunger for freedom, truth and beliefs nobody may police.
CapricornEarthLilith in Capricorn is read as ambition that answers to no one's approval or authority.
AquariusAirLilith in Aquarius is read as radical detachment from rules, labels and social convention.
PiscesWaterLilith in Pisces is read as dreamy dissolving of boundaries, shame and all fixed identities.

The sign describes how your Lilith behaves; the house it sits in, which your full natal chart shows, describes where in life it tends to surface. Reading the two together is more useful than the sign alone, because a Lilith in Aries in the seventh house plays out very differently from one in the twelfth.

Why Does Lilith Stay About 9 Months In A Sign?

Lilith stays roughly nine months in each sign because mean Lilith moves slowly and steadily forward, covering about one sign every 270 days and completing the full zodiac in about 8.85 years. Measured over the whole cycle, that is an average pace of about one degree every nine days.

The consequence is that everyone born within the same nine-month window shares a Lilith sign, much as whole generations share slow-moving Pluto or Neptune placements. Your Lilith in Scorpio does not describe a unique biography; it describes a shared raw spot that each person colours through house, aspects and the rest of the chart. Conjunctions to personal planets make it much more personal, which is why the full chart matters more than the Lilith sign on its own.

True Lilith moves less evenly because it follows the wobbling apogee, so its sign changes do not fall on such a clean schedule.

What Does Lilith Show In Your Birth Chart?

In a natal chart, astrologers read Lilith as the place where you are least domesticated. It is often described as the point of exile and return: where you were once made to feel wrong for wanting what you wanted, and where, as an adult, you feel most yourself when you stop apologising for it. Astrology treats it as a symbolic and reflective tool here, not a prediction of events.

In practice, people describe Lilith placements as areas of magnetic pull, sudden bluntness, or shame that flips into pride. Look at three things: the sign, which shows the style; the house, which shows the life area; and aspects, which show which planets Lilith converses with. A tight conjunction to your Sun or Venus, for example, within the 8-degree orb this site uses, tends to make the theme far more visible than a quiet, unaspected Lilith.

Lilith Sign Calculator FAQ

Is This Lilith Sign Calculator Free?

This Lilith sign calculator is completely free. You enter an optional first name, your birth date, birth time and birthplace, and your Lilith sign appears with no account, no sign-up and no payment. The site runs no advertising and no third-party trackers, and a deeper personal reading is planned but the calculator itself stays free.

Do I Need My Birth Time For Lilith?

Birth time matters little for Lilith. Mean Lilith moves about one degree every nine days, so a noon chart without a birth time still gives the correct sign for almost everyone. The birth time matters far more for your Ascendant, houses and Midheaven, which cannot be placed without it, and which you need to find your Lilith house.

How Accurate Is This Lilith Calculator?

Accuracy was tested in November 2026 against Swiss Ephemeris 2.10, the reference most professional astrology software uses, on 300 random charts from 1900 to 2030. Planets agreed within 19 arcseconds and house cusps within half an arcsecond. Mean Lilith differed by up to about 7 arcminutes because programs define the point slightly differently, so it is shown to the whole degree.

Why Do Lilith Calculators Give Different Signs?

Lilith calculators disagree for two measured reasons. First, some show mean Lilith and others show true, osculating Lilith, which follows the real wobbling apogee and can differ by several degrees, sometimes crossing a sign boundary. Second, programs define mean Lilith slightly differently, with gaps of a few arcminutes between them, enough to matter only right at a sign edge.

What Is The Difference Between Lilith And The North Node?

Lilith and the North Node are both calculated points, not bodies, but they track different things. Lilith is the lunar apogee, the farthest point of the Moon's orbit from Earth, read as your untamed edge. The North Node is where the Moon's orbit crosses the ecliptic, read in astrology as a direction of growth. They sit in different places in your chart.

Can ChatGPT Tell Me My Lilith Sign?

ChatGPT and other large language models can explain placements you give them, but they are not ephemeris software. Asked to work out positions from a birth date alone, they can state wrong signs or degrees. Calculate the chart first here, then ask about the listed placements, and you avoid that failure mode.

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