Free Black Moon Lilith Sign Calculator

For the sign alone, no. Lilith moves slowly enough (about 40° per year) that your birth date is usually enough to place it in a sign unless you were born on a day it changed signs. For the house, yes: Lilith's house depends on your Ascendant, which requires an exact birth time and birth location.

Mean Lilith is the averaged position of the lunar apogee, smoothed over its natural wobble. True (or Osculating) Lilith is the instantaneous apogee at the exact moment of birth, before any averaging. Because the lunar orbit is perturbed by the Sun, True Lilith can differ from Mean by up to 30° in either direction. Most contemporary astrologers work with Mean; traditionalists who want the literal orbital geometry use True.

Different calculators use different Lilith variants without always telling you. Cafe Astrology uses Mean Lilith by default. Astro-Seek lets you pick. Some Vedic tools default to Sidereal Lilith, which shifts the position by roughly 24° (one sign earlier) in 2026. If two calculators show different signs, check which variant each one used; that is almost always the explanation.

Mean Black Moon Lilith moves about 40° per year, so it spends roughly nine months in each sign and changes signs once every nine months or so. If your date of birth falls within a day or two of an ingress, the calculator can still place it correctly when you provide a birth time. Without a time, the result reflects the sign Lilith was in at noon on your birth date.

Black Moon Lilith marks the Moon's apogee, the empty focus of its elliptical orbit and the farthest point of that orbit from Earth. The calculator finds that point for your exact birth moment, reads its zodiac longitude as a sign and degree, and with a birth time places it in a house. Mean Black Moon Lilith uses the smoothed orbit, which is what this tool reports alongside the Sidereal reading.

Everyone has a Black Moon Lilith point, because it is a position rather than an object you either carry or lack. Enter your birth details above and the tool returns its sign, degree, and house. With an exact birth time you also get the house, the life area where the placement tends to surface.

Black Moon Lilith completes its cycle in about 8.85 years, so it returns to its natal sign and degree around ages 9, 18, 27, 35, and 44. Practitioners read these windows as chapters when the placement's themes around autonomy and refusal tend to resurface. Treat them as timing prompts rather than fixed events.

Most astrologers and this calculator use Mean Black Moon Lilith, the standard apogee point, so it is the safe default. True (osculating) Lilith is the exact apogee and can sit up to a sign away. Dark Moon Lilith, the Waldemath point, and asteroid 1181 Lilith are entirely different objects that share the name. When a source does not say which it means, it is almost always Mean.