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.