Free Birth Chart Calculator
Enter your birth details to see your real natal chart — every planet, sign, and house, calculated from actual astronomical data. The exact positions of the sky the moment you were born.
That's all we need — your full planetary chart is computed from your date alone.
Optional — add your exact time & city to also unlock your Rising sign & houses.
What is a birth chart?
Your birth chart (or natal chart) is a snapshot of the sky at the exact moment and place you were born. It maps where the Sun, Moon, and planets sat along the zodiac, plus the Ascendant (Rising sign) and the twelve houses. Astrotrue computes it from established astronomical ephemeris data — the same real planetary positions any observatory would give — so identical birth details always produce the identical chart.
Why your birth time matters
The planets move slowly, so your birth date and place fix most of your chart. But the Ascendant and house placements shift about one degree every four minutes, so they need your exact birth time. If you don't know it, we still show your planetary placements and simply leave the time-sensitive parts out — we never invent precision we don't have.
Astrotrue is for self-reflection and entertainment. Chart math is real astronomy; readings are AI-written and personal to your placements.