Arc-second accurate chart
Every planet, house cusp, and aspect computed from Swiss Ephemeris — the same engine professional astrologers use. Not an approximation.
Swiss Ephemeris precision under the hood. AI narration that names the actual aspects — not generic archetypes.
Every planet, house cusp, and aspect computed from Swiss Ephemeris — the same engine professional astrologers use. Not an approximation.
Self, Heart, Body, Matter, Roots, Mind. Each sphere scored from your real placements, each reading cites the aspect that drives it.
Live transits to your chart. Solar Return for any year. Electional scoring across 7, 14, or 30 days to find the best moment for what you're planning.
Send a link. They build their chart — it's free. Both of you get synastry across the six spheres, anchored in real inter-chart aspects.
English, Ukrainian, Russian, Spanish, Portuguese, Hindi, Chinese, Korean — readings adapt to the language you write in.
Build the chart, chat for free. Sign in only when you want to save it or invite someone — or when you want unlimited chat and premium tools.
Date, time (to the minute if you know it), and city. Unknown time is fine — we'll use noon and say so.
Swiss Ephemeris runs server-side. You see your wheel, Sun / Moon / Rising, and six sphere scores within seconds.
Tap a sphere or type a question. Every reading cites real placements and aspects from your chart — no invented archetypes.
A natal chart is a map of the sky at the exact moment and place you were born. It shows where every planet sat relative to the horizon — Sun, Moon, Mercury, Venus, Mars, and the outer planets — plus the twelve houses that divide life into domains (self, relationships, career, and so on). Astrologers read the interplay between planets, signs, and houses as a language for self-reflection.
For the Sun, Moon, and planetary aspects, no — those only shift a few degrees across 24 hours. For your Rising sign, Midheaven, and house placements, yes — those rotate a full 360° every day, so without the time you can't place planets in houses. If you don't know the time, we fall back to noon and flag which parts of the reading depend on it.
Every position is computed from Swiss Ephemeris, the industry-standard astronomical library used by professional astrologers and academic astronomy tools. Planetary positions are accurate to within one arc-second — effectively perfect for astrological purposes. There is no approximation or cached data.
Yes. Building your chart is free. Reading the six spheres is free. Asking questions about your chart is free (with a generous daily limit for anonymous users). Premium features — unlimited chat, compatibility with saved friends, relocation astrology, year-ahead solar return, electional timing — unlock with a subscription, not a one-time payment.
No. Astrology is a language for self-reflection — specific, useful, not deterministic. It does not forecast events, diagnose conditions, or substitute for legal, medical, or financial advice. It names patterns and trade-offs in a way that helps you notice what you're already choosing. Every reading in NatalChart.AI is framed this way.
No. Every claim about a placement, aspect, or score comes from the Swiss Ephemeris calculation attached to your chart. The AI narrates that data — it never invents placements it doesn't have. If a value isn't in your chart, it says so rather than guessing.
Yes. Each reading (today, year ahead, compatibility, timing, location) has a Share button that creates a public link like natalchart.ai/r/<id>. The page shows the same card the AI generated, with a "build your own chart" CTA for whoever you send it to.
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