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Full natal chart wheel
Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, lunar nodes, Chiron, Lilith, and the four major asteroids.
Free chart
Free Natal Chart
Swiss Ephemeris precision, chart-grounded AI reading, no credit card. Get a real birth chart in under a minute.
✦ Swiss Ephemeris✦ No credit card✦ Arc-second accuracy✦ ~60 seconds
What you get, free
Five tools wired into your real chart, not your sun sign.
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Twelve houses
Placidus by default, computed from your latitude and local sidereal time.
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Aspects with exact orbs
Conjunctions, sextiles, squares, trines, oppositions — every angle measured to arc-seconds.
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Six-sphere snapshot
Self, Heart, Body, Matter, Roots, Mind — derived from your real chart factors.
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Starter AI reading
Grounded in those exact placements, with citations to the chart factor each insight comes from.
Why this chart is different from generic horoscopes
Most free online charts run on simplified or outdated tables. Most AI horoscopes never see the chart at all — they generate text from your sun sign and hope it fits. NatalChart.AI does both right:
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The chart is computed by the Swiss Ephemeris, built on NASA JPL’s DE431.
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The reading is constrained to your real placements via Chart-Locked AI Reading.
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It runs in your browser, in any modern device — no install, no plugin.
How it works
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You enter
Your date, time and place of birth. City search resolves the location to coordinates.
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We resolve the timezone
Using the IANA Time Zone Database, including historical DST and offset changes.
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Swiss Ephemeris computes
Every body's longitude, every house cusp, every aspect with its orb.
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The AI explains
Only the placements that actually appear in your chart — no inventions.
What if I don’t know my birth time?
You can still get a meaningful chart. Planetary aspects and sphere scores are usually robust even with imprecise birth time. The Ascendant, Midheaven and house cusps are time-sensitive and will be flagged as such in the reading. See Unknown Birth Time Natal Chart for the full picture.
What happens after the free chart
Free includes the chart and a starter AI reading. If you want to ask follow-up questions, dive deeper into specific spheres, run synastry against another person’s chart, or look at transits and Solar Returns, you can upgrade. There’s no time pressure — the free chart stays in your account.
Frequently asked questions
Is the natal chart really free?
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Yes — the chart calculation, the visual wheel, and a starter AI reading are free. You only pay if you want more daily AI messages, deeper sphere analyses, locations or synastry. There is no credit card required to get the chart.
What do I need to generate my chart?
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Date of birth, birth time (as exact as you have it), and birthplace. NatalChart.AI resolves the city to coordinates, looks up the historical timezone in the IANA Time Zone Database, and converts to UTC before computing the chart with Swiss Ephemeris.
What if I don't know my exact birth time?
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You can still generate a chart — NatalChart.AI uses noon as a fallback and clearly marks which factors depend on the exact time (Ascendant, Midheaven, house cusps). Planetary placements and aspects remain reliable even with imprecise time.
How accurate is the calculation?
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Planet positions are accurate to arc-seconds — well below the orb threshold any astrologer would use. The Swiss Ephemeris is built on NASA JPL's DE431 ephemeris and is the same calculation layer used by astro.com and TimePassages.
Will I see invented placements?
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No. Every placement, house cusp and aspect in your chart is computed from your birth data; the AI reading is constrained to only explain factors that actually appear in the calculation. See Chart-Locked AI Reading for how the constraint works.
Is my birth data stored?
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Your chart is saved to your account so you can come back to it. You can delete it at any time from settings. We never share birth data with third parties.
Ready to see your real chart?
Generate my free chart