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Calculate your birth chart online

Free calculation by date, time, and place of birth.

Don’t know your exact birth time? That’s fine: we’ll still build your natal chart.

However, the Ascendant, the Midheaven, and the houses can only be calculated when the time of birth is known. Without it they will not be shown in the chart.

We do our own high-precision astronomical calculations: their accuracy matches the data professional software relies on. Tropical zodiac, Placidus houses, five major aspects. How we calculate

What you’ll get

  • A natal chart wheel with planets, signs, and houses
  • Interpretations of placements: the Sun, the Moon, and the planets in signs and houses
  • Aspects between planets
  • Free, with no sign-up
Is it free?

Yes, the natal chart calculation is free and requires no sign-up.

Do I need my exact birth time?

Ideally, yes: the time is needed for the houses and the Ascendant. Without it we’ll still build your chart, but it will be incomplete. More details on the page “What is a natal chart”.

More details on the natal chart page