Birth Chart Calculator
BirthChartWisdom.com

Birth Chart Calculator

Tropical zodiac · Placidus houses · 1900–2034
Name (optional)
Date of birth
Time of birth
24-hour clock, as recorded at birth. Houses need an accurate time.
Country
City/town, or nearest
Place not listed?
If the birth place is not listed, select the nearest city or town then go to Google Maps, search for the location, click on the map and a popup will show the exact latitude and longitude, which you can copy to the relevant fields here.
Birth place shown on chart
Fills in automatically when a city is chosen, but you can edit if you wish.
Latitude
Decimal degrees; south is negative.
Longitude
Decimal degrees; west is negative.
Time standard
The clock offset in force at the birth, including any daylight saving. Not sure? Go to the timeanddate.com time zone lookup and enter the birthplace in the search field. On the resulting page, find the UTC offset by selecting the appropriate date range in the ‘Time zone changes for:’ dropdown.

Planetary positions

House cusps (Placidus)

Aspects

Balance

Counts of the ten planets by element and mode.

Aspect grid

Calculated with the Astronomy Engine ephemeris; house cusps and planetary longitudes verified against the Swiss Ephemeris to within fractions of an arc minute. UK clock changes 1916–2034, including wartime Double Summer Time, follow the IANA time zone database.
Aspect orbs: conjunction, opposition and trine 8°; square and sextile 5°; inconjunct 3° - further limited by the orb cast by the bodies involved (Sun and Moon 8°; Mercury, Venus, Mars and Jupiter 5°; Saturn 4°; Chiron and Uranus 3°; Neptune and Pluto 2°; the nodes, Part of Fortune and angles cast no orb of their own).
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