01
Sun, Moon and Rising
Compare how you express yourself, what helps you feel secure and how other people first read you in dating, work and social settings.
Free Western astrology calculator
See the planets, rising sign
and twelve houses.
Calculate the chart before interpreting it. Enter the local birth time and city to apply historical time-zone and daylight-saving rules to the planets, Ascendant, Midheaven and houses.
Birth details
Enter the local date and time shown on the birth record. We apply the city's historical time zone and daylight saving rules.
Free · no account required · birth details are not saved0 / 5 complete
Next: choose a country
Location data: Countries States Cities Database (ODbL 1.0).
If clocks changed at that time, we will ask which occurrence matches the birth record.
Exact birth time unlocks the Ascendant, Midheaven and twelve houses. If time is unknown, the calculator keeps a date-only planetary chart instead of inventing angles.
How to use the calculation
What can a Western birth chart help you analyze?
Planetary positions are calculated first. Interpretation then asks where a pattern repeats in everyday life instead of treating one placement as a fixed personality or future.
02
The twelve houses
Houses locate a theme in a life area such as career, money, home or relationships. Exact birth time is required to calculate them.
03
Planetary aspects
Aspects show tensions and supports between needs—for example, wanting certainty while also wanting freedom in a choice.
04
Timing layers
Later transits can narrow periods of pressure or momentum, but they should be read as conditions to prepare for rather than guaranteed events.
Why Hongsimdang compares three systems
BaZi describes the overall structure and longer cycle. Zi Wei Dou Shu narrows the life area. Western astrology adds planetary tension and timing. When several views point to the same pattern, we translate it into practical language about messages, meetings, dating, money and choices.
Calculation scope
Birth chart calculator FAQ
What does this free birth chart calculator include?
It shows the Sun, Moon and eight planets by sign and degree. With a recorded birth time and city, it also calculates the Ascendant, Midheaven, Placidus houses and major natal aspects.
What happens if I do not know my birth time?
The calculator keeps a date-only planetary chart and withholds the Ascendant and houses rather than inventing them. The Moon can move noticeably during a day, so its exact degree is less certain.
Does the calculator handle daylight saving time?
Yes. Select the birth city and enter the local time from the birth record. Historical IANA time-zone rules are applied, including repeated and nonexistent daylight-saving times.
Is a birth chart a guaranteed prediction?
No. The astronomical positions are calculated, but their interpretation is symbolic and conditional. Use the chart for reflection rather than fixed outcomes.