Calculate Birth Chart: What You Need and What It Shows
Learn how to calculate a birth chart using date, time, and place of birth, plus what sun, moon, rising sign, and houses mean.
Searching calculate birth chart usually means you want an astrology chart, also called a natal chart. A birth chart maps the positions of planets and key points for a specific birth date, time, and location.
Use our Birth Chart Calculator to get started.
What Information Do You Need?
A birth chart usually needs:
- Birth date
- Birth time
- Birth place
Date alone can show some placements, but time and place are important for rising sign and houses.
What a Birth Chart Shows
Common chart elements include:
- Sun sign
- Moon sign
- Rising sign
- Planet placements
- Houses
- Aspects between planets
Different astrology traditions may interpret these differently.
Why Birth Time Matters
The rising sign changes roughly every couple of hours. Houses also depend on time and location. If the birth time is missing or approximate, rising sign and house placements may be uncertain.
Birth Chart vs Horoscope
A horoscope is usually a general interpretation for a sign. A birth chart is more specific because it uses your exact birth details.
The Bottom Line
To calculate a birth chart, use your birth date, exact time, and place. The more accurate the time, the more reliable the rising sign and house placements are within astrology systems.
Use the Birth Chart Calculator for entertainment and self-reflection.
How to Calculate: Step-by-Step Guide
Enter birth date
Use the exact day, month, and year of birth.
Add birth time
Use the most accurate birth time available, ideally from a birth certificate.
Add birth place
Birth city helps calculate time zone, houses, and rising sign.