12andus Astrology delivers professional-grade astrological insights powered by precise calculations and personalized charts analysis.
What You Can Explore
Personality & Psychological Insights
Discover your strengths, challenges, emotional patterns, and inner motivations based on your unique birth chart. Understand how you think, love, work, and
make decisions through the lens of your planetary placements.
Timing Guidance & Forecasts
Receive personalized transit forecasts for up to one year ahead, revealing upcoming periods of growth, change, opportunity, or challenge. See when
key planetary influences begin and end.
Relationship Compatibility
Explore the dynamics between you and anyone else through synastry analysis (how your charts interact) and composite charts (the unique energy your
relationship creates together). For romantic relationships, understand the chemistry of attraction, emotional compatibility, communication styles, intimacy patterns, and long-term potential. The same depth of analysis applies to any relationship — family bonds, friendships, business partnerships, or professional collaborations. See where you naturally harmonize, where friction may arise, and how to navigate differences with greater awareness.
Relationship Timing
Go beyond static compatibility — see how transiting planets activate your composite chart, revealing the best times for important relationship milestones,
conversations, or decisions.
Key Features
- Private Birth Data Storage — Securely save up to 50 birth charts under your account for instant access to readings without re-entering data
- Birth Charts — Complete natal analysis including planets, houses, aspects, and retrograde positions
- Transit Charts — Forecasts from 1 day to 365 days showing active planetary influences
- Relationship Charts — Synastry and composite analysis between any two saved people
- Relationship Forecasts — Transits to composite charts revealing relationship timing
Unmatched Precision
12andus calculations consider the exact planetary positions based on your specific birth date, time, and place. When birth time is unknown, the system adapts intelligently, providing insights without house-dependent data.
Holistic Readings
Unlike fragmented interpretations that list placements one by one, 12andus synthesizes your chart holistically — weaving together planetary positions, aspects, and houses into a unified narrative that reflects how these energies actually work together in your life.