Composite Chart Calculator
A composite chart treats your relationship as its own person: every placement is the midpoint between yours and theirs. Two birthdays in, the relationship's chart out.
Your full romantic profile from your exact birth data: how you love, who fits you, and your timing windows. Free quiz, 60 seconds.
Start my free readingComposite vs synastry
Synastry compares two separate charts, how your planets touch theirs. A composite chart goes one step further: it computes the midpoint of each pair of planets and reads the result as the chart of the relationship itself. Couples often recognize their dynamic more clearly in the composite than in either individual chart, it describes who you become around each other.
What to look at first
The composite Sun is the relationship's purpose, the composite Moon is its emotional weather, and composite Venus is how affection moves between you. We use shortest-arc midpoints from real planetary positions, the standard method.