Relationship tool

Synastry Chart Calculator

A closer compatibility read that shows cross-chart aspects and what they look like in practice.

Runs in your browserPrivate by default

FocusRelationship patterns through chart comparison.

Next stepLove Compatibility Calculator

Get the result first, then open the linked pages when you want more context.

Overview

Synastry is most useful when it stays concrete.

Focus on placements, major aspects, emotional tone, and the places where friction shows up.

01How should I use "Synastry Chart Calculator"?

Start with the tool result, then open the related pages below to understand the symbols, limits, and next step.

02Do I need an account for this tool?

No. The core tool works in the browser. If a result is saved or shared through a link, treat any data in the page URL carefully.

03Is the result a final prediction?

No. It is calculation and interpretation support for reflection, not medical, legal, financial, or psychological advice.

Compare two charts through Sun, Moon, Venus, and Mars placements to read chemistry, emotional rhythm, and tension points.

Enter birth date, time, timezone, and location details to generate an in-browser natal chart with placements, aspects, houses, and a visual wheel.