Compatibility chart for zodiac signs
Compare any of the 144 zodiac sign pairs, then add birth dates, cities, and optional birth times for deeper AI synastry across love, friendship, chemistry, emotional fit, and long-term potential.
How does a compatibility chart for zodiac signs work?
A compatibility chart for zodiac signs compares two signs first, then adds full birth-chart synastry when you enter birth details. The quick zodiac chart shows basic attraction patterns; the deeper chart compares Venus, Mars, Moon, Mercury, Saturn, and house overlays for chemistry, communication, emotional safety, and long-term potential.
- Use the zodiac sign chart first, then add birth dates and cities for full synastry.
- Venus-Mars aspects show chemistry; Moon contacts show emotional safety.
- Saturn contacts reveal whether attraction can become long-term commitment.
Check all 144 zodiac sign compatibility pairs
Pick your sign to start the zodiac compatibility chart.
Go deeper after the zodiac compatibility chart
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Frequently asked questions
What is an astrology compatibility chart?
An astrology compatibility chart compares two people’s birth charts to show relationship patterns. It looks beyond zodiac signs into Venus, Mars, Moon, Mercury, Saturn, and house overlays — the placements that shape attraction, communication, emotional safety, and long-term potential.
Is this based on birth charts or zodiac signs?
Both. You can start with zodiac-sign compatibility for a quick overview, but the most useful results come from birth-chart synastry. Birth dates and cities let the calculator compare real planetary placements; birth times add Moon, rising-sign, and house precision.
What birth details do I need for a compatibility chart?
You need both birth dates and birth cities. Birth times are optional, but they make the Moon, ascendant, and house overlays more accurate. If you do not know a time, the calculator can still compare Sun, Venus, Mars, Mercury, and many other placements.
Can I use this for romantic and friendship compatibility?
Yes. The same compatibility chart can show romantic chemistry, friendship flow, emotional fit, communication style, and long-term tension points. Venus and Mars often describe attraction, while Moon and Mercury contacts are useful for friendship and everyday emotional rhythm.
How is this different from basic zodiac sign compatibility?
Basic zodiac compatibility compares only two Sun signs. A birth-chart compatibility reading compares the full charts, so an apparently difficult zodiac match can still have strong chemistry, and an easy Sun-sign match can still have communication or commitment challenges.
What's free and what costs money?
The compatibility score, sign-pair breakdown, and core inter-aspects are 100% free. The premium tier in the Soulwise app adds: full house overlays, transit-to-synastry forecasts, AI Q&A about the relationship, and a downloadable PDF. You can use the free tier indefinitely.
Ready for the deeper read?
Soulwise gives you the full chart-by-chart breakdown. Zoda lets you talk to an AI astrologer about your relationship in real time.