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✦ Astrological compatibility ✦

Free Couples Synastry

Synastry compares two birth charts to see how two people relate. Enter both people's birth details and discover your compatibility in love, passion, emotions, and communication.

Person 1
Person 2

Calculations are done on your own device. We don't store your data.

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By Roberto Rodriguez · Updated

What is synastry?

It's the astrological technique that overlays two people's natal charts and studies the angles (aspects) between one person's planets and the other's. It goes far beyond sign compatibility: two people with “incompatible” signs can have a Moon and a Venus in perfect harmony.

What does each area look at?

How is the percentage calculated?

It's a symbolic index: each area starts at 50, adds points for harmonious aspects (trines, sextiles, and conjunctions) and subtracts for tense ones (squares and oppositions), more so the closer the aspect is to exact. In passion, tension counts in your favor, because it creates sparks.

Frequently asked questions

Do I need both people's birth times?

It's better, because that way the rising signs are included. If you don't know it, check “I don't know my birth time” and it will still be calculated using the planets.

Does a low percentage mean the relationship won't work?

No. It shows where there's more work to do. Many couples with tense aspects learn a lot together.

Does it work for friendships or family?

Yes. Synastry can be used with any relationship; just read the emotion and communication areas more closely.

Astronomical calculation with Astronomy Engine, checked against Swiss Ephemeris. City search: Open-Meteo.

Portal Místico readings are symbolic and intended for entertainment and personal reflection. They are not a substitute for professional advice.

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