Zodiac Sign Compatibility: All 78 Pairings

Every sign has an element and a quality, and that is where compatibility starts. The element tells you what a sign runs on: fire on passion and action, earth on steadiness and practical sense, air on ideas and conversation, water on feeling and intuition.

A sign's quality (cardinal, fixed or mutable) tells you how it moves. Cardinal signs start things, fixed signs keep them going, mutable signs adjust. Two cardinal signs build momentum fast and then argue over who is in charge. Two fixed signs are loyal and equally stubborn. A cardinal sign with a mutable one often splits the work without much fuss. Element and quality together give you the frame for any compatibility reading.

Fire with air is the classic spark, and it earns some of the top scores below. Air fans the flame, fire puts air's ideas into motion, and neither sign sits still for long. Earth with water scores just as high and builds a steadier bond, with earth giving water shape and security and water giving earth feeling and depth. Two signs of the same element understand each other instinctively, which is both the appeal and the trap: neither of you spots the blind spot you share. Fire with water and earth with air look like the least likely pairs, and they score lowest here, yet when they do work the pull can be strong, precisely because the two partners are so different.

Every pairing below appears under both signs, so you can start from either one. None of it is destiny. Any combination can thrive or fall apart; the elements only show where things come easily and where the two of you will have to work.

Sun signs are a good place to begin, but the Sun is only one planet in each chart. The fuller picture is synastry, the aspects between two complete birth charts: your Moon contacting their Venus, your Mars falling in their houses, the trines that smooth things over and the squares that create friction. Two people whose signs supposedly clash can fit beautifully when the rest of their charts agree, and a "perfect" pair can struggle when they don't.

So treat the scores below as a first impression. To see how the two of you actually fit, calculate both birth charts and let Sigastra read the synastry between them.