Zodiac Compatibility Chart

Pick any two signs for an instant, calculated compatibility score across love, communication, trust, emotions, and values — with the astrology behind every number.

90°Square
63%Strong Match
  • Love & Attraction79%
  • Communication51%
  • Trust & Commitment61%
  • Emotional Connection61%
  • Shared Values57%
Score drivers

Square · FireWater · FixedFixed

Every Sign Match at a Glance

All 144 pairings, scored and color-coded. Click any cell for the full reading.

Soulmates 80+Strong 60–79Workable 40–59Challenging under 40

What Is Zodiac Compatibility?

Zodiac compatibility looks at how two sun signs naturally relate — where they spark, where they clash, and how easily they understand each other. It is one of the oldest and most popular ways to make sense of a connection, because your sun sign captures something real about your core drive, ego, and the way you move through the world. When you put two of those drives side by side, patterns emerge: some pairs feel effortless, others feel electric, and a few feel like hard, rewarding work. This chart maps all 144 of those pairings so you can see, at a glance, what the stars say about any two signs.

How We Calculate Zodiac Compatibility

Most compatibility sites hand-write their scores or pull a vague number out of thin air. ChartNova calculates them. Every percentage here is derived from four real astrological factors, the same ones a working astrologer weighs.

1

The aspect

the angle between the two signs around the zodiac — conjunction (same sign), sextile and trine (easy, harmonious), square and opposition (charged, growth-forcing). This is the single biggest driver of how two signs feel together.

2

The elements

fire, earth, air, and water. Same-element pairs share a language; complementary elements (fire with air, earth with water) fuel each other; clashing elements have the most to learn from one another.

3

The modality

cardinal, fixed, or mutable — how each sign initiates, sustains, and adapts. Two fixed signs are loyal but stubborn; mixed modalities tend to cover each other's gaps.

4

The polarity

masculine/yang (fire, air) or feminine/yin (earth, water), which shapes how naturally two signs attune or attract.

Because the score is built from these factors rather than asserted, we can show you the exact reasoning behind every dimension — no fortune-cookie guessing, just the geometry of the chart made readable.

How to Read the Compatibility Grid

Find one sign along the top and the other down the side; the cell where they meet shows their overall compatibility score. The deeper the violet, the higher the score — gold-ringed cells (80%+) are the standout matches, while the palest cells are the pairings that take the most work. Click any cell to open the full reading, with separate scores for love, communication, trust, emotional connection, and shared values, plus where the two signs click and clash.

Which Zodiac Signs Are Most Compatible?

The most naturally harmonious matches are usually trines — signs four apart in the same element, like two fire signs or two water signs — which flow together with little friction. Complementary pairings (a fire sign with an air sign, or an earth sign with a water sign) come a close second, balancing each other's strengths. The famous opposite-sign pairings, six signs apart, generate the strongest magnetic attraction of all: each holds exactly what the other lacks. The trickiest matches tend to be squares (three signs apart) and quincunxes (five apart), where the signs want different things at different speeds — though plenty of lasting couples are built on exactly that tension.

Do Opposite Signs Really Attract?

Often, yes. The six opposite-sign pairs — Aries–Libra, Taurus–Scorpio, Gemini–Sagittarius, Cancer–Capricorn, Leo–Aquarius, and Virgo–Pisces — sit directly across the zodiac from each other. Each sign embodies the qualities its opposite is still learning, which creates a powerful sense of completion and a strong physical pull. The lifelong work in these matches is balance: learning to meet in the middle instead of swinging between two extremes. When they manage it, opposite-sign couples are some of the most enduring in astrology.

Sun-Sign Compatibility vs Full Synastry

Sun-sign compatibility is a powerful first read, but your sun sign is only one placement out of dozens. Two people's Moon signs shape how they feel and nurture, their Venus signs shape how they love, and their Mars signs shape desire and conflict — and any of those can override the sun-sign story. For the complete picture, you need both full birth charts compared side by side, which is exactly what a synastry reading does.

Zodiac Compatibility FAQ

How is zodiac compatibility calculated?
Every score on ChartNova is computed from real astrology — the angle between the two signs (their aspect), their element relationship, modality, and polarity. Unlike most sites, our percentages are calculated, not hand-written, and we show you the factors behind each one.
What are the most compatible zodiac signs?
The smoothest matches are usually same-element trines (like two fire signs) and complementary pairings (fire with air, earth with water). Opposite signs create the most magnetic attraction. Pick any two signs above to see their exact calculated score.
Is sun-sign compatibility accurate?
Sun-sign compatibility is a strong starting point and explains a lot about a connection, but it is only one layer. For the full picture you need both birth charts compared — that is what a synastry reading does.
Do opposite signs really attract?
Often, yes. Opposite signs sit across the zodiac from each other and each holds the qualities the other lacks, which creates strong magnetic pull — balanced by a lifelong push-and-pull dynamic.
Can two incompatible signs make it work?
Absolutely. A lower compatibility score means a relationship asks for more conscious effort and communication, not that it is doomed. Some of the strongest couples are challenging matches who did the work.
Is the compatibility chart free?
Yes — all 144 sign-pair scores and readings are completely free, with no signup. A full personalized synastry reading from both birth charts is the only Pro feature.