Which zodiac signs are most compatible?

As a rule of thumb, signs of the same element harmonise (say, Leo and Aries), and the complementary pairs fire–air and earth–water get along well. But that is only the Sun level. Moon, Venus and Rising can overturn any rule of thumb — in both directions.

Which zodiac signs don’t match?

Astrology has no "don’t match" — only combinations with more translation work. Fire–water and air–earth count as demanding because the temperaments run differently. Yet exactly these pairs often report the strongest attraction.

How seriously should I take a sun-sign match?

As a quick check: quite — element and modality describe real temperament differences you will recognise in relationships. As a verdict on a specific relationship: no. That takes the whole chart, calculated from the date of birth, ideally with a time.

Why do the same two signs always get the same score here?

Because the score is calculated, not rolled: element relation, modality and how the signs sit relative to each other produce a fixed number. More honest than a random generator — and the read explains the derivation.

What is the difference to the full compatibility chart?

The sign check compares only your Suns. The full compatibility chart overlays your complete birth charts — Moon, Venus, Mars, Mercury and Rising included — and interprets every single link. That one needs your dates of birth.

The Astro AcademyBy Theresa

Learn astrology & tarot in 30 days — for you, friends & familyTake the 1-minute quiz and get your structured learning path. Understand how astrology and tarot work, step by step — no prior knowledge needed.Start the quiz

Astrology · Compatibility

Zodiac sign compatibility
calculator — pick two signs, see the result

Which zodiac signs match? Pick your two signs and get an instant harmony score with an honest read — derived from element and modality, not from a random generator. No birth data needed at all.

No birth data needed — pick two signs, see the result instantly.

How it works

Two clicks to your result

Pick two zodiac signs
Your sign and theirs — no birth data, no sign-up.
See the result instantly
Harmony score, element chemistry and modality dynamics appear right on the page.
Go deeper if you want
With your dates of birth, the full compatibility chart also compares Moon, Venus, Mars and the Rising sign.

Zodiac compatibility — frequently asked questions

Which zodiac signs are most compatible?: As a rule of thumb, signs of the same element harmonise (say, Leo and Aries), and the complementary pairs fire–air and earth–water get along well. But that is only the Sun level. Moon, Venus and Rising can overturn any rule of thumb — in both directions.
Which zodiac signs don’t match?: Astrology has no "don’t match" — only combinations with more translation work. Fire–water and air–earth count as demanding because the temperaments run differently. Yet exactly these pairs often report the strongest attraction.
How seriously should I take a sun-sign match?: As a quick check: quite — element and modality describe real temperament differences you will recognise in relationships. As a verdict on a specific relationship: no. That takes the whole chart, calculated from the date of birth, ideally with a time.
Why do the same two signs always get the same score here?: Because the score is calculated, not rolled: element relation, modality and how the signs sit relative to each other produce a fixed number. More honest than a random generator — and the read explains the derivation.
What is the difference to the full compatibility chart?: The sign check compares only your Suns. The full compatibility chart overlays your complete birth charts — Moon, Venus, Mars, Mercury and Rising included — and interprets every single link. That one needs your dates of birth.

What you get

More than a percentage

Element chemistry
Fire, earth, air, water: the element of your signs sets the base chemistry — whether you ignite, ground, lift each other, or first have to learn to translate.
Modality dynamics
Cardinal, fixed or mutable: modality shows how you approach things — who starts, who sustains, who adapts. It often explains everyday friction better than the element does.
A score you can retrace
The 0–100 harmony score is derived deterministically — the same two signs always produce the same result. And we explain why.
Honest about the limits
Your zodiac sign is only the Sun — one point of many. We tell you plainly what the quick check can do, and where the real comparison by date of birth sees more.