78 pairs · free
Zodiac sign compatibility: all 78 pairs explained
Find your sign, then your partner's under it. Each of the 78 pages takes one pair and shows what follows from the signs themselves: their elements and modalities, the angle between them on the zodiac circle and the planets that rule them. From that you can see where the two of you get along without effort and where you tend to rub. Every pair is listed under both signs, so you can start from either.
These pages compare Sun signs only. To see two people as a whole — the Moon, Venus, Mars, the houses — enter both birth dates in synastry. It's free too.