Aries Compatibility
All 12 matches ranked by a computed synastry score — not by tradition.
Astrology entertainment. Aries is a cardinal fire sign ruled by Mars, and it moves first and asks later. How the scores are computed.
All 12 Aries matches, ranked
Every other compatibility site ranks Aries's matches by tradition — same element good, opposite sign difficult. We rank them by running real birth charts through a synastry engine and averaging the result, so the order below is computed rather than inherited. The index is relative: 100 is the strongest of all 78 sign combinations.
| # | Match | Index | Harmonious | Challenging | Element |
|---|---|---|---|---|---|
| 1 | Aries & Sagittarius | 82 | 15.1 | 7.4 | Fire |
| 2 | Aries & Aries | 75 | 14.7 | 7.1 | Fire |
| 3 | Aries & Gemini | 73 | 15.4 | 7.2 | Air |
| 4 | Aries & Aquarius | 68 | 14.2 | 7.9 | Air |
| 5 | Aries & Leo | 46 | 13.8 | 9.7 | Fire |
| 6 | Aries & Pisces | 44 | 15.4 | 6.9 | Water |
| 7 | Aries & Taurus | 37 | 14.6 | 8.2 | Earth |
| 8 | Aries & Virgo | 33 | 13.7 | 7.9 | Earth |
| 9 | Aries & Scorpio | 21 | 13.2 | 8.8 | Water |
| 10 | Aries & Cancer | 18 | 13.9 | 10.0 | Water |
| 11 | Aries & Capricorn | 8 | 13.5 | 8.9 | Earth |
| 12 | Aries & Libra | 1 | 13.0 | 10.3 | Air |
Rows without a link are pairings we have computed but not yet published as their own page — they are being released in stages rather than all at once.
Aries's top three matches, explained
1. Aries and Sagittarius — 82/100
Two fire signs run the same engine: fast, direct, allergic to stalling. Momentum is never the problem; pacing is.
Across the sampled chart pairings this combination averages 15.1 harmonious and 7.4 challenging contacts, with friction carrying about 25% of the total contact weight. The contact that recurs most is Sun trine Sun, present in 100% of pairings — your sun is trine their sun — similar life energy and identity. The recurring friction is Moon square Moon at 22%.
Full Aries and Sagittarius breakdown →
2. Aries and Aries — 75/100
Two fire signs run the same engine: fast, direct, allergic to stalling. Momentum is never the problem; pacing is.
Across the sampled chart pairings this combination averages 14.7 harmonious and 7.1 challenging contacts, with friction carrying about 27% of the total contact weight. The contact that recurs most is Sun conjunct Sun, present in 100% of pairings — your sun is conjunct their sun — similar life energy and identity. The recurring friction is Moon square Moon at 20%.
3. Aries and Gemini — 73/100
Air feeds fire, and that is as literal as it sounds. Ideas turn into action quickly here, which is exhilarating and occasionally means nobody applies the brakes.
Across the sampled chart pairings this combination averages 15.4 harmonious and 7.2 challenging contacts, with friction carrying about 27% of the total contact weight. The contact that recurs most is Sun sextile Sun, present in 100% of pairings — your sun is sextile their sun — similar life energy and identity. The recurring friction is Sun square Jupiter at 33%.
Who is a Aries's soulmate?
On the computed ranking above, Aries scores highest with Sagittarius, Aries, Gemini — and lowest with Libra. But that ranking is an average over archetypes, and it is worth being blunt about what it can and cannot tell you: your Sun sign is one of roughly a dozen placements that matter in synastry, and it is the slowest-moving of them. Two Ariess born three weeks apart have different Moons, different Venus placements and different Rising signs, and those decide far more about who fits them than the Sun does.
Which is why the useful version of this question isn't "which sign is my soulmate" but "which birth dates fit my actual chart" — a question that needs your real birth details and a computation, not a table.
Frequently asked questions
Which sign is most compatible with Aries?
On our computed index, Sagittarius — 82/100, #8 of all 78 sign combinations. The ranking comes from scoring real sampled birth charts, not from element tradition.
Which sign is least compatible with Aries?
Libra scores lowest at 1/100. That means the archetypes have the least natural support and the most friction — not that two real people with those Sun signs can't work.
Does Aries compatibility depend on more than the Sun sign?
Overwhelmingly, yes. Aries is a Sun sign, and the Sun is the slowest-moving placement in a chart. The Moon, Venus, Mars and Rising sign differ between two Ariess born weeks apart, and they carry most of the synastry weight.
Is this Aries compatibility ranking computed or written by hand?
Computed. We generate real birth charts for each sign, score every combination with the same engine that runs the live calculator, and average the results. Nothing on this page is a hand-assigned percentage.
Have someone specific in mind? Use the compatibility calculator to score two real charts.
Scores computed with Soulstral's synastry engine, calibration
2026-07-27.1. Read the methodology.