Aries and Scorpio compatibility: when chemistry has to become a commitment

Compare Aries and Scorpio by sign or birth date

The two Sun signs are filled in below. Switch to two birth dates and we look up Sun, Mercury, Venus and Mars for both of you, so you can read the placements for your own dates. Uncertain signs are flagged. No birth time and no account needed.

Birth-date positions use Swiss Ephemeris calculations based on NASA JPL planetary data. Read about the data and precision. The historical date tables below use a separate PyEphem calculation.

One ruler, no classical aspect

Ptolemy gives Mars two houses, Aries and Scorpio, signs 'having a similar nature' (Tetrabiblos I.17). One chapter earlier he files them apart. The Aries sign and the Scorpio sign sit five signs apart, and Ptolemy calls signs at that distance 'disjunct' and 'alien': they share none of his four aspects, and they 'divide the whole circle into unequal parts' (I.16).

Modern astrologers call the 150° angle a quincunx and treat it as an awkward aspect. In Ptolemy's scheme, the two signs share Mars as a ruler but form none of his four aspects.

Modern astrology also gives Scorpio Pluto, a planet found in 1930, and that's partly why newer readings make Scorpio the deeper, slower half. The traditional distinction is simpler. Aries is cardinal fire, quick to start. Scorpio is a fixed water sign: slow to commit and very hard to move once it has.

Two months in and no word for it

The 'what are we?' talk is awkward for most couples. A cardinal sign tends to want the answer as soon as the question occurs to it. A fixed sign tends to decide privately, sometimes weeks before saying anything, and may hear an early question as pressure.

Part of the trouble is that 'what are we?' is three questions folded into one. Pull them apart and each gets easier to answer. You can agree on one and not the others yet; being exclusive long before you're ready to be public is a perfectly good place to be, as long as you both know that's where you are.

And a simple rule for timing: ask once the answer would hurt. If you'd be upset to find out they were seeing someone else, you've waited long enough.

• Exclusive. Is either of you seeing anyone else, and is that all right with the other?
• Visible. Do friends and family know, is it on social media, and what do you call each other in public?
• Future. Are you making plans past next month, like a trip, a lease or a family wedding?

Venus: the closest this pair gets to its stereotype

In 10.1% of modeled pairs of Aries and Scorpio dates, the Aries date has Venus in Aries and the Scorpio date has Venus in Scorpio, the highest such figure among the twelve Aries pairings. So the stereotype, an eager Aries Venus meeting an all-or-nothing Scorpio Venus, is also the single likeliest Venus combination for this pair.

Our 1950–2005 date sample puts Venus in Scorpio on 32.0% of Scorpio Sun dates, then Sagittarius (24.2%) and Libra (23.6%). The second most common combination for the pair is Venus in Taurus for the Aries date with Venus in Scorpio for the Scorpio date, at 7.9% of modeled pairs, and those two Venus signs are themselves opposite each other. For talking things through, both Mercury signs repeat the Suns in 27.2% of modeled pairs.

Astrologers look to Venus for how someone wants to be loved and what makes them feel chosen, which is exactly what the 'what are we?' talk is about. Compare both Venus signs from your two birth dates before deciding whose need is whose.

The Aries and Scorpio date-sample estimates

These estimates pair two dates drawn independently from the 1950–2005 sample, with equal weight for every date within each Sun sign. They describe planetary combinations, not observed couples or relationship success.

Most common Venus pairings in this model: Aries with Scorpio (10.1%), Taurus with Scorpio (7.9%), Aries with Sagittarius (7.7%). Venus signs are listed in Aries Sun, then Scorpio Sun order. Mars can occupy any sign with either Sun sign. The most frequent Mars signs on sampled Aries dates are Taurus (14.3%), Gemini (12.3%), Aries (11.4%), Aquarius (10.2%), and on Scorpio dates Libra (16.5%), Virgo (13.7%), Scorpio (12.7%), Capricorn (11.5%).

Positions for the Sun, Mercury, Venus and Mars were calculated at noon UTC for each of the 20,454 days from January 1, 1950, to December 31, 2005, every day counted once. Pair figures match one Aries Sun date with one Scorpio Sun date drawn independently. They count how often sky combinations occur and say nothing about how real couples behave or how their relationships turn out.

Calculation method and downloadable date-sample tables

Who says it first, and what changes after

Who should say it first? Whoever notices they want it. In astrology's reading Aries is more likely to blurt it out and Scorpio more likely to have decided long ago without mentioning it, but plenty of charts run the other way. Waiting has its own cost. An unspoken assumption is how 'someone I'm seeing' turns into a week of short, careful texts.

Once it's official, agree what actually changes. More nights together? A message when plans shift? What happens with the ex who's still in the group chat? Fixed signs like Scorpio tend to treat a commitment as a contract with terms. Cardinal Aries tends to treat it as a fresh start and may relax once the question is settled. Say the terms out loud so neither of you ends up holding the other to a deal they never heard.

It helps to separate privacy from secrecy, too. Scorpio keeping a hard week to themselves is privacy. A dating app still active after you agreed to be exclusive is secrecy, and that's the kind jealousy feeds on. Couples years in still revisit these terms after a move, a new job or a baby.

Mars rules the water triangle, not the fire one

Ptolemy groups the signs into four triangles. The water triangle of Cancer, Scorpio and Pisces goes to Mars, 'related to it through his house, Scorpio', with Venus by day and the Moon by night. The fire triangle of Aries, Leo and Sagittarius goes to the Sun and Jupiter instead. Mars gets no share there, being a planet of the night sect rather than the Sun's (Tetrabiblos I.18). In Ptolemy's scheme, Mars has more say over Scorpio's element than over Aries's.

The usual reading gives Aries the quicker pace in bed and Scorpio the stronger wish for privacy. Shared Mars rulership doesn't tell you either person's Mars placement, though. Mars was in Aries on 11.4% of sampled Aries Sun dates and in Scorpio on 12.7% of Scorpio Sun dates, and both Mars signs match their Suns in just 1.4% of modeled pairs of dates.

Read the Aries Mars profile or the Scorpio Mars profile only if those are your placements, and look up a Mars sign by birth date if you're not sure. Then ask whether either preference actually fits before you bring it to bed. One of you may want to be wanted out loud. The other may want it kept strictly between the two of you.

Aries and Scorpio as friends: doing first, talking later

Friendship between these two usually starts with an activity: the climbing wall, a rec league team, a band, a work project nobody else wanted. While there's something to do, it's an easy friendship, because neither has to explain much.

It gets tested the first time one of them wants to talk instead. Scorpio may share something private and watch what Aries does with it. If Aries keeps that confidence, Scorpio may share more next time. When the shared activity ends, a season over or a job left behind, the friendship needs a standing plan, like a monthly dinner, or it quietly fades.

Attraction or attachment? The contacts behind the question

In synastry, attachment is read from the contacts between one person's Mars and the other's Venus or Moon. An aspect there is where astrologers look for attraction settling into something steadier, and with birth times the comparison also puts each person's Mars and Venus into the other's houses. Our explanation of synastry aspects shows what to look for, and why Moon signs matter in a match covers how astrologers weigh the Moon.

Before you assume you want the same kind of commitment, compare both Venus and Mars placements, using a birth chart from date, time and place for each of you. Astrology can describe the pull and the hesitation, but it can't tell you what the other person will say when you ask. Virgo sits five signs from Aries too, and the Aries match rankings explain why both signs turn up on so many worst-match lists.

What 'someone I'm seeing' meant

Suppose one partner is an Aries Sun with Venus in Aries and the other a Scorpio Sun with Venus in Scorpio, the 10.1% combination. At a friend's birthday the Aries partner says 'this is someone I'm seeing' and means it warmly: it's new, it's exciting, why rush a bigger word? The Scorpio partner hears a hedge, in front of friends, and spends the evening working out what it means.

Venus in Taurus on the Aries date, the 7.9% combination, is read as steadier and keener on security. That Aries might want a clear commitment too, and may already have used a bigger word, or be quietly waiting for Scorpio to pick one. Don't assume Scorpio is the one waiting to ask.

Aries and Scorpio questions