ZodiScope
Sign Up Free

Compatibility score

Capricorn and Aquarius Compatibility

57%

Capricorn and Aquarius compatibility score

Mixed match

Sun-sign score, Capricorn with Aquarius

Capricorn and Aquarius are moderately compatible, with friendship and marriage stronger than love and sex. Traditional astrology gives both signs Saturn, so each takes duty seriously, and no other next-door pair scores higher on our chart. You'll disagree about what you owe the family and which habits deserve to stay.

Strengths

  • A shared sense of duty under Saturn
  • A friendship that can argue happily
  • A marriage that runs better than the romance

Challenges

  • What's handed down against what still makes sense
  • Sex that takes longer to find its footing
  • Both sure the other is being stubborn

This score reads your Sun signs only. Compatibility Check compares your two full birth charts, including your Moon and rising signs and the aspects between your planets, so two real people can land well above or below 57%.

Score our birth charts free

Free account. Add their birth details in the app.

Or score two birth dates on this page

By ZodiScope. Western tropical astrology, scored from the distance between the two signs, their elements, modalities and ruling planets. How the score works

Capricorn and Aquarius in love, sex, friendship and marriage

Love

54% · Mixed

You respect each other's minds before anything else, and affection tends to arrive after that. It stays mixed because neither is quick to say the warm thing. A note, a saved article or a fixed bike counts as love here, and it's fine to say so.

Sex

48% · Mixed

It's their lowest score, mixed, so be plain about it. Say what you want to repeat and what you want to try differently, and don't turn a preference into an argument about who's uptight. A clear request is a relief to Capricorn, and talk is the route in for Aquarius.

Communication

58% · Mixed

You'll argue for fun, and it stays mixed because the fun can harden: cardinal Capricorn moves to act, and fixed Aquarius holds its ground. Capricorn asks what's worked and Aquarius asks why it has to be done that way. Trouble starts when either treats the other's question as an insult.

Friendship

66% · Good

Neither of you needs daily reassurance, both like a shared project, and you can argue through ideas without holding a grudge. It's the top score for these two, in the good band. If you're already friends, say what you'd want dating to change.

Marriage

60% · Good

Better than the love score, and good. Both of you take commitment seriously, and you can run a home together with very little fuss. The hard part is what the home is for, and which family habits make it through the front door.

Capricorn and Aquarius at a glance
Distance Next-door signs, one apart
Elements Earth and air
Kinds of sign Cardinal Capricorn, fixed Aquarius
Rulers Saturn for both in traditional astrology; Uranus is Aquarius's modern ruler
Rank on the Capricorn compatibility chart Seventh of twelve, and Capricorn's best air sign
Main question Which family traditions do you keep?

Capricorn and Aquarius compatibility by birth date

Your Venus, Mercury and Mars signs can lift or lower the Sun-sign score. Two birth dates give you a personal score in all five areas, with no birth time and no account needed.

Enter both birth dates, from 1900 to today. We look up the Sun, Mercury, Venus and Mars for each date, then score and compare them by sign. No birth time needed.

Two birth dates
Your birth date
Their birth date

Sign matches are worked out in your browser. Both birth dates go to our server and our positions provider so the planets can be calculated, and the anonymous astronomical results are cached per date. No account is needed. If you share a signup link, only your own date travels with it, and no birthdays reach our calculator analytics. Privacy policy.

Birth-date positions are calculated from NASA JPL data. Read about the data and precision. The historical date tables below use a separate PyEphem calculation.

The Capricorn and Aquarius zodiac symbols side by side

Which family traditions do you keep?

One of you hasn't missed the family dinner on the 24th in eleven years. The other has just asked, quite reasonably, what would happen if you did. It's November, the invitation's on the fridge, and nobody's said anything since.

Aquarius and Capricorn run into this one in plenty of forms: the holidays, the in-laws, how you'll raise the kids. Either sign can hold either side, and a Capricorn is sometimes the one asking why.

Keep it, shrink it or change it

Take one tradition at a time and leave the general argument out of it. Pick the dinner on the 24th, or the church service, or the annual week at the lake. Ask these about it:

One thing stays, one thing changes

Then make a yearly trade: one thing stays exactly as it is and one thing changes. You go to the dinner on the 24th and leave at nine. You keep the lake and drop the group photo. Leaving at nine keeps the dinner and gives you part of the evening back.

Marriage is one of this pair's stronger areas, so decide which family commitments you're making together before either of you accepts the next invitation.

One planet, two signs

Are Capricorn and Aquarius both ruled by Saturn? In traditional astrology, yes. To Saturn, Ptolemy says, 'were assigned the signs opposite Cancer and Leo, namely Capricorn and Aquarius' (Tetrabiblos I.17). Uranus, discovered long after him, is the modern addition for Aquarius, and our score uses the traditional rulers. That's the reason this pair has the highest score of the twelve next-door pairings on our chart.

So there's duty on both sides. One person's runs to what was handed down, and the other's runs to whether it still makes sense.

A birthday close to the line between these signs needs the year and time, so check the Capricorn and Aquarius boundary. The compatibility percentage elsewhere read 37 at zodiacsign.com, 55 at jobcannon and 70 at AskNebula on November 3, 2026.

Parents, children and siblings

A Capricorn parent with an Aquarius child will hear 'why do we go?' sooner or later. Give the real reason, then ask which part of the visit they'd miss. An Aquarius parent with a Capricorn child gets a kid who likes to know what's happening next and may want more structure than you're inclined to give. Offer it, and don't take it as a criticism.

Capricorn and Aquarius siblings often split the family without meaning to: one stays close to the parents and the routines, and the other leaves early and comes back with opinions. Holidays are when it surfaces. The test above works for siblings as well, and you can compare the Moon signs behind your family habits, which astrologers often read for family more than the Sun. The in-law question usually comes down to one thing: each partner handles their own family, and doesn't send the other in to deliver the news.

Love, sex and why Capricorn gets so interested

What draws Capricorn to Aquarius? Someone who doesn't care what the room thinks, and can still explain why. Capricorn, who's spent a good deal of time caring, finds that very hard to look away from. Aquarius, in turn, finds a person who can actually get an idea built. That interest can look like an obsession from the outside. Trouble starts when earning the other's respect becomes the whole courtship. Trust comes more easily once you've each seen the other keep a commitment: Capricorn watches what you do, and Aquarius watches whether you're straight about why, so say the reason along with the decision.

Sex is the lowest score, so let's be plain: this takes time and conversation. In the sample's Venus and Mercury counts, each sign's most common Venus sign is the other's Sun sign, and both Mercury signs land in Saturn's two signs in 63.0% of modeled pairs of dates, the highest of the twelve Capricorn pairings. So check both Venus signs from birth dates. An Aquarius Venus that wants friendship and Venus in Capricorn's slow warm-up ask for different things first, and you can find how each of you pursues too.

When friends start to wonder about more

You've been each other's first call for two years and helped each other move twice, and last weekend one of you asked whether you should try dating. On the scores, it's a fair question: friendship is the top area, marriage is good, and love and sex are the ones you'd have to build. Tell each other what you'd want to be different, and what you'd be sorry to lose, before you try anything.

At work you make a useful pair, one getting it done and the other testing the method, as long as you settle early who has the final word. See how Aquarius compares with the rest of Capricorn's chart, and put in both birth dates for your Mercury and Venus.

For whose family gets the 24th, astrologers start with each person's Moon and then Saturn contacts between the charts. Find both Moon signs in a free birth chart, then see how the two charts meet.

Two siblings, one invitation

A Capricorn sister and an Aquarius brother get the same invitation for the 24th. She's already bought the wine. He writes back asking whether anyone would mind if he came for dessert. Their mother would mind. Their father, it turns out, has wanted to eat earlier for years.

Run the three questions and it's a smaller argument. The meal is for their mother, and what she'd miss is everyone at the table once. So he comes for the meal, they all eat at five, and he's gone by eight. Swap the signs and it plays out the same way. What a Moon in Capricorn needs from home can tell you who's going to take it hardest.

How the Capricorn and Aquarius score works

We score two signs from four traditional relationships: the distance between them, their elements, their modalities and their ruling planets. Each area weighs them differently, and the headline score is the average of the five areas. Capricorn and Aquarius are neighboring signs (a semi-sextile); Capricorn is earth and Aquarius is air; Capricorn is cardinal and Aquarius is fixed; both are ruled by Saturn.

The distance sets the base for every area: a trine or sextile starts high, a square or quincunx starts low, and an opposition starts high for sex and lower for friendship. Elements shift it (two air signs talk easily, two fire signs run hot), as do modalities (two fixed signs are loyal and slow to give way). Two different signs with the same ruling planet, a Venus-ruled sign with a Mars-ruled sign, or the Sun with the Moon add a little more. Every Sun-sign pairing on ZodiScope's compatibility pages uses the same rules, so the numbers above can be compared with any other pairing here.

Capricorn and Aquarius in our 1950–2005 date sample

These estimates pair two dates drawn independently from the 1950–2005 sample, with equal weight for every date within each Sun sign. They show how often each Venus and Mercury combination turns up, which is why two real people with these Sun signs can score differently.

Both Venus signs repeat the Sun pair

5.4%

of modeled date pairs have Venus in Capricorn for the Capricorn Sun and Venus in Aquarius for the Aquarius Sun

Both Mercury signs repeat the Sun pair

29.6%

of modeled date pairs repeat the Sun signs in Mercury. Across all modeled pairs, Mercury signs share an element in 27.9%; Venus signs in 24.8%

Venus and Mercury signs on sampled Capricorn Sun dates (1650 days) and Aquarius Sun dates (1656 days), 1950–2005. Columns are separate distributions, not matched rows.
Capricorn VenusAquarius VenusCapricorn MercuryAquarius Mercury
Aquarius 34.1% Capricorn 29.8% Capricorn 56.8% Aquarius 52.1%
Sagittarius 25.2% Aquarius 25.6% Sagittarius 27.3% Capricorn 34.5%
Capricorn 21% Pisces 24.6% Aquarius 15.9% Pisces 13.3%
Scorpio 11.2% Aries 11.1%
Pisces 8.5% Sagittarius 8.8%

Most common Venus pairings in this model: Aquarius with Capricorn (10.2%), Aquarius with Aquarius (8.7%), Aquarius with Pisces (8.4%). Venus signs are listed in Capricorn Sun, then Aquarius Sun order. Mars can occupy any sign with either Sun sign. The most frequent Mars signs on sampled Capricorn dates are Scorpio (13.8%), Sagittarius (12.6%), Aquarius (12%), Libra (11.2%), and on Aquarius dates Sagittarius (12.8%), Pisces (12.3%), Aries (11.7%), Scorpio (10.9%).

The sample covers 20,454 dates from January 1, 1950, through December 31, 2005, with Sun, Mercury and Venus signs taken at noon UTC. Capricorn and Aquarius dates are paired independently, so the figures count combinations of dates, not couples.

Calculation method and downloadable date-sample tables

Compare your two birth charts

With a free ZodiScope account, you add their birth details in the app, run Compatibility Check between your chart and theirs, and save up to 5 people. Your free result from this page doesn't carry over to your account.

Compare our birth charts free

Deep Compatibility needs Pro and complete profiles for both people.

Capricorn and Aquarius questions

Are Capricorn and Aquarius compatible?

Yes, moderately, and more than any other next-door signs on our chart, because traditional astrology gives both the same ruler, Saturn. They score mixed overall, with friendship and marriage in the good band and love and sex behind. Expect disagreements about family and habit, and a partnership that often runs better than its reputation.

Which family traditions should Capricorn and Aquarius keep?

Keep the ones one of you would actually miss. Name the part that matters, then agree on what to shorten or change. A yearly trade helps: one thing stays exactly as it is and one thing changes.

Why do Capricorn and Aquarius score higher as friends than as lovers?

Shared duty and a liking for debate help the friendship, while neither sign is quick with affection. That leaves love and sex behind friendship on our chart. Marriage scores good too, so the friendship often turns out to be a strong base.

Compatibility report

Synastry & Compatibility Report

The free score reads your signs. This report reads both full birth charts against each other: the contacts that draw you together, the ones that test you, and how the coming year looks for the two of you.

Example report cover for two sample people, Maya and Daniel, with a chart wheelExample page: Maya's planets in Daniel's houses, one short reading for each planetExample page: the composite chart that blends the two charts into one, with its Sun and MoonExample page: Juno, Eros and Psyche contacts between the two charts

Pages from an example report for two sample people. Yours is written from both of your birth charts.

  • Key connections: where you click and where you clash
  • How each of you affects the other's life (house overlays)
  • Two charts of the relationship itself (composite and Davison)
  • Karmic contacts: the pulls that feel bigger than chemistry
  • Marriage and desire: Juno, Eros and Psyche
  • What works, what needs work and the year ahead

Synastry & Compatibility Report

$29 one-time

30-day money-back guarantee · no account needed After payment, add both people’s birth dates and places. Birth times are optional and make it more exact. Included with PRO in Deep Compatibility.