Compatibility from two birth charts
Not a calculator — a proper synastry reading for the two of you. Ten sections, 5,000+ words, specific advice for your actual relationship.
Free initial compatibility score · 14-day money-back on full readings
For entertainment and self-reflection only. Not medical, legal, financial or psychological advice. Consult a qualified professional for important decisions.
Three simple steps
How it works
From birth dates to your own compatibility reading — no templates, no copy-paste
Enter both birth details
Date, time and city of birth — yours and your partner's. The year, month and day give us the chart's core.
FreeInstant initial result
An overall compatibility score, a six-area diagram and the key aspects between you — your initial relationship picture, free, in minutes.
FreePersonalised reading
The system writes a unique reading in 10–15 minutes — what a careful astrologer would give you, only faster. Ten sections about the two of you.
From £19.99Not a calculator — a proper reading
Most compatibility horoscopes are template text by Sun sign. We do it differently.
Ordinary calculators
- 200–500 words from a Sun-sign template
- One compatibility percentage with no explanation
- "Aries and Cancer — 45%." Why? What now? Silence.
- The same text for every couple with those signs
WowAstro
- 5,000–10,000 words of unique text for your two charts
- Ten sections: from emotional fit to long-term potential
- Every aspect between your charts explained — what it actually means for you
- Specific advice: what to do, not just "compatible / not compatible"
The reading takes 10–15 minutes to write — not because it's slow, but because it works through every aspect between your two charts. Like a professional astrologer, ten times faster and fifteen times cheaper.
For any kind of relationship
The reading adapts to the type of bond — from romantic to working partnerships
What you'll find inside
A deep reading across eight key relationship areas
5,000–10,000 words of personalised reading with specific advice for the two of you
Sample reading
Compatibility radar
Included in every reading — free
What couples say
Real notes from people who've already read their compatibility
Pricing
Free initial calculation plus two full-reading tiers
Initial calculation
- Overall compatibility score
- Six-area radar diagram
- Top three aspects (names only)
- Birth charts for both of you
Full reading
- Everything in the initial calculation
- Ten sections · 5,000+ words
- All relationship areas covered
- Every synastry aspect explained
- Specific advice for the two of you
- PDF reading by email
Extended reading
- Everything in the Full reading
- 7,000–10,000 words
- Composite chart for the relationship
- Karmic ties and the bond's longer arc
- Deeper guidance across every area
- 12-month transit map for the two of you
Further reading
Go deeper on the astrology of relationships
Aries Cancer Compatibility: A Square Pair Explained
12 min
Cancer & Capricorn Compatibility: An Opposition Pair Explained
14 min
Gemini and Pisces Compatibility: The Translator and the Mystic
14 min
Aries and Aquarius Compatibility: Fire-Air Vision
18 min
Taurus and Libra Compatibility: Two Sides of Venus
18 min
Gemini and Libra Compatibility: The Air Trine of Words and Grace
17 minZodiac sign compatibility
Each Sun sign has a distinctive temperament and element. A proper compatibility reading uses your full birth date — and shows how your sign actually meets your partner's, from instant attraction to deeper understanding. People born in different months and years express things very differently.
Aries
21 Mar — 19 Apr
FireTaurus
20 Apr — 20 May
EarthGemini
21 May — 20 Jun
AirCancer
21 Jun — 22 Jul
WaterLeo
23 Jul — 22 Aug
FireVirgo
23 Aug — 22 Sep
EarthLibra
23 Sep — 22 Oct
AirScorpio
23 Oct — 21 Nov
WaterSagittarius
22 Nov — 21 Dec
FireCapricorn
22 Dec — 19 Jan
EarthAquarius
20 Jan — 18 Feb
AirPisces
19 Feb — 20 Mar
WaterSun-sign compatibility is only the surface. For an accurate reading the Moon, Venus and Mars in each person's birth chart matter more. Use the full birth details — year, month, day and time — to see the actual picture.
Compatibility from a birth date: what it is and how it works
Compatibility from a birth date is one of the most useful tools in modern astrology. Thousands of people check it daily to understand how well two of them fit, their partner's character, and where the relationship is heading. An online compatibility reading from a birth chart uses the precise planetary positions at the moment each person was born.
Why check compatibility
Every person is born with a particular pattern of planetary energies. When two people meet, their birth charts interact — aspects form between them that shape the texture of the relationship. A compatibility reading helps you understand where the attraction sits, where the friction is, and how to build something steady together.
It's useful at any stage: at the start, when you want to understand the long shape; in the middle, when you want to name the bond; in a long relationship or marriage, when years of small things need a frame. Every couple goes through change over time — the chart helps you read the weather. Run yours and see what your bond is built for.
What goes into the reading
For a full reading we need the date, time and city of birth for both of you. From that we build two birth charts, then look at synastry — laying one chart over the other. The system reads the interplay of the Sun, Moon, Venus, Mars and the rest, and writes the picture of your bond. Every detail matters.
It's not only signs that count — the astrological houses where one person's planets fall in the other's chart matter too. One person's Venus in the other's seventh house points to strong romantic attraction; Saturn signals commitment and structure.
Types of compatibility
Astrological compatibility covers different sides of life. Romantic compatibility is desire, emotional closeness and being understood — the love-relationship layer. Compatibility in marriage goes further: shared values, day-to-day stability, the ability to build something long. Working compatibility tells you whether you can actually collaborate; friendship compatibility tells you whether the ease is real. A year-ahead reading for a couple points to the months that suit big decisions and the ones that ask for patience. Each type opens a different facet of family life and the bond.
There's also parent-and-child compatibility. The birth charts help you understand why a child behaves the way they do, and how to build a steady relationship at home. People born in August or October show very different qualities from those born in June or November — date and month shape character.
Elements and compatibility
Astrology splits the twelve zodiac signs across four elements. Fire signs (Aries, Leo, Sagittarius) are impulsive and warm. Earth signs (Taurus, Virgo, Capricorn) value stability and craft. Air signs (Gemini, Libra, Aquarius) thrive on conversation and ideas. Water signs (Cancer, Scorpio, Pisces) live in feeling and intuition.
Signs of the same element usually get on. The richest growth tends to come from complementary elements: Fire and Air feed each other's energy; Earth and Water build something deep and steady together.
Compatibility isn't a verdict
A low score doesn't mean the relationship is doomed — you may suit each other more than it first looks. Tense synastry aspects point to growth areas. Many strong couples have difficult chart configurations; the work itself is what made them strong. The reading shows the friction and the way through it.
Compatibility from a birth date isn't tarot. It's a system based on precise calculation — it turns planetary positions into clear descriptions of each person's needs and rhythms. Try it: you may find names for things you've felt for years.
Other compatibility methods
Beyond synastry there are other approaches: numerology, the Chinese zodiac, tarot, and more. Name-based calculators, year-of-birth animals, the I Ching — each has its angle. Unlike astrology, most of these only use one person's data. Synastry is richer because it reads the interaction of two full charts at once.
Compared with those methods, synastry rests on precise data — planetary coordinates at a specific time. Every digit in your birth date has meaning, and the chart shows the whole picture. The reading on this site is built for your two charts specifically, not a generic profile.
How to improve compatibility
Once you have the reading, start with the areas where the score is high — that's your base. Where the score is lower, name the pattern and agree on small habits that ease it. The willingness of both people to keep showing up is what makes the rest workable; the reading points to where to start.
You'll probably notice that certain difficulties map to specific planetary aspects. That's not a compatibility verdict — it's a clearer map. The lessons inside the harder aspects often become the relationship's source of strength. Run the reading and you'll have your own version of the map within minutes.
How to run the reading
Enter the date (day, month, year), the time (hours and minutes) and the city of birth for both of you. The calculation respects each city's time zone — accuracy matters down to the first degree of the Ascendant. If you don't know exact times, that's fine — the system adapts, and the reading flags which sections are lighter without exact times.
The initial calculation is instant — you'll see the result the moment you submit. Thousands of couples have used the reading to understand their bond. It's useful at any stage, from the first year to a long marriage. The birth chart shows the work the relationship is here to do.
More on synastry and relationship astrology in our articles section. Compatibility readings, lunar calendars, year-ahead forecasts for couples and a guide for every Sun sign all live on dedicated pages.
Every person carries a unique energetic signature, set by the date and time of birth. The arc of a relationship begins the moment you enter the details. Almost every couple asks: "Where is our strength?" and "What do we need to work on?" The health of a relationship isn't the absence of conflict — it's the ability to find the growth edges and keep moving. Every pairing is its own thing — June and November, August and October, every other combination.
Questions and answers
How do I check compatibility from a birth date?+
What is synastry, and how is it different from a sign-based compatibility horoscope?+
What actually shapes compatibility between two people?+
Can you do compatibility by name and date of birth?+
Do I need an exact birth time?+
Does this work for friends, colleagues, or parents and children?+
What's in the free initial calculation?+
How is the compatibility score calculated?+
Which zodiac signs are most compatible?+
What if the score is low?+
Does the year of birth affect compatibility?+
Can I find an ideal partner by birth chart?+
What other compatibility methods exist?+
What should I pay attention to on a first compatibility reading?+
How does compatibility shape the relationship's future?+
Beyond the compatibility reading, our articles cover the psychology of relationships, the elements and natal astrology more broadly. Daily moon notes, love forecasts, lunar calendars and guides for every Sun sign — new pieces every month.
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