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
From birth dates to your own compatibility reading — no templates, no copy-paste
Date, time and city of birth — yours and your partner's. The year, month and day give us the chart's core.
FreeAn overall compatibility score, a six-area diagram and the key aspects between you — your initial relationship picture, free, in minutes.
FreeThe 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 £19.99Most compatibility horoscopes are template text by Sun sign. We do it differently.
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.
The reading adapts to the type of bond — from romantic to working partnerships
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
Real notes from people who've already read their compatibility
Free initial calculation plus two full-reading tiers
Go deeper on the astrology of relationships
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.
21 Mar — 19 Apr
Fire20 Apr — 20 May
Earth21 May — 20 Jun
Air21 Jun — 22 Jul
Water23 Jul — 22 Aug
Fire23 Aug — 22 Sep
Earth23 Sep — 22 Oct
Air23 Oct — 21 Nov
Water22 Nov — 21 Dec
Fire22 Dec — 19 Jan
Earth20 Jan — 18 Feb
Air19 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 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.
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.
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.
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.
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.
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.
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.
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.
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.
Complete WowAstro synastry readings for famous couples — the exact depth you receive. Read every word and preview the designed PDF, free.
The designed PDF report
See exactly how your compatibility arrives — cover, layout and imagery included.
Sample shown: Harry & Meghan — Compatibility Reading · read the full reading →
CompatibilityA full synastry reading for Harry and Meghan: where two charts spark, where they clash, and what holds them together.
View the reading
CompatibilityThe synastry of Charles and Diana — a famous match read sphere by sphere, from romance and communication to the hardest tensions.
View the reading
CompatibilityA synastry reading for William and Kate. Kate’s birth time is not officially recorded, so the house-based parts are approximate.
Birth time approximate — houses & Ascendant indicative
View the readingMore on synastry and relationships
CompatibilityYou've heard the word. A friend used it ("we ran our synastry") and you nodded as if you knew exactly what they meant. Most people, asked to define synastry on the spot, say something about charts and compatibility and then trail off into "you know, like a couples thing".
Oksana Miatova11 min
CompatibilityThree horoscope sites can read Cancer and Scorpio and come back with "soulmates", "watch the possessiveness", and "difficult match", each writer perfectly confident. They aren't lying. They're all looking at the same one tenth of the chart and filling in the rest with mood. Astrological birth cha...
Oksana Miatova17 min
CompatibilitySunday evening, kitchen table, two laptops open to the same colour-coded planner. He flags a missing comma in row eighteen at exactly the moment she does. They both laugh, then both quietly fix it on their own copy, then both notice the laugh has happened before. This is what virgo on virgo compa...
Oksana Miatova14 minBeyond 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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