Compatibility by birth date — synastry from natal charts online · MULASTRO
✦ synastry · astrological compatibility

Compatibility
by birth date

An astrological reading of your couple from two natal charts. Venus × Mars, Moon × Moon, karmic nodes — seven chapters on how the two of you fit together.

What's inside the reading
★ 4.8 / 5 · 18,000+ couples have looked · secure payment

★ catalogue of astrological readings

An astrological reading of your couple — synastry and your natal chart

The star of the show is the astrological reading of your union from two natal charts. But if you'd rather start with yourself — your personal chart and love formula are right beside it ✦

💞 490 ₽
★ for couples

Compatibility from natal charts

Synastry · 7 chapters about your couple

Venus × Mars, Moon × Moon, Saturn × Venus, karmic nodes. How the two of you fit together and where your union is heading.

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590 ₽

Natal chart from an astrologer

Your personal astrological reading

Sun, Moon, Venus, Mars, Ascendant. Your personality code in a single chart — your gifts, your shadows and your growth points.

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💘 390 ₽

Love formula

Your personal relationship blueprint

How you fall in love, what feels like "home", where the same patterns repeat. A personal map of love — not about your couple, about you.

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★ what's inside the reading

What synastry reveals —
seven chapters about your couple

An astrological reading of a couple at MULASTRO isn't "you're a Cancer and a Leo, it's complicated". It's seven chapters on exactly how your planets meet one another ✦

Sun × Moon — the heart of your couple

The core astro-formula of compatibility: how your "self" (the Sun) meets their emotional world (the Moon) and vice versa. This is the essence of why you're drawn to each other, and where the deepest recognition lives.

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Venus × Mars — chemistry and attraction

How you love × how they desire. Sexual and romantic compatibility without the woo: where the fire is between you, where it fades, and what to do about it.

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Mercury × Mercury — conversations

Whether you match in pace of thought, humour and the way you get a point across. Why one of you is joking while the other hears criticism. Where you speak "the same language", and where you need a translator.

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Moon × Moon — your emotional language

How you hold each other, how you argue, how you go quiet. What feels "safe" to each of you, and why one of you withdraws into silence just when the other needs to talk right now.

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Saturn × Venus — the long game

This is about how serious it is: whether it's "for the summer" or "for life". Where your commitments are, and where your boundaries lie. The most pragmatic block of the reading.

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Jupiter × Jupiter — where you grow together

Shared goals, travel, outlook on life. What the two of you can do together that neither could alone. Where your couple is heading in 3, 5, 10 years.

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Lunar nodes — why you met

The karmic block: which tasks your couple came together to work through. Where the recurring patterns come from and what will complete them. Not "it's your destiny", but specific scenarios.

Check your synastry

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✦ how we calculate it

Precise synastry
from two natal charts

Each date, time and place of birth becomes a natal chart with the planets placed. MULASTRO overlays both charts and sees where your couple's planets meet in aspect ✦

01

You enter your birth details

Both partners' dates, times and places of birth. Names are optional. If you don't know the exact time, we'll set midday and note honestly which points will carry a margin of error.

02

MULASTRO builds two natal charts

We calculate the positions of the Sun, Moon, Venus, Mars, Mercury, Jupiter, Saturn and the nodes — and overlay the charts. We see the aspects between your couple's planets.

03

You get your synastry reading

7 chapters about your couple: Sun × Moon, Venus × Mars, conversations, emotional language, the long game, growth, karmic nodes. 25+ pages of text.

Not "73% compatibility" from an app. Every couple has a unique configuration of aspects between their planets: no one else shares it. MULASTRO reads precisely yours.

★ why MULASTRO specifically

How synastry at MULASTRO differs
from the "compatibility" in the apps

Deeper than "star signs"

The reading isn't about your Sun sign — it's about the specific aspects between your couple's planets: Venus to Mars, Moon to Moon.

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Clear, human language

MULASTRO turns every synastry aspect into living text — not dry "sextile, trine, square".

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Unique to your couple

The configuration of aspects between two natal charts never repeats. 25+ pages about your connection specifically.

📱 PDF soon

Telegram bot + PDF

The Telegram bot is always to hand — revisit any synastry chapter in one tap. PDF download coming soon.

★ what you get

It's all in here —
so life's a little easier

MULASTRO isn't just a reading. It's your own little astro-library: PDFs, a Telegram bot and your history — all to hand whenever you need them 🛠

📄 soon

Save your reading as a PDF

A lovely PDF you can print, send to someone you love, or simply keep as a memento.

✈️ popular

Telegram bot

Forecasts, insights and quick calculations land straight in Telegram — you don't even have to open the site.

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Be the first to know

Push notifications give you a nudge about big transits and your strongest days. No spam, just the good stuff.

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Just like an app

Add MULASTRO to your phone in a single tap — an icon on your home screen, and it works offline too.

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Share it with someone dear

Send your chart to a friend or your mum with a single link — it opens with no sign-up needed.

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Your very own library

Every reading is kept in your account — pop back to any of them whenever you need an answer.

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Just between us

Your birth date and personal details are encrypted. We never pass them on and never use them for ads.

💬 24/7

A helper on hand

The chat knows your whole chart — ask it anything and we'll dig deeper in your context.

📱 soon

Templates for social

Gorgeous stories and posts with your own insights — share your reading on Instagram or Telegram.

★ if you have doubts

Recognise yourself?

This isn't about "compatibility in percentages". These are the specific aspects between the planets in your synastry — each with a name, an expression and a clear meaning ✦

  • 01 Why do we keep repeating the same conflict?
  • 02 Is this my person — or am I just afraid of being alone?
  • 03 Why do I keep falling for the same kind of people?
  • 04 What actually works between us, and where are we just putting up with it?
  • 05 Are we together out of love, or out of habit now?
  • 06 What's next for us — are we growing together or drifting apart?

In a synastry reading, the answer to every question is 7 chapters about your specific couple 💫

Check your synastry

★ what people say about us

8,000+ couple readings
each one about a specific synastry

Not "we're 76% compatible", but: here's where my Venus squares his Mars — and yes, that's exactly what we argue about in bed and in the supermarket. It made so much more sense ✦

Anya + Denis, 5 years together couple · London

I ordered a synastry for a past relationship. I saw the very pattern: my Moon under tension to her Saturn — about coldness and obligation. At least now I know what to look for.

Kirill, 31 ran it on an ex

We've been together a long time and I thought I already knew everything about my husband. The chapter on the lunar nodes was a real revelation. I finally saw where our recurring loop comes from.

Lena + Artyom, 8 years family · Manchester

My wife asked me to, and I expected "star signs for girls". It turned out to be a concrete reading of our charts. The Saturn and Venus part really landed — it's exactly about our long game.

Igor, 38 married · Bristol

I ordered it about a new relationship — I wanted to know whether it's for me. I realised it is, and where the conflicts might go. Saved myself a year of guessing and scrolling Pinterest 💫

Ksenia, 28 just started dating

We read it together. We argued over a couple of points — but in the end agreed: it's spot on about us. The most useful bit was the Jupiter × Jupiter chapter, right on our plans for next year.

Anton + Masha, 2 years moved in together
8 000+ couple readings
4.8 / 5 average rating
93% would recommend

★ price

One synastry —
yours forever

No subscriptions, no hidden charges. Pay once — the reading stays yours 💫

flagship product

Synastry from natal charts

A reading of your couple — two charts, 7 chapters, 25+ pages

  • Sun × Moon — the heart of your couple
  • Venus × Mars, Mercury × Mercury
  • Moon × Moon, Saturn × Venus
  • Jupiter × Jupiter + your couple's lunar nodes
  • PDF download soon + Telegram bot
  • Yours forever, no subscription
start with yourself

Natal chart

Your personal astro-reading — 7 chapters on your chart

  • Sun, Moon, Ascendant — the foundation
  • Venus, Mars, Mercury — love and how you speak
  • Jupiter, Saturn — growth and boundaries
  • PDF soon + Telegram bot

★ frequently asked

What people usually ask
before a synastry

01 What is synastry, and how does it differ from a "compatibility horoscope"?

Synastry is the overlay of two natal charts. We don't look at "you're a Cancer and a Gemini, it's hard", but at the specific aspects between your couple's planets: one person's Venus to the other's Mars, Moon to Moon, Saturn to Venus. It's a reading of your particular connection ✦

02 Do I need the exact birth time for both of us? What if I don't know it?

It's preferable — without the time we can't see the Moon and Ascendant precisely. If you don't have it, we set midday and note honestly in the reading which points carry a margin of error. You still get 80% of the picture. You can look up the exact time on a birth certificate or with the hospital 🤍

03 Does it work if neither of us believes in astrology?

Synastry doesn't require belief. It's a tool for reflection: if you recognise your real patterns in the reading, then it works. If you don't — we'll refund you. Many couples read it simply as an "outside second opinion", no mysticism required.

04 Can I check a couple I'm not with yet?

Yes, that's actually a common request. It's better to see the shape of a connection before you're emotionally invested. Your partner won't know about the reading — all we need to calculate is their date, time and place of birth 💫

05 What if the compatibility is low — should we split up?

There's no such thing as "low" compatibility. There are couples with lots of attraction and little stability — and the other way round. The reading shows where your resources are and where you'll need to put the work in by hand. The decision is always yours — we only show you the map.

06 How is this better than the free compatibility in apps?

Free ones usually show "73% compatible" by Sun sign — magazine-column level. We build both natal charts in full and read 7 key aspects in living text. 25+ pages about your specific couple ✨

✦ the finish

The stars suggest —
you choose

Synastry will show where your couple has chemistry, where the friction is and where your union is heading. What you do with it is entirely up to the two of you 💫

Your result straight after payment ✨