Compatibility calculator
How do your charts fit?
Put in two people's birth details. You'll see every close contact between your charts and what each one tends to feel like, free.
What you'll see
Five scores, and why
This is the real result for two example charts, Jo and Ade, from the same engine yours goes through. Yours also lists the planets behind every score.
Jo & Ade
Spark
62
Warmth
41
Talk
63
Staying power
64
Friction
34
- Spark
- Chemistry and pull, from Venus, Mars and Pluto contacts.
- Warmth
- Affection and feeling looked after, from Moon and Venus contacts.
- Talk
- How easily you follow each other, from Mercury contacts.
- Staying power
- Commitment and patience, from Saturn and lunar node contacts.
- Friction
- Where you rub each other the wrong way. Higher means more heat, not less love.
Reading the lines
The five contacts
conjunction
You feel this one straight away. It's strong, for better or worse.
sextile
An easy friendliness here. It grows if you both put something in.
square
Friction here. It can be sparky or sore, and it rarely gets boring.
trine
This comes naturally between you. Little effort, lots of ease.
opposition
You each have what the other lacks. Attractive, and sometimes a tug of war.
Questions
What is synastry?
Synastry is comparing two birth charts by looking at the angles between one person's planets and the other's. A Venus in one chart sitting opposite Mars in another, for example, is read as attraction with a bit of push and pull.
Do I need both birth times?
No. Without a birth time you still get every planet-to-planet contact. With both times you also see which part of each other's lives you light up (house overlays) and contacts to each Rising sign.
Is a low score bad news?
No. The scores count specific contacts, nothing more. Plenty of long, happy couples have a high friction score; it usually means they don't get bored. Read the aspects listed under each score rather than the number.