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Compare two birth charts

Two charts side by side show where two people meet easily and where they push each other on. Choose Partner, Friend or Family, then add both sets of birth details.

Your details, and theirs

Partner is already chosen below; switch to Friend or Family if that fits better. Add both dates, times and places of birth.

Free birth chart · Placidus houses

Your free birth chart, drawn and explained.

Enter your birthday and we'll draw your birth chart and explain, in plain words, what it says about you. Add a partner, friend or family member to see how you two fit together. It's free: you'll see it here, and we'll email you a copy with your own shareable card.

Who's it for?

Where should we send your chart?

How we handle your email: privacy policy

Place names from GeoNames

How two charts are compared

Comparing charts, which astrologers call synastry, looks at where one person's planets fall against the other's. When one person's Moon sits close to the other's Sun, or Venus lines up with Mars, astrologers read a strong pull between the two. Easy angles (trines and sextiles) show what flows; harder ones (squares and oppositions) show friction that can also keep things lively.

Not just for couples

The same comparison works for a best friend, a parent and child or two siblings. The reading changes its tone to match the relationship you choose.

Try it with a famous chart

Every celebrity chart on Stars at Birth has a compare form with their birth details already filled in, so you can set your chart beside theirs.

Your chart, as Holly's artwork

Each Atelier Holly print is designed by artist Holly Biörklund and made to order from your birth details, in five colourways.

Dusk Blue custom birth chart print by Atelier HollyDusk BlueRose custom birth chart print by Atelier HollyRoseMidnight Blue custom birth chart print by Atelier HollyMidnight BlueEmerald Green custom birth chart print by Atelier HollyEmerald GreenViolet custom birth chart print by Atelier HollyViolet

See the birth chart prints