Star Sign Compatibility Calculator
Enter two birthdays or pick two signs and see your elements, your match percentage, and a short reading.
Friends love to compare star signs, and couples often ask if their signs get along. Fire signs sound bold, water signs sound deep, and the mix can spark a fun debate over coffee. This star sign compatibility calculator finds each sign from a birthday, or lets you pick signs straight from a list, then shows both signs and their elements with a match percentage.
Check your star signs
Enter two birthdays, or pick two signs from the lists, then tap the button. You'll see both signs, their elements, and your match.
Please add two birthdays or pick two signs first.
Your results will show here. Try March 21 and July 23 first if you'd like a quick sample.
Signs: - and -
How to read your signs
Each sign covers a set span of dates in the year, and the tool reads your birthday against those spans. Aries runs March 21 to April 19, Taurus runs April 20 to May 20, and the rest follow in order through Pisces, which runs February 19 to March 20. If you were born on March 21, try Aries first, since that's the first day of its span. Wikipedia's list of astrological signs shows every date span in one place, so check yours there if you're unsure.
Fire covers Aries, Leo, and Sagittarius; earth covers Taurus, Virgo, and Capricorn; air covers Gemini, Libra, and Aquarius; and water covers Cancer, Scorpio, and Pisces. The star sign compatibility calculator scores the same element at 90, fire with air or earth with water at 82, and the tenser mixes lower. Elements drive the score, so two signs that share one tend to top the list. The zodiac groups those signs by element, so the element behind your sign drives the score.
If you were born on a cusp day, try both signs in the star sign compatibility calculator next to each other and see which reading feels closer. Cusp dates can vary by year, so the sign on the edge may flip, and the tool lets you pick signs straight from the list when a birthday lands on the line. A quick check of both options beats guessing.
What to do with your result
Use the result from the star sign compatibility calculator as a chat starter on a date night or a long drive. Ask your partner which part of the reading fits and which part misses, and you'll learn more from that talk than from the percentage. The numerology compatibility calculator gives you a numbers based take on the same pair when you want a second round.
Compare your elements from the star sign compatibility calculator when you plan something together. Fire and air pairs often love fast plans and big outings, while earth and water pairs may prefer slow weekends at home, and naming that gap helps you pick plans you both enjoy. The love compatibility calculator adds a name based score to the mix.
Run the signs of friends and family through the star sign compatibility calculator too, since group comparisons make easy party chat. A sibling pair or a parent pair can go through the tool in seconds, and the results give everyone something to laugh about. The tools page holds the rest of the couple tools when the group wants more. Build one with ship name generator and see what it makes of your names, then check the signs behind the blend.
Save both signs and their elements in a note on your phone, since you'll want them again the next time signs come up. A saved pair from the star sign compatibility calculator means you can jump straight to the talk instead of retyping birthdays. Friends will ask for their own readings soon enough, so keep the tool handy.
Mistakes to avoid
Don't treat the score as proof about your bond. A star sign compatibility calculator is fun, and there's no proof that birth dates decide how two people get along. Trust your real talks and shared life instead, and let the stars stay in the background.
Keep a low mix out of disagreements, since a playful contrast isn't a flaw in either person. A fire and water score of 55 describes a lively contrast, and it isn't a flaw in either person, and pulling it into a real argument only adds noise. If a talk gets tense, put the tool away and listen first.
Check both signs in the star sign compatibility calculator when a birthday sits on the edge of a span. A March 20 birthday may read as Pisces in one year and Aries in another, so a single run can mislead you. Try the love language quiz or the is he the one quiz when you want a prompt that looks at how you act, not when you were born.