Birth Date Compatibility Calculator — all 12 signs, free

How the zodiac compatibility calculator works

The calculator compares two zodiac signs across five areas: the signs themselves, love and chemistry, working rhythm, communication and long-term outlook. Each area gets its own score from 0 to 100 with a short explanation, and the overall number is the summary of all five, not a single lucky trait.

Enter two birth dates, or pick the two signs directly if the exact dates are unknown.
Set the gender of each partner or leave it unspecified: same-gender pairs get their own reading.
Press "Check compatibility" and read the overall score, the strengths, the risk zones and the advice.
Copy the link with the result if you want to send the same pair to someone else.

Everything is calculated in your browser from a static table of readings. Birth dates never leave the device, nothing is uploaded to a server, and no sign-up is required.

Zodiac compatibility table for all 12 signs

The table shows the overall score for every one of the 144 combinations. Rows are the woman's sign, columns are the man's sign, and the reading differs depending on which side each sign is on. Tap any cell to load that pair into the calculator above and read the full breakdown.

Overall compatibility score for every pair of zodiac signs
Woman / Man	Aries	Taurus	Gemini	Cancer	Leo	Virgo	Libra	Scorpio	Sagittarius	Capricorn	Aquarius	Pisces
Aries	79	74	70	71	89	77	80	75	81	73	76	77
Taurus	74	83	66	83	78	86	80	89	74	82	70	86
Gemini	74	63	74	63	76	74	79	73	85	69	80	68
Cancer	78	87	67	84	76	83	82	81	69	85	70	88
Leo	88	75	69	64	82	76	76	81	85	70	81	72
Virgo	72	76	66	82	69	80	74	89	65	74	66	62
Libra	75	80	82	71	80	72	83	66	81	77	82	72
Scorpio	76	74	60	82	75	76	73	82	74	87	71	88
Sagittarius	76	65	84	65	87	69	83	76	78	76	81	67
Capricorn	75	81	65	80	72	83	70	88	76	82	73	74
Aquarius	81	66	80	62	77	62	83	70	81	75	69	78
Pisces	78	79	72	83	82	89	82	90	67	87	76	88

A score above 75 means the pair has a natural common ground, 45 to 74 means it works but needs effort in specific areas, and below 45 means the signs pull in different directions more often than they help each other.

Detailed readings for popular pairs

Some pairs get a page of their own, with a separate score for each gender, a same-sex reading, the full breakdown across five areas and the advice that goes with it.

All compatibility horoscopes — the full section with every pair

Compatibility by element: fire, earth, air and water

Element is the first thing that explains why one pair feels easy and another feels like hard work. Signs of the same element usually understand each other without words, while neighbouring elements either fuel or extinguish each other.

Fire: Aries, Leo, Sagittarius

Fast starts, open emotion and a need for movement. Fire pairs well with air, which gives it ideas and space, and struggles with water, which needs safety more than momentum. Two fire signs together get passion and a permanent fight over who leads.

Earth: Taurus, Virgo, Capricorn

Stability, plans and results you can touch. Earth is comfortable with water, which adds warmth to the structure, and tense with air, which changes direction faster than earth can rebuild. Two earth signs build a strong life together and can forget to make it interesting.

Air: Gemini, Libra, Aquarius

Words, curiosity and freedom. Air understands fire and gets bored with earth. Two air signs talk endlessly and both wait for the other one to handle the everyday things.

Water: Cancer, Scorpio, Pisces

Feelings, attachment and reading the room. Water blends with earth and gets hurt by the directness of fire. Two water signs feel each other deeply and can drown in mutual moods with nobody left to steer.

What the breakdown covers

Signs

How the two signs work as a combination: which elements and qualities support each other and where the characters collide.

The couple's chemistry

Attraction, closeness and the temperature of the relationship, read through the interaction of Venus and Mars for both signs.

Working rhythm

How the pair would handle a shared project: who sets the pace, who holds the details and where the conflict over control usually starts.

Communication

How easily the two talk, argue and make up, and which misunderstandings repeat in this exact combination.

A long union

What the pair looks like on a long distance: what holds it together over years and what quietly wears it down.

Compatibility by birth date between a man and a woman

The most common request is a compatibility check by birth date between a man and a woman. Enter both dates, and the calculator determines each sun sign and loads the reading written for that exact pairing — the man's sign first, the woman's second. Order matters: the same two signs give a slightly different reading depending on who is who, because the roles inside the pair are not symmetrical.

The result is a percentage with a breakdown across five areas: love and chemistry, working rhythm, communication, everyday life and the long union. Free, online, no sign-up — and the calculation runs in your browser, so neither birth date leaves your device.

Compatibility for same-gender couples

The calculator works for two women and for two men, not only for a woman and a man. Set the same gender on both sides and it loads a reading written for that pair — a separate text, not the heterosexual one with the pronouns swapped. If you would rather not state gender at all, choose "Prefer not to say" and the reading is built for the pair of signs without a gender role.

The breakdown covers the same five areas — love and chemistry, working rhythm, communication, everyday life and the long union — and the overall percentage is calculated the same way. The result opens instantly, the calculation happens in your browser, and no account is needed.

Frequently asked questions

How is zodiac compatibility calculated?

Each of the 144 sign combinations has a prepared reading built on elements, qualities and ruling planets, with a separate score for five areas. The overall number is the summary of those areas, so it does not change from one check to the next.

Do I need the exact birth time and place?

No. The calculator works with sun signs, so a date is enough, and if you already know both signs you can skip the dates entirely. Birth time and place matter for a full natal chart, which is a different kind of reading.

What does the overall score mean?

Above 75 the pair has a natural common ground. Between 45 and 74 the relationship works but needs conscious effort in specific areas. Below 45 the signs pull in different directions more often than they support each other, which is a warning about the effort required, not a verdict.

What if the score is low?

Read the risk zones and the advice instead of the number. A low score usually points at two or three concrete habits like pace, control, or the way conflicts are handled, and those are exactly the things a couple can agree on.

Does it work for same-gender couples?

Yes. Pick the same gender for both partners, or leave gender unspecified, and the calculator uses a separate reading written for that pair rather than reusing the heterosexual one.

Why does the score change when I swap the partners?

Because the reading is written for a direction, not just a pair. A woman born under Aries with a man born under Leo is a different dynamic from the reverse, so the two cells in the table can differ.

Is my data stored anywhere?

No. The readings are static files loaded into the browser and the whole calculation happens on your device. Birth dates are not sent anywhere and there is no account to create.

Can I check compatibility by birth date only?

Yes, that is the default input. Enter two birth dates and the calculator derives both sun signs itself, then shows the overall percentage and the full breakdown. If a date falls on the boundary between two signs, the page says so and lets you pick the intended sign.

Does the result come with an explanation?

Yes. Beyond the overall percentage you get a score for each of the five areas with a short text, a list of strengths, a list of risk zones and concrete advice for this exact pair. Nothing is hidden behind a paywall or a sign-up.

How do I check compatibility by birth date between a man and a woman?

Enter both birth dates and set the genders — the calculator finds each sun sign and loads the reading for that pair. If you already know both signs, you can pick them directly and skip the dates. The reading is written specifically for a man-and-woman pairing, and swapping who is entered first changes it slightly.

Is the calculator free?

Yes, the web calculator is free and unlimited. The ProRoast app adds compatibility history, saved people and the rest of the dating tools.

Birth date compatibility calculator for a man and a woman