Astrology compatibility compares two people's signs to show where they connect easily and where they need work. Pick your sign and theirs to get a score and a written reading for any of the 78 sign pairs. For a personal result, the free synastry chart compares both full birth charts across romance, communication, emotional bond and long-term staying power. Free, no sign-up.
- Free with no sign-up and no ads.
- A score and written reading for all 78 sign pairs.
- Element and modality explained for each pair.
- Full-chart synastry for two birth dates, scored 0–100 in four categories.
- Computed in your browser; nothing to install.
- Share any result as a 9:16 image.
Example reading
Input: Taurus and Virgo
Result: A high-scoring earth pairing. Both value steadiness, care and practical help, so trust builds quickly. The friction point is routine: two careful signs can get stuck. Plan new things together on purpose. Open the pair page for the full reading, or compare both birth charts for a personal score.
How to check compatibility
- Choose your zodiac sign.
- Choose the other person's sign.
- Read the score and the strengths and friction points for the pair.
- Open the pair page for a full reading on love, friendship and communication.
- For a personal result, enter both birth dates in the synastry chart.
Sign compatibility by element
| Your element | Easiest with | Takes more work with | Why |
|---|---|---|---|
| Fire (Aries, Leo, Sagittarius) | Fire, Air | Water, Earth | Air feeds fire; water and earth can feel slow or heavy |
| Earth (Taurus, Virgo, Capricorn) | Earth, Water | Fire, Air | Water nourishes earth; fire and air can feel restless |
| Air (Gemini, Libra, Aquarius) | Air, Fire | Earth, Water | Shared love of ideas; earth and water want more depth or calm |
| Water (Cancer, Scorpio, Pisces) | Water, Earth | Fire, Air | Shared depth and loyalty; fire and air can feel too quick |
Element is a starting point, not a verdict. Plenty of fire–water couples thrive because they learn from each other.
Sign compatibility vs full-chart compatibility
| Sign compatibility | Synastry (full chart) | |
|---|---|---|
| What you need | Two zodiac signs | Two birth dates; times optional |
| What it compares | Sun signs only | Sun, Moon, Venus, Mars, Mercury, Saturn and more |
| Result | Pair score and reading | 0–100 score in four categories plus the strongest aspects |
| Best for | A quick first look | A personal, detailed match |
Two people with "incompatible" Sun signs can still share a strong Moon or Venus link. That is why the full chart often tells a different story.
How to use a compatibility result
Use the score to start a conversation, not to end one. Read the friction points as places to be patient with each other, and the strengths as what to lean on. TarotDew is for entertainment and self-reflection only; it is not a substitute for medical, legal, financial or mental-health advice.
Frequently asked questions
What is astrology compatibility?
It compares two people's zodiac signs, or full birth charts, to show where they connect easily and where they may clash.
Which zodiac signs are most compatible?
Signs of the same element, or fire with air and earth with water, usually connect most easily. Every pair has strengths, and the full chart matters more than the Sun sign.
Is this compatibility test free?
Yes. Sign compatibility for all 78 pairs and the full synastry chart are free with no sign-up.
Do I need birth times?
Not for sign compatibility. For synastry, times are optional; without them the Moon and houses are less precise and the result tells you so.
Can astrology tell me if a relationship will last?
No. Compatibility describes tendencies, not outcomes. How two people treat each other matters far more.
Does it work for friends and family?
Yes. The readings cover communication and emotional bond, which apply to any relationship.