Zodiac Compatibility Calculator
Pick two signs. Get a score built from aspect, element, modality and ruling planet.
Not sure of a sign? The dates are listed next to each name.
What works
Where it snags
Sun sign compatibility is a starting point, not a verdict. A full chart involves a lot more than two birthdays.
Cancer and Leo sit 30° apart on the zodiac wheel, pairing Water with Fire. They score 62% overall, which puts them in the hard mode band.
Cancer and Leo at a glance
| Overall compatibility | 62% — Hard mode |
|---|---|
| Chemistry | 58% (mixed) |
| Communication | 58% (mixed) |
| Trust | 67% (solid) |
| Long term | 60% (mixed) |
| Aspect | Semi-sextile, 30° apart |
| Elements | Water and Fire |
| Modality | Cardinal and Fixed |
| Ruling planets | the Moon and the Sun |
These signs approach life from genuinely different angles. Not impossible, and plenty of couples do it, but it takes deliberate compromise rather than natural fit.
The aspect: Semi-sextile
Neighboring signs sit next to each other on the wheel but share no element or modality. There is a familiarity here that can be misleading, because the underlying priorities are quite different.
Water and Fire
Fire burns bright and moves on. Water runs deep and holds on. The pace difference is the whole story.
Cardinal and Fixed
Cardinal starts, fixed sustains. One opens the door and the other keeps it open, which is a genuinely functional split.
Ruling planets
Cancer is ruled by the Moon and Leo by the Sun. In traditional astrology the relationship between two ruling planets colours everything above it, which is why two pairs with the same element and aspect can still feel completely different in practice.
What works
- Enough overlap in daily rhythm to live alongside each other easily.
- Water gives fire depth. Fire pulls water out of its own head.
Where it snags
- The differences are subtle enough to get mistaken for someone being difficult on purpose.
- Fire's bluntness lands hard on water, and water's withdrawal reads to fire as punishment.
- Cardinal wants to change course, fixed has already committed. That fight recurs.
Cancer in relationships
Cancer builds a relationship into a home, sometimes before checking whether the other person wanted to move in. Care is the primary love language, delivered practically. The difficulty is that Cancer withdraws rather than confronts, and a partner who misses that signal will not know anything is wrong until it is.
Needs: Emotional safety, and reassurance offered before it is asked for. Gives: Deep loyalty and a genuine sense of being looked after.
Leo in relationships
Leo loves generously and out loud. Affection is public, warm, and slightly theatrical, and Leo genuinely enjoys making a partner feel like the most interesting person in the room. The vulnerability underneath is real: Leo needs to be appreciated, and reads sustained indifference as rejection.
Needs: Appreciation that is spoken, not assumed. Gives: Warmth, generosity, and total commitment once given.
Cancer and Leo in love
Chemistry scores 58% and long-term fit scores 60%. Those two numbers sitting close together suggests a pairing that feels roughly the same at year three as it did in month three, for better or worse.
Cancer and Leo as friends
Friendship leans on communication and trust, scoring 58% and 67% here. Communication is the weaker link, so this friendship usually needs a shared activity to organise itself around rather than relying on conversation alone.
Frequently asked questions
Are Cancer and Leo compatible?
Cancer and Leo score 62% overall, which falls in the hard mode band. These signs approach life from genuinely different angles. Not impossible, and plenty of couples do it, but it takes deliberate compromise rather than natural fit.
What is the biggest challenge for Cancer and Leo?
The differences are subtle enough to get mistaken for someone being difficult on purpose. Their lowest score is chemistry at 58%, which is usually where the friction shows up first.
Do Cancer and Leo make a good long-term match?
Long-term fit scores 60%. That is workable rather than effortless. It holds up when both people name the differences early instead of waiting.
What zodiac aspect do Cancer and Leo form?
They form a semi-sextile, 30° apart on the zodiac wheel. Neighboring signs sit next to each other on the wheel but share no element or modality. There is a familiarity here that can be misleading, because the underlying priorities are quite different.
More Cancer pairings
- Cancer and Gemini 64%
- Cancer and Virgo 85%
- Cancer and Libra 61%
- Cancer and Scorpio 90%
- Cancer and Sagittarius 61%
- Cancer and Capricorn 74%
- Cancer and Aquarius 63%
- Cancer and Pisces 90%
More Leo pairings
- Leo and Gemini 85%
- Leo and Virgo 64%
- Leo and Libra 85%
- Leo and Scorpio 59%
- Leo and Sagittarius 90%
- Leo and Capricorn 63%
- Leo and Aquarius 74%
- Leo and Pisces 61%
