Midpoints Calculator
A midpoint is the exact halfway point between two planets — a sensitive spot that fuses both of their meanings. Enter your birth details to find your key personal-point midpoints, led by the Sun/Moon midpoint: the most important one in the whole chart.
We use your city to find the timezone and coordinates, so your local birth time maps to the exact sky overhead.
What is a midpoint?
A midpoint is the precise halfway point on the zodiac between two bodies in your chart. If your Sun sits at 10° Aries and your Moon at 10° Gemini, the point exactly between them — 10° Taurus — is the Sun/Moon midpoint. Astrologers treat it as a sensitive point: a spot that quietly carries the blended meaning of both planets, even though nothing physical is there.
The idea is simple but powerful. A planet says one thing; two planets in aspect say how they argue or agree. A midpoint says something more specific — it names the single degree where two energies fuse into one theme. That fusion is why midpoints feel so personal: they pin a broad planetary pairing to an exact place in your sky.
Why the Sun/Moon midpoint matters most
Of all the midpoints in a chart, the Sun/Moon midpoint is the one astrologers reach for first. The Sun is your conscious identity and will; the Moon is your emotional core and instinctive needs. The point halfway between them is where those two halves of you meet — which is why it’s traditionally called the relationship or marriage point.
It describes the inner blend of head and heart, and the kind of close partnership your whole psyche reaches toward. When someone else’s Sun, Moon, Venus, or angles land right on your Sun/Moon midpoint, classical technique reads it as a sign of a significant bond. That’s why we lead your results with it — it’s the most telling single point on this page.
The classic personal midpoints
There are hundreds of possible midpoints, but a handful between your most personal points carry the most weight. We surface six: Sun/Moon (identity and feeling), Venus/Mars (love and desire), Sun/Venus (self and affection), Moon/Venus (tenderness and warmth), and — when you give a birth time — Asc/MC (your presence and your public direction) and Sun/Asc (your core self and first impression).
Each one is computed from your real planetary longitudes along the shorter arc between the two bodies, then placed in its sign and degree. The numeric badges read in plain degrees so you can spot a midpoint that lands on one of your own planets at a glance.
The 90° dial, in one paragraph
Specialists in Cosmobiology and Uranian astrology often read midpoints on a 90° dial — a clever trick that folds the full 360° zodiac down to a quarter of its size. On that dial the hard aspects (conjunction, square, opposition) all collapse onto the same spot, so a midpoint that’s being “activated” by another planet jumps straight out. You don’t need a dial to use your midpoints — this page gives you the positions directly — but it’s the tool the deep-dive astrologers use to hunt for the tightest, most active midpoint contacts in a chart.
Do I need my birth time?
For the planet-to-planet midpoints — Sun/Moon, Venus/Mars, Sun/Venus, Moon/Venus — you don’t. The planets move slowly enough that your date and birth city pin them down well. But any midpoint that uses the Ascendant or Midheaven needs an exact birth time, because those angles sweep about a degree every four minutes. Add your time and the Asc/MC and Sun/Asc midpoints unlock automatically.
Questions about midpoints
What is a midpoint in astrology?
A midpoint is the exact halfway point on the zodiac between two planets or points. Astrologers read it as a blended energy — a sensitive spot that fuses the meanings of both bodies. The Sun/Moon midpoint, for example, mixes identity with emotion and is the single most-read midpoint in a chart.
Why is the Sun/Moon midpoint so important?
It marks where your conscious self and your emotional inner world meet, so it's often called the relationship or marriage point. Astrologers watch it for clues about close partnership and inner unity — and they note when someone else's planets land right on it, which can signal a powerful bond.
Do I need my exact birth time for midpoints?
For planet-to-planet midpoints like Sun/Moon and Venus/Mars, no — the planets barely move across a day, so your date and city are enough. But any midpoint using the Ascendant or Midheaven (Asc/MC, Sun/Asc) needs an exact birth time, because those points shift roughly a degree every four minutes.
What is the 90-degree dial?
It's a technique from Cosmobiology and Uranian astrology that folds the 360° zodiac down to 90°, so hard aspects (conjunction, square, opposition) all stack at the same spot. On that dial, midpoints jump out clearly — it's how specialists hunt for the tightest, most active midpoint contacts in a chart.
Is this midpoints calculator free?
Yes — no signup needed. Enter your birth date, optional time, and city, and we compute the classic personal-point midpoints from your real planetary longitudes, each with its sign, degree, and meaning. It's one of Lune's free astrology tools.
