Birth Chart Studio
Ten planets, your rising sign, the midheaven and all twelve houses, worked out from the exact moment and place you were born and drawn as a wheel you can read.
Private by design: your birth details never leave your browser. The chart is worked out on your device, and nothing reaches us or gets stored.
What a Birth Chart Shows
A birth chart is a snapshot of the sky at the moment and place you were born, drawn as a wheel. It places ten bodies (the Sun, Moon and eight planets) in the twelve signs, marks the rising sign and midheaven, and divides the wheel into twelve houses. Read together, these give a far more specific picture than a Sun sign alone.
Start with your Big Three: the Sun, Moon and rising sign. The Sun describes what you are growing toward, the Moon what you need in order to feel safe, and the rising sign how you meet the world. The table of positions below them shows every planet's sign and house, and the planet-by-planet reading explains what each one means in context.
What You Need to Get It Right
Three things: a date, a time and a town. The date fixes the planets in their signs. The time fixes the rising sign and houses, because those turn with the Earth. The town fixes the geometry of the horizon. The place search also works out the time zone, including any daylight saving rules in force on your birth date, so you do not need to convert to UTC by hand.
If you do not know your birth time, a birth certificate, hospital record or a family member's memory may help. If it is truly lost, you can still read the planets in signs with confidence; treat the rising sign and houses as unknown rather than guessing.
How the Chart Is Computed
The Sun's position uses the standard apparent-longitude series. The Moon uses the principal terms of the ELP lunar theory as tabulated by Jean Meeus, accurate to roughly ten arcminutes. The eight planets come from mean orbital elements with linear rates (the set published by JPL), solved for position with Kepler's equation. Accuracy is a few arcminutes for the inner planets and within about a degree for the outer ones, which is far finer than the thirty-degree width of a sign.
Houses use the Placidus system, the most common in Western astrology. Placidus cannot be defined above the polar circles, so charts from those latitudes fall back to equal houses and say so. Retrograde planets are marked with the ℞ symbol.
Limits Worth Knowing
This chart is built for reading, not for professional work such as birth-time rectification, which needs arc-second ephemerides. Planets that sit within a degree or two of a sign or house boundary are worth checking against a second source, and a birth time off by a few minutes can move a house cusp. The interpretations are traditional and general by design. They describe what a placement is usually taken to mean, not what will happen to you.
Where to Go After Your Chart
Open the Learn section and look up each planet and house that appears in your chart. The Astrology Guides include a four-week plan for reading your chart and a guide to what you can still determine without a birth time. If you are curious about a relationship, put two birthdays into the Love Match tool.