Get your free birth chart.

See your Sun, Moon, rising sign, and what they mean.

Enter the city or town where you were born. Place data: GeoNames (CC BY 4.0).

Chart options · Whole sign (default)

You can keep the default. Change this only if you prefer another house system.

How the chart divides into twelve areas of life. gives each sign one house; varies house sizes by exact birth time and place. Planets stay put — only house boundaries move.

Dotted terms can be tapped for a plain-English explanation.

Private by default. Your birth details stay in this browser.

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What you're looking at

A birth chart is a snapshot of the sky from where you were born, at the minute you were born. The wheel shows the twelve signs around the outside, the twelve houses inside, and each planet placed at its exact . Three carry most of the story for beginners:

  • Sun — your core identity; the sign most people already know.
  • Moon — your emotional weather; how you feel and recharge.
  • Rising (ascendant) — the sign coming over the eastern horizon as you were born; how people first read you, and what lays out your houses.

The lines across the middle are aspects — angles between planets that astrologers read as conversations: trines flow, squares argue productively, oppositions negotiate.

Prefer to learn the shape of a chart before running your numbers? How to read a birth chart walks the same four steps the results do, and the birth chart in three dimensions covers what the flat wheel leaves out.

How this chart is calculatedCoordinates, house system, and astronomical checks

Every chart lists the exact time and place used, its coordinates, and its . Planetary positions are checked against astronomical reference data.

Read the full methodology →

Questions, answered

What is a birth chart?

A birth chart (or natal chart) is a map of where every planet sat — from your point of view on Earth — at the exact moment and place you were born. It records your Sun, Moon, and Rising signs plus the positions of Mercury through Pluto across twelve houses.

Do I need my exact birth time?

For your rising sign and houses, yes — the ascendant changes roughly every two hours. Without a time, we use 12:00 local civil time as a reference for body positions and omit the rising sign, angles, and houses. Because the Moon can change sign during a day, the result marks the Moon sign as unverified until you add a time. Birth certificates, baby books, and parents are the usual sources.

How accurate is this calculator?

Planetary positions are computed with an astronomical engine and tested against NASA JPL reference data to within a few hundredths of a degree. Historical clock changes from 1970 on are resolved from the IANA time-zone history supplied by your browser or device runtime, and earlier ones from a pinned release of the IANA database, including the older records it keeps apart for places whose clocks later matched another city’s, which its maintainers consider less reliable. A birth from before its place adopted a legal time uses the local mean time of the birthplace itself.

What happens to my birth data?

The entire chart is computed in your browser; the calculator uses no server-side chart API and needs no account. If you save a chart, it stays on this device first; optional account sync uploads saved charts only after you sign in.

Whole sign or Placidus houses — which should I pick?

Whole sign is the oldest system and the friendliest to read: each house is one full sign. Placidus is the most common modern default and divides houses by time of rising, so their sizes vary. Try both — your planets stay put; only the house boundaries move.