Free birth chart calculator: Sun, Moon and Ascendant

Who are you under your Sun, Moon and rising sign?

Enter your date, time and city of birth to get your Sun sign, Moon sign and Ascendant (rising sign) for free. The calculation takes about a second and needs no sign-up.

  • Any city in the world
  • Historical time zones
  • No sign-up

Date of birth


A birth certificate usually has it. Without it, the report has no houses or Ascendant.

Can't find it? Choose the nearest larger town.

How does the calculator work?

It converts your local birth time to Universal Time with the historical time zone of your birth city on that date, including daylight saving time. Then it calculates where the Sun and Moon were along the zodiac with Astronomy Engine, accurate to about one arcminute, and which zodiac sign was rising on the eastern horizon: your Ascendant.

The Ascendant changes sign about every two hours, so it needs your birth time. Without it you still get your Sun sign, and your Moon sign unless the Moon changed sign that day.

Example: someone born on Tuesday, 3 April 1990, at 14:30, in Chicago, Illinois, United States has the Sun in Aries, the Moon in Leo and the Ascendant in Leo.

What are the dates of each Sun sign?

The Sun moves into a new sign around the 20th of each month. The exact day and hour shift a little from year to year, so if you were born near the change, use the calculator above: it works from your exact birth time.

SignUsual datesElementRulerArchetype
♈︎ Aries21 March – 19 AprilFireMarsThe Pioneer
♉︎ Taurus20 April – 20 MayEarthVenusThe Builder
♊︎ Gemini21 May – 20 JuneAirMercuryThe Messenger
♋︎ Cancer21 June – 22 JulyWaterMoonThe Nurturer
♌︎ Leo23 July – 22 AugustFireSunThe Performer
♍︎ Virgo23 August – 22 SeptemberEarthMercuryThe Craftsperson
♎︎ Libra23 September – 22 OctoberAirVenusThe Diplomat
♏︎ Scorpio23 October – 21 NovemberWaterPlutoThe Alchemist
♐︎ Sagittarius22 November – 21 DecemberFireJupiterThe Explorer
♑︎ Capricorn22 December – 19 JanuaryEarthSaturnThe Strategist
♒︎ Aquarius20 January – 18 FebruaryAirUranusThe Visionary
♓︎ Pisces19 February – 20 MarchWaterNeptuneThe Dreamer

See what every sign means for your Sun, Moon and rising sign.

Want the full reading?

The natal chart report covers every planet, house and major aspect, with profiles of your Sun, Moon and rising sign, in a PDF of over 30 pages, for 20 crystals (about £1).