Free big three calculator

Find your big three

Your big three are your sun, moon and rising signs — the three placements people feel first. Together they describe your core, your emotional needs and the way you meet the world.

Find my big three
  • Free, no sign-up
  • About a minute
  • Saved only on your device

Before you start

What you’ll need

Three details from your birth certificate or a family member’s memory. It takes about a minute.

  1. 1Required

    Birth date

    Day, month and year.

  2. 2Matters most

    Birth time

    Your rising sign needs a reliable time and place. Your Sun and Moon also need a time check on dates when they change signs.

  3. 3Required

    Birthplace

    City or town — we find its time zone for you.

What are the big three?

Sun: who you are becoming — your drive, your identity and what makes you feel alive.

Moon: what you need to feel safe — your emotional instincts and how you look after yourself and others.

Rising: how you meet the world — first impressions, your style and the way you begin things.

Many people say “I’m a Leo sun, Pisces moon, Libra rising” as a shorthand for themselves. It isn’t the whole chart, but it’s a remarkably good summary.

How the three work together

The interesting part is the mix. Take a Leo sun, Pisces moon, Libra rising: someone who wants to shine and be recognized (Leo), who is deeply sensitive and absorbs other people’s moods (Pisces), and who comes across as graceful and easygoing (Libra). People may see the charm first, the warmth next, and only later how much they feel.

When the three share an element, the personality tends to feel consistent. When they differ, you get more range — and sometimes more inner negotiation.

What you need to find them

Bring your birth date, a reliable birth time and your birthplace. The time and place determine the rising sign. The Sun and Moon can also change signs during a day, so a date alone does not always settle their signs. If the time is unknown, this tool uses an assumed time rather than checking every possible time that day.

Beyond the big three

Your chart has eight more planets, each in its own sign and house. Venus shows how you love, Mars how you go after things, Mercury how you think and talk. Your free chart includes all of them, so once you know your big three you can keep going.

Good to know

Questions people ask

Which of the big three matters most?

They play different roles rather than competing. Many astrologers start with the sun for direction, the moon for needs and the rising sign for approach — and look at how they combine.

Can I find my big three without a birth time?

You can view a chart for an assumed time, but it cannot confirm all three. The rising sign remains unverified; the Sun or Moon may also be uncertain if either changed signs that day. Use a reliable birth time when available.

Why are my big three all in different elements?

That’s common, and it simply means more range: different parts of you run on different fuel. Your full chart shows how the rest of your planets balance it out.

The Cazimi app

Your chart has more to say.

Read every placement in full, see how your houses and aspects play out, and ask anything about your chart. Free to start on iPhone and Android.

Download on the App StoreGet it on Google Play

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Your full chart reading is in the app

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