big three calculator: your sun, moon and rising
your big three are your sun sign, your moon sign and your rising sign. your sun is who you are at your core. your moon is how you feel when nobody is watching. your rising is the first thing people see when they meet you.
to find them you need your birthday. add your birth time and city and you get your rising too. type your birthday below and we work out all three for free in about a minute.
what are the big three in astrology?
your birth chart is a picture of the sky at the moment you were born. it has ten planets and twelve signs in it, which is a lot. the big three are the three parts that say the most about you, so they are where everyone starts.
- sun sign: your core self, your ego, what lights you up. it is the sign you already know from your birthday.
- moon sign: your feelings, your moods, what makes you feel safe. it is the you that your best friend knows.
- rising sign: your vibe, your style, your first impression. it is the you a stranger meets.
why your sun sign never felt like you
if you have ever read your horoscope and thought "that is not me at all", your moon or your rising is probably louder than your sun. a leo sun with a cancer moon and a virgo rising is a very different girl from a leo with a leo moon and a leo rising.
that is why people say "i'm a scorpio but my moon is in pisces". your big three together explain you way better than one sign ever could.
what you need to find your big three
no birth time? you can still start. your sun and moon work from your birthday. on the few days when the moon changes sign, we tell you it could be one of two signs. ask a parent or check your birth certificate for the time and add it later.
- your birthday: gives you your sun sign, and almost always your moon sign.
- your birth time: needed for your rising sign. the rising changes about every two hours, so the closer to the minute, the better.
- your birth city: needed for your rising sign too, because the sky looks different from different places.
how the big three work together
think of it like this. your sun is the main character. your moon is her inner voice. your rising is her outfit and the way she walks into a room.
when all three are in the same element (fire, earth, air or water), you come across very clear and very strong. when they are in different elements, you are a girl with layers, and people need time to really get you. neither is better. it just explains why some people read you right away and some never do.
what you get in your free chart
your free chart shows your big three, every planet you have and the sign it is in, your main planet (the one that runs your chart) and your astro map. the full reading, the chat and the city names on your map are the paid part.
questions girls ask
can i find my big three without my birth time?
you can find your sun sign and, most of the time, your moon sign from your birthday alone. your rising sign needs your birth time, because it changes about every two hours.
which of the big three matters most?
none of them wins. your sun is your core, your moon is your feelings and your rising is your first impression. most people relate to their moon and rising more than they expect.
is the big three calculator free?
yes. your big three, your placements and your main planet are free. the full reading is paid.
why is my moon sign different on other sites?
the moon changes sign about every two and a half days. if you were born on a day it changed, your birth time decides which sign it is. add your time to get the right one.
for entertainment and self reflection, not advice. updated october 17, 2026.