Zodiac Signs
How a placement expresses itself through the 12 signs.
Explore signs →Calculate your natal chart
Free Birth Chart Calculator
Your Birth Chart, Explained.
Calculate your natal chart from your birth date, time and place. Explore your Sun, Moon, Rising sign where available, planets, houses and aspects, then see how they connect in a personalized reading.
- Planetary positions from professional ephemeris data
- No birth time? We leave out what needs it — no guessing
- Transparent methodology, including the house system
Calculate your birth chart
Free. Takes about thirty seconds.
What is a birth chart?
A birth chart, also called a natal chart, is a map of the Sun, Moon, planets and astrological houses for the time and place you were born. GetBirthChart calculates those positions from your birth date, birth time and location, then explains how the placements and aspects connect.
Example birth chart · 14 Jun 1996 · 04:12 · Europe/Lisbon timezone · synthetic fixture · 1.13.0 · no customer data
Jump to sample chart detailsStart with the Big Three · Sample chart
Start with the Big Three
In Western astrology, the Sun, Moon and Ascendant are commonly called the Big Three. This synthetic chart was calculated with GetBirthChart’s gbc-astro engine v1.13.0. No customer data is used.
Core identity
Sun in Gemini · 2nd House
Curious, quick, and wired for language — you understand life by exploring it and putting it into words.
Emotional pattern
Moon in Gemini · 1st House
Your emotional pattern is quick, observant, and closely tied to how you meet the world.
First-contact style
Taurus Rising · 1st House
You lead with grace and an instinct for balance — people read you as fair, considered, easy to be with.
From placements to meaning
Your chart is more than a list of placements.
We connect planets, houses, and aspects to reveal the patterns shaping how you feel, relate, and act.
Read the chart
Placements, houses, and angles.
Find the connections
Reinforcement, tension, and repeating themes.
Turn them into insight
Clear language grounded in your chart.
Moon trine Saturn
Emotional steadiness
Moon square Mars
Pressure beneath the surface
What's in a birth chart?
Five layers work together to describe your chart. Explore the key components and see how they combine into your unique chart.
Planets
What part of you is acting — identity, emotions, communication, love and drive.
Explore planets →Houses
Where in life a placement shows up — relationships, work, home, identity and more.
Explore houses →Aspects
How different parts of the chart interact — flow, tension, intensity and balance.
Explore aspects →Placements
Where planet + sign + house come together into a specific chart pattern.
Browse placements →Ask Your Chart
Ask AI About Your Birth Chart
Get clear answers about love, work, emotions, timing and recurring patterns — from how placements, houses and aspects interact, not from each placement on its own.
Calculate
Your chart is computed from your birth date, time and place.
Understand
See how your Sun, Moon, Rising, planets, houses and aspects work together.
Ask AI
Ask in your own words. Answers come from the whole chart — how placements, houses and aspects interact — not from each placement alone.
Create your chart & ask AI →
Private · Secure · Based on your chart
GetBirthChart
Answers from your chart
Ask in your own words. I look at how placements, houses and aspects interact — not just what each one means on its own.
Why is commitment difficult for me?
Your Venus sits square Saturn — closeness and caution are wired together. You crave depth but tend to test people before letting them in.
Why this · Venus square SaturnWhat does my chart say about career?
With Saturn in your 10th house, recognition tends to come later — but it lasts. You're built for mastery, not quick wins.
Why this · Saturn · 10th houseTools to explore
Calculate a chart, compare two people, or see your year ahead — each path starts free.
Explore your full natal chart
Planets, houses and aspects from date, time and place.
Compatibility & Synastry
Compare two charts, then ask AI about the relationship.
Yearly Forecast
Annual transits and Solar Return for a selected year.
Big Three Calculator
Sun, Moon & Rising — the fast portrait.
Focused calculators: Moon sign · Rising sign · Venus sign · Mars sign
Questions, answered
What if I don't know my birth time?
Rising sign, houses and chart angles require an accurate birth time, so GetBirthChart leaves them out rather than guessing. You can still explore Sun, Moon and other planetary placements that do not depend on exact time, and add a birth time later if you find one.
Is astrology scientific — and do you make predictions?
Astrology isn't a science and we don't present it as one. We treat it as a reflective language — a structured mirror for thinking about yourself. We avoid fear-based and deterministic predictions; placements are tendencies you may recognize, and you stay the author of your life.
Is birth data private?
Your birth details are used only to compute your chart. We treat them as personal and never sell them.
Ready to see what your birth chart reveals?
Three details. Two minutes. Get your birth chart and a personalized AI reading grounded in your unique placements.