Free Birth Chart Calculator

Detailed birth chart interpretations by astrologer Marta Winter

Your birth chart is your personal horoscope, calculated from your birth date, time, and place. It reveals your character, abilities, and the different areas of your life. Enter your birth details below to get your chart and a full interpretation—for free.

Enter your birth details

Name

Birth date

Birth time About your birth time

I don't know my exact birth timeWe'll calculate what doesn't depend on the time and show you what can't be determined without it.

Enter your birth time as precisely as you can, down to the minute: your Ascendant and houses depend on it. Don't know the exact time? Try to find an approximate time—even knowing that it was sometime in the morning is a start. If you have no information at all, check the box above. We'll show you what can be calculated without a birth time and what can't. Close

Country of birth

City or nearest town

Choose your country, then your city. We'll fill in the coordinates and time zone automatically.

City not listed? Enter your birthplace coordinates

Choose the nearest city to set the time zone, then enter the coordinates of your exact birthplace.

Birthplace coordinates

Enter latitude first, then longitude. Separate the two numbers with a comma or a space.

Find your birthplace in a map app.
Select the location and copy its coordinates, for example 40.7128, -74.0060.
Paste them above. We'll convert them into degrees, minutes, and compass directions.

Birthplace time zone

How to find the time zone >

Select your birthplace's time zone in GMT format. For example, Moscow uses GMT +3:00. You can look up the time zone using a public reference such as this time zone map.
If you can't find your birthplace, use the time zone of the nearest major city or town.

A Gift

Give a birth chart as a gift

After calculating a chart, you can save it as a Star Book PDF, with a personalized cover, chart wheel, and full interpretation. Send it to someone you love or print it as a gift.

Personalized cover
Chart wheel
Full interpretation

Enter birth details

What is a birth chart?

What's in your chart and how to read it

A birth chart, also called a natal chart, maps the sky at the moment you were born. It records the positions of the stars and planets as seen from your birthplace at that exact time. The word "natal" comes from the Latin natalis, meaning "birth." This was thought to be the sky a newborn would see on first arriving in the world.

Your birth chart is as individual as your genes or fingerprints. It helps you understand your character and potential, and the abilities and talents fate has given you. It will help you find your path in life, choose the right direction, and avoid the stumbling blocks along the way.

And, of course, it helps you make sense of the present and look ahead to the future.

What can your birth chart tell you?

It describes the impression you make: how other people see you and respond to you.
It explores your character, inclinations, abilities, and talents in detail, including those you haven't discovered or developed yet. It also suggests which abilities to put to use.
It shows how different sides of your character come through in your emotions, conversations, love life, work, and other areas of life.
It reveals your potential: how much energy you have, where to direct it for the best results, and what you can achieve.
It helps you understand yourself, your path, and your purpose in life. Like a GPS, it points you in the right direction and finds the best route around the obstacles ahead.

How to start reading your birth chart

There's a lot to read in a birth chart. Where do you begin? Which parts matter most, and what order should you read them in?

Follow these two steps to get your bearings without getting lost in all the detail.

Step 1: Start with you

Your personality—your sense of self—is at the heart of your birth chart. Begin with these sections:

Elements: your temperament.
The Ascendant: the impression you make and how others see you.
The Sun in its zodiac sign: your character, outlook, talents, and abilities.
The 1st house: your personality and inner self.

Step 2: Find your most important houses

Open "Planets in Houses" and look for the houses that represent the most important areas of your life. Read about:

The house containing your Sun.
Any house containing two or more planets.
The house containing your Moon.
Any house whose area of life matters especially to you.

The rest of the chart adds further detail. Explore it at your own pace, in any order.

What you'll get with our free birth chart

A birth chart created by a team of professional astrologers led by the project's creator, astrologer Marta Winter.
A fresh approach to reading your birth chart online. We've organized it into clear sections, with a visual menu, helpful tips, and explanations, so you can easily find what interests you.
A detailed interpretation from professional astrologers, presented clearly and in an order that's easy to follow. Just enter your birth details.
Free access to every section. No subscription or registration required.

The parts of a birth chart

Each part of your birth chart tells you something different. Here's a quick guide to what you'll find:

Planets in zodiac signs describe your personality and character traits.

Planets in houses describe different areas of life, such as love, work, money, and property.

The Ascendant describes the impression you make and how other people see you.

Aspects add detail to the portrait, revealing more about your character and the way you behave in particular situations.

Let's take a closer look at these parts and what they mean in your birth chart.

Planets in zodiac signs

In astrology, the planets include the Sun, the Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.

Some have a stronger influence than others. The Sun is considered the most powerful, with the Moon in second place. The influence then decreases, from the powerful Sun to distant Pluto, whose effect on our lives is the "weakest."

At the exact time and place you were born, each planet occupied one of the 12 zodiac signs. The "Planets in Signs" section shows you where every planet was and explains what its position means for you.

Together, these placements are the key to a full picture of your character and personality.

Here's what each planet reveals:

The Sun describes your character, abilities, personality, and inner self. When someone asks, "What's your sign?" and you say "Aries" or "Pisces," you're naming the zodiac sign the Sun occupied when you were born.
The Moon governs your emotions, intuition, and subconscious. It reveals your sensitivity and capacity for empathy: how well you sense what others are feeling and share in their experience.
Mercury describes how you think logically, take initiative, communicate, and make connections. It represents your ease with people, ability to learn, and sound judgment.
Venus governs your affections, feelings of love and tenderness, sense of harmony, and attraction to beauty. It also describes your close relationships with family, friends, and loved ones.
Mars governs your energy: how much you have and how you use it. It also describes your decisiveness, drive, tendency toward aggression, active "masculine" side, and sexual desires.
Jupiter describes your outlook and breadth of vision, along with your desire for greater comfort and well-being. It represents your good intentions and optimism, as well as a domineering streak.
Saturn describes your organization, discipline, and ability to cooperate with others.
Uranus describes your desire for freedom and independence. It is the planet of individualism, stubbornness, originality, and breaking with tradition.
Neptune governs the spiritual side of your nature: your ideals, fantasies, illusions, dreams, premonitions, and intuition.
Pluto moves slowly through the zodiac, so its influence extends across a generation. It represents the unknown and the hidden, along with the processes of development on Earth. It describes global trends and the direction of change.

Planets in houses

Look at the birth chart wheel and you'll see two sets of divisions: the zodiac signs and 12 sections called astrological houses.

Each house represents a different area of life:

1st house: personality, character, and habits.
2nd house: money, your attitude toward it, and your financial prospects.
3rd house: communication, friends, and your relationships with them.
4th house: home, property, and running a household.
5th house: love, interests, entertainment, hobbies, and relationships with children.
6th house: work, your capacity for work, relationships with coworkers, and health.
7th house: marriage, romantic relationships, and business partnerships.
8th house: spirituality and religion.
9th house: philosophy, your outlook on life, and higher education.
10th house: career, achievements, status, and your place in society.
11th house: friends, your closest social circle, and plans for the future.
12th house: the subconscious, intuition, and hidden motives.

One house in your birth chart may contain no planets, while another contains one, two, or more. Their positions reveal what's happening in the areas those houses represent: work, career, love, and the rest of your life.

Select a house in your chart to see which planets were there when you were born and read a detailed explanation of what they mean.

The Ascendant: your rising sign

The Ascendant, or rising sign, is the zodiac sign that was rising above the horizon when you were born. It marks the starting point of your birth chart. Its importance makes it one of the first things to look at when you begin reading your chart.

Your Ascendant influences how you want to be seen, how you present yourself, and how you look and behave around other people. In essence, it describes your public image—your "social mask."

The four elements

The elements in your birth chart govern your temperament. The balance between them creates your distinctive emotional makeup.

Fire, Earth, Water, and Air form the emotional backdrop to your character. How much of your temperament is sanguine? How much is melancholic, phlegmatic, or choleric? The Elements diagram shows those proportions, and the explanations beneath it tell you what they mean for you.

Ancient astrologers began reading a birth chart by examining its elements. They were convinced that the elements formed the foundation of the whole chart.

Planetary aspects

An aspect is the relationship between the positions of two planets in your birth chart. It has its own influence on the chart. For example, the Sun may have been close to Venus when you were born. That aspect is called a "conjunction," and it adds particular traits to your character.

Aspects add individuality and detail to your chart. They help explain the finer points of how the planets affect your character and destiny.

Your chart includes these aspects:

Conjunctions: the strongest aspects, with a powerful influence on your chart.
Harmonious aspects—trines and sextiles: favorable influences that make life easier.
Challenging aspects—oppositions and squares: influences that bring difficulties and obstacles.

Birth chart guide: houses, rising signs, aspects, and elements

Explore each planet in each house, all 12 houses, rising signs, planetary aspects, and the elements. Each topic has its own guide, so you can learn about your chart without running a calculation.

Explore the birth chart guide

Planets in Houses: 120 InterpretationsA detailed reading of each of your 10 planets in the house it occupies in your chart.Astrological Houses: All 12 Areas of LifeFrom personality and money to marriage, career, and the subconscious – what each of the 12 houses means in its own right.The Ascendant: First ImpressionsHow people see you from the very first moment, independently of your Sun sign.Aspects: How Planets Work TogetherConjunctions, harmonious aspects, and challenging aspects for all 55 pairings of the planets and Ascendant.Elements and Modalities: Your TemperamentWhat it means to have an abundance of Fire, Water, Earth, or Air in your chart – or hardly any at all.

Planets in zodiac signs: what each planet reveals

Each planet reveals a different side of you: the Sun describes your character, the Moon your emotions, Venus your love life, and Mars your drive. Choose a planet to explore its role in your birth chart.

The Sun in the signs: character and personalityThe Sun determines your zodiac sign and the core of your personality: your main traits, strengths, and way of expressing yourself. Its sign reveals what you draw on when you do things your own way.The Moon in the signs: emotions and your inner worldThe Moon governs your emotions, familiar reactions, and sense of security. Its sign helps explain what soothes you and what you need from emotional closeness.Mercury in the signs: thinking and communicationMercury describes how you think, learn, and put your thoughts into words. Its sign reveals your style of communication and decision-making.Venus in the signs: love and valuesVenus describes how you love, what you value in people, and what brings you joy. Its sign helps you understand what you expect from relationships.Mars in the signs: energy and actionMars represents your will, energy, and way of taking action. Its sign shows how you go after what you want and respond to obstacles.Jupiter in the signs: luck and growthJupiter points to opportunities, support, and room to grow. Its sign reveals where you find it easier to broaden your horizons and feel confident.Saturn in the signs: responsibility and masterySaturn describes responsibility, boundaries, and growing up. Its sign shows where patience develops into mastery over time.Uranus in the signs: freedom and changeUranus reveals your desire for freedom, change, and unconventional solutions. Its sign shows where following your own path matters most to you.Neptune in the signs: intuition and dreamsNeptune is connected with intuition, dreams, and ideals. Its sign reveals where you're especially sensitive to the world around you and easily inspired.Pluto in the signs: transformation and hidden strengthPluto describes deep change and hidden reserves of strength. Its sign shows where you can rebuild and find new strength after a crisis.

Birth chart questions, answered

What is a birth chart, and what does it tell you?

A birth chart, also called a natal chart, is a map of the planets at the moment you were born. Think of it as your personal astrological passport. It reveals your character, talents, strengths, and weaknesses, and points you toward favorable paths in life. Unlike a horoscope based only on your zodiac sign, it takes all the planets, houses, and aspects into account, giving you a much more precise and individual picture.

How is a birth chart different from a zodiac sign horoscope?

A zodiac sign horoscope uses your birth date to describe everyone born under the same sign. A birth chart is calculated for one person, using their birth time and place as well. It examines all 10 planets in the zodiac signs, the 12 astrological houses, and the aspects between the planets. Two people with the same Sun sign can therefore have very different birth charts—and very different personalities.

How do I calculate my birth chart?

Fill in the form at the top of this page with your name, birth date, exact birth time, country, and city. Select "Calculate my birth chart" to generate your chart and its full interpretation. It's free, with no registration or subscription. You'll see each planet's zodiac sign and house, the aspects between planets, and an interpretation of your Ascendant.

What if I don't know my exact birth time?

Try asking a parent or checking your birth certificate; in some countries, the time is recorded on it. Even an approximate time is helpful. If you can't find any information, select "I don't know my exact birth time" in the form. We'll calculate what doesn't depend on the time and clearly show what can't be determined without it. Your Ascendant and houses require a birth time.

What will I see in my completed birth chart?

You'll see a chart wheel with the planets and zodiac signs, along with detailed interpretations. "Planets in Signs" explores your personality. "Planets in Houses" covers areas such as love, career, money, and health. "Houses in Signs" describes how you approach each area of life. "Elements" explains your temperament, and "Aspects" adds detail about your behavior and habits. The interpretations are written by an astrologer and open right on the page, with no registration required.

What's the difference between planets in signs and planets in houses?

They show two different sides of your birth chart. Planets in zodiac signs describe your personality: how you feel, think, love, and act. Planets in houses show where those qualities come into play—in work, family, money, relationships, or creativity. For example, Venus in Taurus describes how you love; Venus in the 2nd house shows how love and relationships connect with your possessions and values.

What are aspects in a birth chart?

Aspects are the angles between planets in your birth chart. At certain angles, the planets "talk" to each other, strengthening or holding back each other's influence. Harmonious aspects—trines and sextiles—describe natural talents and things that come easily. Challenging aspects—squares and oppositions—reveal areas of inner conflict that also hold great potential for growth. These are the details that make your chart individual.

What is the Ascendant, and why does it matter?

The Ascendant, or rising sign, is the zodiac sign that was rising above the horizon when you were born. It governs your appearance, the way you carry yourself, and the first impression you make. A common way to put it is that the Sun describes who you are inside, while the Ascendant describes how you appear on the outside. This helps explain why two people with the same Sun sign can behave very differently and make different impressions. The rising sign changes about every two hours, so your birth time is important for calculating it accurately.

How accurate is this online birth chart?

The planetary positions are calculated using modern astronomical ephemerides. The accuracy of your houses, Ascendant, and aspects also depends on how accurately you enter your birth time and place. Astrologer Marta Winter wrote the interpretations using classical astrological sources.

Is the birth chart really free?

Yes. The calculation and full interpretation are free, with no registration, subscription, or payment required. You'll receive Marta Winter's interpretations of the planets, houses, aspects, and elements. You can calculate as many charts as you like—for yourself, friends, and family.