A sign this week
A general horoscope example. Interpretations vary and are not individualized predictions.
Free Birth Chart Calculator
Your star sign is only your Sun. A birth chart shows where every planet was the minute you were born — including your Moon and Rising sign.
☉︎Sun: who you are becoming☽︎Moon: what you needACRising: how others see you
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Try South Africa, Chile or 南非 to see country guidance.
Example motion — your chart appears after you submit
Example resultGeneral Sun-sign horoscope
Example readingIllustrative sample · not a personal forecast
What birth chart calculations show
A Sun-sign horoscope is general. A birth chart calculator shows placements derived from your birth details; it does not by itself provide an individualized forecast.
Sample chart reflection
This fictional example shows how someone might use chart placements as reflection prompts. It is not a calculated forecast or a claim about what will happen.
Love: what you need
Example placement
Consider what you value in care and appreciation. A placement does not determine how you behave or what will happen in a relationship.
Career: where effort pays off
Midheaven in Sagittarius · Saturn in house 11
These symbols invite a question: do you feel most alive when learning, sharing an idea, or building something with others? Bring a real work situation to your reflection.
Where to begin with your chart
- SunWhat gives you a sense of purpose?
- MoonWhat helps you feel settled?
- RisingHow do you approach a new situation?
Fill in your details above to explore your placements and their basic meanings.
Questions, answered
It is okay to have questions before you begin. Start with the one on your mind.
Your birth chart
I know my Sun sign — what else does a birth chart add?
A birth chart includes planetary placements based on your birth details. Depending on whether your birth time is known, it may also include time-sensitive details such as the Rising sign and houses. A general horoscope is written for a Sun sign, not your individual chart.
I don’t know my birth time. Can I still use it?
Yes. Choose the unknown-time option. This calculator omits the Moon, exact degrees, aspects, Rising sign and houses. It shows other planetary signs only when they stay in the same sign across that birth date. If you find the time later, enter it to calculate the fuller chart.
Do I need to work out time zones or daylight saving?
No. Just enter the time on your birth record and choose your city. We find the coordinates and the time zone that applied on that exact date.
What can my chart help me with?
A chart gives you a set of traditional symbols to explore alongside your own experience. Start with one placement and ask what it brings to mind about your needs, relationships or work. It cannot establish why you behave a certain way or guarantee what will happen.
Is a natal chart the same as a birth chart?
Yes. Both describe planetary positions for a birth date, time and place. The Sun sign is one part of that chart; the Moon, other planets, Rising sign and houses add different information when the inputs support them.
Is the birth chart calculator free without an email?
Yes. You can enter your birth details and calculate the supported placements without signing in. An optional personal AI reading uses 10 credits and requires sign-in; calculating the basic chart does not.
Which zodiac and house system does this calculator use?
It uses the tropical zodiac and Whole Sign houses. With a known birth time and usable coordinates, it can show the Rising sign and houses. A sidereal or Placidus calculator can display different results because it uses a different convention; that difference alone is not an input error.
Why might my birth chart differ from another site?
First compare the date, AM/PM, selected city and historical time zone. Then compare the zodiac and house system. If your local birth time occurred twice when clocks changed, this calculator asks you to choose the occurrence instead of silently picking one.
About Moonletter
What can I use for free?
You can use the basic tools without an account: draw cards and read their meanings, calculate a birth chart, explore general horoscopes, or reflect on a dream. Sign in with an email code and claim 10 credits per UTC day on your account page. One personal AI reading uses 10 credits. Daily gift credits expire after 30 days; purchased credits never expire. Optional one-time packs cost $9.90 USD for 300 credits, $29.90 USD for 1,200 credits or $59.90 USD for 3,000 credits, with no subscription or automatic renewal.
Who writes my personal reading?
Your personal reading is generated by DeepSeek from the details you choose to share. It is not a one-to-one consultation with a human reader or a substitute for professional advice.
Where does the information I enter go?
When you submit information, it is sent to Moonletter’s server to provide the requested tool. If an AI feature is used, the relevant request is also sent to the configured AI provider, DeepSeek. Your journal stays in this browser. Sign-in email, credit records, and personal answer recovery records are stored on the server; deleting the journal does not delete these server records or copies held by a service provider.