Birth chart calculator with your rising sign
Get your birth chart with the wheel and plain-English notes — including your rising sign, Moon sign and transits.
How does the astrology calculator work?
- Choose what you want to check: your birth chart, synastry, a composite chart, transits, your solar return or sky events.
- Enter your date of birth and pick the place from the list. The time is optional: an exact time, a time window or a part of the day.
- The calculator applies your birthplace's time zone and daylight saving time for that day and takes planetary positions from NASA JPL ephemerides.
- Your result shows the chart wheel, your big three, the planets in signs and houses, and the aspects — each with a short explanation.
You get the full result for a limited number of people: 5 without an account and 10 with a free account, in a rolling 30-day window. Above the limit the calculator still works, but shows part of the result.
Ready astrology reports
The calculator shows where the planets stood. The report explains what that means for you — in a single PDF that stays with you on any device.
Free birth chart calculator — what you can calculate
A birth chart (natal chart) records where the Sun, the Moon and the planets were at the moment you were born, as seen from your place of birth. Numato draws it as a chart wheel and tables, with a short plain-English note on every element.
- Birth chart — your big three and the MC; planets from Mercury to Pluto, Chiron, the lunar nodes and Lilith in signs and houses; aspects; elements and modalities; your chart ruler and dignities.
- Synastry and composite chart — two charts compared, and one shared chart for the couple.
- Transits and returns — transits for a period you choose, solar and lunar returns, progressions, solar arc and a returns calendar.
- Sky events and eclipses — new and full moons, retrograde planets and eclipses in your time zone.
What is a rising sign?
Your rising sign, or Ascendant, is the zodiac sign that was rising on the eastern horizon when you were born. It sits on the left of the chart wheel, opens the 1st house and describes first impressions and how you approach the world. It changes sign roughly every two hours and moves on average about 1° every 4 minutes, so it needs your exact birth time and place.
The MC (Medium Coeli, or midheaven), the highest point of the zodiac at your birth, stands for your career direction and what you want to be known for.
Sun, Moon and rising sign: your big three
Your big three are the Sun, the Moon and the rising sign — the three most important points of the chart. Your Sun sign is the one from horoscope columns; the other two complete the picture.
- Sun — your sense of self: what drives you and where you want to be yourself.
- Moon — emotions and needs: what you need to feel safe.
- Rising sign — first impressions and how you approach the world.
For example, someone born on July 4, 1995, at 9:20 a.m. in New York has the Sun at 12° Cancer, the Moon at 26° Virgo and 27° Leo rising.
The 12 houses in your birth chart
The houses divide the chart into 12 areas of life; a planet's house shows where its theme plays out.
| House | What it describes |
|---|---|
| 1st | You and the way you start things |
| 2nd | Money, resources and self-worth |
| 3rd | Conversations, learning, siblings and your immediate surroundings |
| 4th | Home, family and roots |
| 5th | Creativity, joy, romance and children |
| 6th | Daily work, habits and health |
| 7th | Partnership and close one-to-one relationships |
| 8th | Shared money, trust and deep changes |
| 9th | Travel, studies and beliefs |
| 10th | Career, goals and how others see you |
| 11th | Friends, groups and plans for the future |
| 12th | Time alone, rest and what is hidden |
Why your place of birth matters
Charts are calculated in Universal Time (UTC), so your local birth time is converted using your birthplace's time zone and daylight saving rules for that day. New York was on daylight saving time (EDT, UTC−4) on July 4, 1995, so 9:20 a.m. there was 13:20 UTC — an hour's mistake can change the rising sign. These rules have changed over the years, and most of Arizona doesn't observe daylight saving time; the calculator takes them from the place's history. Enter the town where you were born.
Birth chart without birth time
Don't know your birth time? You still get the planets in signs and the aspects between them; the calculator doesn't guess your rising sign or houses. If the Moon changed sign that day, you see both possible signs. Know the time roughly? Choose a time window or a part of the day — the result shows which parts are certain.
How we calculate
- Planetary positions from NASA JPL ephemerides (DE440), checked against established reference ephemerides.
- Tropical zodiac and Placidus houses by default; the settings offer the sidereal zodiac and other house systems.
- The Numato team writes the explanations in plain language: they describe tendencies, they don't predict events.
Where our data comes from is described on the Data sources page.
Astrology and numerology in one place
The same form also calculates numerology: your Life Path and the other numbers in the numerology calculator. In Numato Plus, Zumana, an AI astrologer and numerologist, brings both together in conversation and in your daily forecast.
Privacy
Your birth time and place are used only for the calculation. We don't pass them to the AI provider — Zumana only receives the calculated result.
Frequently asked questions about the astrology calculator
What are my big 3 signs?
Your Sun sign, Moon sign and rising sign. Enter your date, time and place of birth and the result shows all three together; without a birth time you get the Sun and Moon only.
How is the rising sign calculated?
Your local birth time is converted to Universal Time with your birthplace's time zone and daylight saving rules for that day. From that moment and the place's coordinates, the calculator finds the zodiac degree rising on the eastern horizon — your Ascendant, whose sign is your rising sign.
Why do I need my exact birth time?
Because the rising sign moves on average about 1° every 4 minutes, and the houses move with it — near the edge of a sign, a few minutes decide it. The planets move far more slowly.
Where can I find my birth time?
Check your long-form birth certificate: some US states record the time of birth on it, and your birth state's vital records office can send a copy. Hospital records or a baby book help too. In England and Wales the time usually appears only for multiple births; Scottish certificates include it.
Can I get my birth chart without my birth time?
Yes. You get the planets in signs and the aspects, but no rising sign or houses. If you know the time roughly, choose a time window or a part of the day.
How do I find my Moon sign?
Enter your date of birth: the Moon changes sign on average about every 2.3 days, so the date is often enough. If it changed sign that day, you see both possible signs, and your birth time settles it.
Which zodiac and house system does the calculator use?
The tropical zodiac and Placidus houses by default. In the settings you can switch to the sidereal zodiac with an ayanamsa such as Lahiri, Fagan-Bradley, Raman or Krishnamurti, and choose another house system: Whole Sign, Koch, Equal, Porphyry and more.
Why is my rising sign different on another site?
Usually the time: a wrong time zone or daylight saving time shifts the chart by an hour, and near a sign's edge minutes matter. Other causes: a sidereal zodiac (positions shift by about 24°) or a nearby city instead of your birthplace. A house system moves the houses, not the rising sign. Your result shows which zodiac and house system were used.
Is the astrology calculator free?
Yes, the calculations are free. You get the full result for a limited number of people: 5 without an account and 10 with a free account, in a rolling 30-day window. Above the limit the calculator still works, but shows part of the result. Numato Start and Numato Plus remove the limit on full results.
What is the difference between synastry and a composite chart?
Synastry compares two charts: how one person's planets fall in the other's chart. A composite chart is one shared chart made from the midpoints of both — it describes the relationship as a whole.
What is a solar return?
The chart for the moment the Sun returns to its birth position — every year around your birthday. It describes the themes of your year from birthday to birthday.
Is astrology a science?
No. Astrology is not supported by scientific research — it is a symbolic system of description. The chart is calculated precisely; treat the interpretation as a starting point for reflection, not a prediction.