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 (with your rising sign and Moon sign), 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 — you can give an exact time, a time window or a part of the day.
- The calculator works out the time zone and daylight saving time in force at your place of birth on that day, and calculates planetary positions from NASA JPL ephemerides.
- Your result shows the chart wheel, your big three (Sun, Moon, rising sign), the planets in signs and houses, and the aspects — each with a short explanation. 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.
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 as readable tables, with a short plain-English note on every element — no jargon.
- Birth chart — your big three (Sun, Moon and rising sign), planets in signs and houses, aspects, the balance of elements and modalities, and your chart ruler.
- Rising sign and Moon sign — the same form: the rising sign needs your birth time and place, the Moon sign often only your date.
- Synastry and composite chart — two charts compared, and one shared chart for the couple.
- Transits — how today's planets touch your birth chart over a period you choose.
- Solar return and lunar return — the chart for your year from birthday to birthday and for the coming month.
- Progressions, solar arc, returns calendar — for people who already know astrology.
- Sky events and eclipses — new and full moons, retrograde planets and eclipses with dates in your time zone.
How to find your rising sign
Your rising sign (ascendant) is the zodiac sign rising on the eastern horizon at the moment you were born. It changes about every two hours, so it needs your birth time and place. The calculator picks the time zone and daylight saving rules in force at that place on your birthday — you don't have to look up UTC yourself.
Birth chart without birth time
Don't know your birth time? You can still calculate your chart. Without a time, the calculator shows the planets in signs and the aspects between them, and does not guess your rising sign or houses. If the Moon changed sign that day, you see both possible signs. If you only know the time roughly, choose a time window or a part of the day — the result tells you which parts are certain.
How we calculate
- Planetary positions from NASA JPL ephemerides; we check the engine against established reference ephemerides.
- Time zone and daylight saving time from the history of your place of birth — including old dates and border changes.
- Tropical zodiac and Placidus houses (as on astro.com); you can pick one of 12 house systems in the settings.
- 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 from your birth date and name in the numerology calculator. In Numato Plus, Zumana — an AI astrologer and numerologist — brings both together in one 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
How do I find my rising sign?
Your rising sign is the zodiac sign rising on the horizon at the moment you were born, so you need your date, time and place of birth. Enter them in the form and the calculator works out the time zone and daylight saving time for that day. You'll see your rising sign next to your Sun and Moon.
Can I get my birth chart without my birth time?
Yes. Without a time, the calculator shows the planets in signs and the aspects, but not your rising sign or houses, because those depend on the time. If you know the time roughly, choose a time window or a part of the day — the result shows what is certain.
What does a birth chart show?
A birth chart shows where the Sun, the Moon and the planets were when you were born: in which signs and houses, and which aspects they formed. Numato draws the chart wheel and adds a short explanation of every element.
How do I find my Moon sign?
Choose the birth chart and enter your date of birth. The Moon changes sign about every 2.5 days, so the date is often enough; if it changed sign that day, the calculator shows both possible signs, and your birth time settles which one is yours.
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.
How accurate are the calculations?
Planetary positions come from NASA JPL ephemerides, and the time zone and daylight saving time come from the history of your place of birth. Accuracy depends mainly on your birth time — with an uncertain time, the result tells you which elements may change.
What is the difference between synastry and a composite chart?
Synastry compares two charts: it shows how one person's planets fall in the other's chart. A composite chart is one shared chart for the couple, calculated from the midpoints of both charts — it describes the relationship as a whole.
What is a solar return?
A solar return is the chart for the moment the Sun returns to its position at your birth — every year around your birthday. It describes the themes of your year from birthday to birthday.