Online calculation · Western astrology · NASA ephemerides
Natal chart online with interpretation

Planets in signs and houses, the Ascendant, the Midheaven, aspects and elements — with the interpretation on screen and a sign that tells you when a description isn’t about you. Free, no sign-up.

Place of birth
Time of birth
We’ll help you work out your birth time →

Born in a village that isn’t on the list? Two ways out — below the button ↓

Only for the PDF — the caption and name numbers; the natal chart doesn’t depend on your name.

Tick the box — the calculation won’t start without it.

Your birth data isn’t stored: the calculation runs and goes straight back to you. It stays only in your browser — so you don’t have to type it again.

Born in a village that isn’t on the list?

Two ways, both work. The first is to enter the nearest district town or city: within one time zone even 200 kilometres don’t change the signs of the planets — only the Ascendant and houses shift, by about one and a half degrees. If it lands right at the edge of a sign, we’ll tell you after the calculation.

The second, precise one: tap “Coordinates” above the field and paste a point from a map. Right under the field we’ll show which region it is and which town is nearby — so you can check yourself before calculating. What matters here is the time zone, not the kilometres.

Frequently asked questions

What is a natal chart?

The positions of the Sun, Moon and planets for the minute and place of birth: which zodiac signs they’re in, which of the twelve houses, and at what angles to each other (aspects). The Ascendant is the sign that was rising over the horizon, the Midheaven is the highest point of the Sun’s path above the place of birth.

How do I calculate a natal chart for free?

Enter your date, time and city of birth on this page: the calculation is free and needs no sign-up. An interpretation of each planet in its sign and house, the aspects, the Ascendant and the Midheaven — right on screen, each with a sign that tells you it isn’t about you.

Can I calculate a natal chart without a time of birth?

Yes, but not all of it. The signs of the Sun and planets are known from the date; on a day when the Moon changes sign it’s shown as two options. The Ascendant and houses move about one degree every four minutes, so without a time the calculation doesn’t show them rather than assuming noon. If you know the time roughly, the site will tell you what doesn’t change within that window. You can narrow the time down by the dates of life events — on the “Birth time” page.

Why is the city of birth needed?

The city gives the time zone and coordinates. The time zone sets the moment of birth in universal time, and with it the positions of the planets; the coordinates give the Ascendant and houses. After the calculation the site shows which city and time zone it used, so you can check it.

How accurate is the calculation?

Planetary positions follow the NASA JPL DE440 ephemerides, the model of the Solar System by NASA’s Jet Propulsion Laboratory; you can compare them with any ephemeris. Houses use the Placidus system; beyond the polar circle, where it can’t be calculated, Porphyry is used, and where even that fails, whole signs. The system used is written above the list of houses.

What does “not about you if…” under an interpretation mean?

It’s a sign that the description doesn’t fit you. An interpretation that fits everyone says nothing about a specific person, so every placement has an outcome in which it’s wrong. If the sign matches, this part of the chart doesn’t work for you the way the tradition says.

Is astrology a science?

No. The method has no evidence base, and the academic community doesn’t recognise it. We calculate planetary positions precisely, and offer the interpretations as a language for thinking about yourself — with checks by which you can reject it.

What’s in the full PDF reading?

Every planet in detail, the chart ruler with a check, aspects with advice, your year by transits with the dates of exact aspects, plus Human Design, Jyotish, numerology and the Destiny Matrix — over 40 pages for 799 ₽. Six sample pages are on the “Sample reading” page.

What the calculation will show

  • The chart wheel — the Ascendant on the left on the horizon line, signs and houses counter-clockwise, aspect lines inside the circle.
  • Ascendant and Midheaven — an interpretation by sign and the sign that it isn’t about you.
  • Every planet in its sign and house — the essence in one sentence and a “not about you” sign; the full text with a check against your own past is in the guide, via the link.
  • Chart ruler — the ruler of the sign on the Ascendant: which sign and house it is in.
  • Twelve houses — what each one is responsible for and which planets stand in it.
  • Elements and crosses — by the personal points of the chart — without the distant planets, which are the same for people of the same age.
  • Aspects — with orb and interpretation: what should be noticeable and when the aspect isn’t about you; generational aspects are marked and not interpreted.
  • The Moon’s Nodes — North and South — the axis the tradition reads as the familiar and the unfamiliar.
  • Lilith and Chiron — the mean Black Moon and the minor body Chiron — with a general interpretation and a check; they aren’t included in aspects.

Without the time and city there is no Ascendant, Midheaven or houses: the calculation will say so rather than substitute noon. If the time is known roughly, it will show what doesn’t change within that window — sometimes that includes the Ascendant. Which signs were rising during those hours and whether the sign holds with an error of 15–30 minutes — in the Ascendant calculator.

What a natal chart is made of

Planets — what is at work: the Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. The ten planets →

Signs — how: twelve 30° segments along the Sun’s path, each with its element and cross. The twelve signs →

Houses — where: twelve areas of life counted from the horizon of the place of birth, which is why they need the time and city. The twelve houses →

Aspects — connections: the angles between planets. Conjunction, sextile (60°), square (90°), trine (120°) and opposition (180°). The five aspects →

How we calculate

Planetary positions come from the NASA JPL DE440 ephemeris, the model of the Solar System astronomers calculate with; the numbers on screen can be checked against any ephemeris. The zodiac is tropical, counted from the spring equinox point, as in Western astrology. Houses are Placidus; beyond the Arctic Circle, where it can’t be calculated, Porphyry or whole signs, and the screen names the system used. The lunar Node is the true one. The time zone is taken from the time zone history of the city and date of birth, with the daylight saving time of those years.

Why there’s a “not about you” under every interpretation

A description like “it’s important to you to be valued, but sometimes you doubt yourself” fits almost everyone — psychology calls this the Barnum effect. Such phrases feel accurate but say nothing about a specific person. So every position here has an outcome under which it is wrong. If the sign matches, this piece of the chart doesn’t work for you the way the tradition says, and you can set it aside. If it doesn’t match, that’s not proof yet: astrology has no evidence base, and the checks here are a way not to fool yourself, not a way to believe.

What else to calculate from your chart

  • Which house you’re in now — the house of the year and Jupiter and Saturn through your houses — in the forecast
  • Saturn Return — your exact dates, around ages 29, 59 and 88
  • Retrograde planets — a calendar of turnarounds for 2026–2028
  • Moon phases — new moons, full moons and quarters for 2026–2028 in Moscow time
  • Compatibility — aspects between two people’s planets and three more systems; the summary is free, the full reading — 99 ₽
  • Birth time — narrow down an unknown time using the dates of life events
  • Your 2027 — transits to your chart month by month, a PDF for 499 ₽
  • Solar Return for the year — the chart of the year from your birthday: the main area of the year and a month-by-month plan, a PDF for 799 ₽

Check it — don’t take it on faith

  • Take a period you remember well and compare the reading with it. The future can’t be checked — the past can.
  • Find phrases in the text that could turn out to be false. If there are none and it all “sort of fits” — that’s a horoscope, not a calculation.
  • Look at where two systems disagree. When two agree, it’s a reason to look closer; when they disagree, it’s a reason to take neither on faith.

The full way to check — with our own measurements →

What this reading is. The calculation is made by a program from astronomical data. Human Design, astrology, Jyotish, numerology and the Destiny Matrix are not scientific systems, and the reading is for informational purposes. It is not medical, psychological, legal or financial advice and does not replace consulting a specialist. You make your own decisions.