Enter your birth date, time and place above and this free calculator draws your Chandra kundali (the Moon chart) and your Surya kundali (the Sun chart) side by side, with your Lagna chart beside them when the birth time is known, in North or South Indian style. A table then gives every planet’s house counted three ways: from the rising sign, from the Moon sign and from the Sun sign. Without the birth time you still get both the Moon and the Sun charts, with a note if the Moon or the Sun changed sign that day.
How it works
The planets are worked out once, from the NASA JPL DE440 tables with the Lahiri ayanamsa and the mean node. The three charts then differ only in which sign is taken as the 1st house.
- Lagna chart: the 1st house is the sign rising in the east at birth. It needs the birth time.
- Chandra kundali: the 1st house is the sign the Moon stands in. The 2nd house is the next sign, and so on round the zodiac.
- Surya kundali: the 1st house is the sign the Sun stands in, counted the same way.
The houses are whole signs, one sign to a house, as on every chart tool here.
Reading the result
Brihat Parashara Hora Shastra (ch. 74, verses 7 to 9, Santhanam’s edition) takes the Ascendant, the Moon and the Sun each as a first house: the 2nd, 3rd and later houses counted from the Moon and from the Sun deal with the same subjects as when they are counted from the Ascendant. Each house is then judged by the planets in it and those aspecting it (verses 10 to 14). The table under the charts makes this easy to follow: read across a planet’s row to see where it falls from each of the three.
Transits and the daily horoscope on this site are read from the Moon sign, that is, from the Chandra kundali. When your rising sign and your Moon sign are the same, the Lagna chart and the Chandra kundali are the same chart, and the result says so.
Where traditions differ
Teachers give the three charts different weight. On this site the Lagna chart is the main chart when the birth time is known, and the Chandra kundali takes its place when it is not, as in the free kundali. Brihat Parashara Hora Shastra draws all three together as the Sudarshan chakra and, in ch. 74 verses 19 and 20, reads from that combined chart only when the Sun and the Moon are in separate signs, both different from the Ascendant’s. Our Sudarshan chakra calculator shows that wheel and says whether the condition holds for you.
What it does not do
It does not change any planet’s sign, degree or strength, and it does not draw divisional charts; for those, use the Divisional charts calculator. It makes no prediction. For the house cusps rather than whole signs, see the Bhava chalit chart.
Frequently asked questions
↳ What is a Chandra kundali?
It is your birth chart with the sign of the Moon taken as the 1st house. The planets stay in the same signs; only the counting of houses starts from the Moon. It is also called the Moon chart or Chandra lagna chart.
↳ What is a Surya kundali?
It is the same chart counted from the sign of the Sun, so the Sun's sign is the 1st house. It is also called the Sun chart or Surya lagna chart.
↳ Can I see my Chandra kundali without a birth time?
Yes. It needs only the Moon's sign, which this tool takes at midday when the time is not known. If the Moon changed sign that day, the result tells you the time of the change, because a birth on the other side of it would have a different Chandra kundali.
↳ Why is my Chandra kundali the same as my Lagna chart?
Because your Moon was in your rising sign when you were born. Both charts then start from the same sign and every house matches.
↳ Which chart is used for transits and the daily horoscope?
On this site, the Chandra kundali: the houses a transiting planet passes through are counted from your Moon sign, as in the Sade Sati, Saturn transit and Jupiter transit calculators.
↳ How is this different from the Sudarshan chakra?
The Sudarshan chakra puts the same three charts, from the Lagna, the Moon and the Sun, into one wheel of three rings. This page draws them as three separate charts with a table.