Free birth chart, Western and Vedic.

What a birth chart is

A birth chart is a map of the sky at the minute and place you were born. It records where the Sun, the Moon and each planet stood against the zodiac, and which part of the zodiac was rising on the eastern horizon. Astrologers read it as a portrait of temperament and tendencies. Crescent treats it as a way to reflect on yourself, not as a forecast of what has to happen.

The positions here are calculated, not looked up from a table. Crescent computes them from planetary theory for the exact moment, using the time zone rules that applied in that place on that date, daylight saving included.

What you get from this calculator

The big three. Your Sun sign is the one most people know. Your Moon sign is often read as your emotional nature, and your rising sign (the ascendant) as the way you meet the world. The Vedic view. Your Moon sign in the sidereal zodiac, which Vedic astrology calls your rashi, plus your nakshatra, the lunar mansion the Moon occupied, and your lagna. The detail. A chart wheel you can tap, a table of every placement with its sign, degree and house, the major aspects between planets, and a check for the three doshas Vedic astrologers look for first.

Why the rising sign needs a birth time

The Sun spends about a month in each sign and the Moon about two and a half days, so a date alone places them. The rising sign moves far faster: a new sign crosses the horizon roughly every two hours. Without a birth time there is no honest way to name it, so the calculator does not guess. If you tick “I don't know the birth time”, it leaves the rising sign and lagna blank, counts houses from the Sun sign (Western) and the Moon sign (Vedic), and tells you if the Moon changed sign or nakshatra during that day. A time from a birth certificate or a hospital record is worth finding.

Western and Vedic: why your signs can differ

Western astrology uses the tropical zodiac, which starts Aries at the spring equinox and so follows the seasons. Vedic astrology uses the sidereal zodiac, which is anchored to the stars. The two lined up about seventeen centuries ago and have drifted apart by roughly 24 degrees since, a gap called the ayanamsa. That is why many people find their Sun one sign earlier in the Vedic chart. Neither is a correction of the other. They measure from different starting points, and Crescent shows both side by side so you can read each on its own terms.

Vedic astrology also leans on the Moon more than the Sun, which is why the nakshatra matters so much there. It is the basis of kundli matching and of the Vimshottari dasha periods. If you want to see how two signs get on before you have anyone's birth details, the sign compatibility pages are a place to start.