Your birth chart is a circular map of the solar system, as seen from the Earth, at your time of birth.
To calculate your birth chart, you need three pieces of information:
Once you have these three pieces of information, you are good to go!
There are several very good astrology software packages on the market. In order to get started right away, though, I’m going to show you a couple of free online options.
Astrodienst is one of the oldest and most respected sites in the online astrology community. It’s also the most accurate*. The chart calculation feature is free and requires no registration.
If you have trouble printing the chart from your web browser, try saving the file to your computer, importing it into a word processing or graphics program, and printing from there.
Pro-tip: Always check your chart details for accuracy. It only takes a few moments, and it can be really frustrating when you learn you’ve spent hours reading the wrong birth chart!
Don’t know your time of birth? An accurate birth time gives you a more complete picture, but you can still cast a valid chart without it. You may calculate the chart for either noon or sunrise on your day of birth.
*If you find a discrepancy between these two calculators, and you have triple-checked the birth time and location to make sure they are the same, then astro.com is the correct one.