Enter your latitude below, then click on the "Calculate!" button. The EarthDial Calculator will calculate all of the angles and distances that you need to construct the lines on your EarthDial.
To find your latitude and longitude, consult a good map or visit:
CAUTION: This table will not work well for latitudes smaller than 4 degrees. Instead, use the near-equator calculator for EarthDials located close to the equator (less than 14 deg).
In 2016, The Planetary Society’s LightSail program will take the technology a step further.