How to Use Google Maps to Create a KML File

The Google Maps KML file inserts lines, polygons, markers and labels to a Google Map. While you can learn to create KML programs, you can also build your map using Google Maps, then download the corresponding KML file for later use. Sign in to your Google account, or create a new free account before creating your map.

Instructions

1. Click "Maps" on the top-left menu from your Google homepage.

2. Click "My Places," then "Create a new map."

3. Navigate to your desired location, use the editing tools on the top-left corner of the map window to create a custom map, then click "Done."

4. Click on the "Link" icon on the upper-right corner of the map window, then copy the URL from the "Paste link in email or IM" box.

5. Open a new browser window and paste the URL in the address bar, type "&output=kml" at the end of the address, without quotation marks, then press enter. The corresponding KML file automatically downloads to your computer.