The most reliable free online workflow involves an intermediate step. Since few sites convert DWG directly to KML for free, the standard practice is to convert DWG to DXF first.
The Tool: MyGeodata Cloud
MyGeodata is widely considered the best free online converter for this specific task. It handles the complex geometry of CAD files better than most. dwg to kml online converter free link
If your DWG is sensitive (military, utility critical infrastructure), do not upload to any cloud. Use QGIS (100% free, open source, offline): The most reliable free online workflow involves an
But for speed? The MyGeodata link above is still faster. But for speed
Cause: Your DWG lacks real-world coordinates (it’s drawn near 0,0). Solution: