Some sites claim to convert DWG to KML but actually just convert the file to a low-resolution image (PNG) wrapped in a KML shell. You lose all vector data. The file size will drop from 10MB to 100KB.
The simple solution seems to be a quick web search for a "dwg to kml online converter free link." But finding a tool that is genuinely free, secure, and accurate is harder than it looks. Many so-called "free" converters limit file sizes, add watermarks, or store your proprietary data on unsecured servers. dwg to kml online converter free link
MyGeodata is not a sketchy file dropper; it is a legitimate GIS cloud platform. It handles the coordinate system issue better than any other free tool. Some sites claim to convert DWG to KML