Why convert KMZ to STL?
KMZ is a geographic format storing placemarks, lines, polygons, and image overlays in XML - none of which have 3D surface geometry. STL is a bare triangle mesh used by 3D printers and slicers, storing surface geometry only with no geography, textures, or color data. The only narrow exception is a KMZ that bundles a COLLADA 3D model inside the ZIP.
How to convert KMZ to STL
Blender OPEN-SOURCE
For KMZ files containing a .dae 3D model: rename the .kmz to .zip, extract the .dae, import into Blender via File > Import > Collada (.dae), then export via File > Export > STL.
Programs that convert KMZ
About these formats
.KMZ
Keyhole Markup Language Zipped (Google Earth)
A KMZ file is a ZIP-compressed Google Earth map - it holds placemarks, routes, polygons, image overlays and sometimes 3D models in one portable package. Open it with the free Google Earth…
Open .KMZ details →
.STL
Stereolithography / Standard Tessellation Language file
An STL file is a 3D model that describes a shape as a mesh of triangles. To view it, use Microsoft 3D Viewer (Windows) or Quick Look (macOS). To 3D-print it, open it in a slicer like…
Open .STL details →Quality & what to watch
- Most KMZ files from Google Earth or Google My Maps contain only map features - pins, lines, area boundaries - with no 3D mesh; they cannot be converted to STL.
- STL stores no color, texture, or material data; any textures on the original model are lost in the export.
- Geometry extracted from a 3D-model KMZ may have non-manifold edges or missing faces and may need repair before a slicer will accept it for 3D printing.
Frequently asked questions
Can I use an online converter for KMZ to STL?
My KMZ has a building in it - can that become a 3D print?
.dae from inside the KMZ (rename to .zip and unzip), import into Blender, fix any geometry issues, then export as STL; the geometry may need significant repair before a slicer accepts it.
