Format comparison
KMZ vs GPX: Google Earth vs GPS Tracks
KMZ is Google Earth's portable map archive format. GPX is the universal GPS data exchange format used by Garmin, Wahoo, and virtually every GPS device and app. Both support geographic coordinates and track lines, but with very different semantics.
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Bottom line
Use KMZ for rich Google Earth visualization. Use GPX for GPS device data with native timestamp and elevation support.
KMZ vs GPX: feature comparison
| Feature | KMZ | GPX |
|---|---|---|
| Primary use | Google Earth visualization | GPS data exchange |
| Native timestamp | No | Yes (per track point) |
| Elevation | Via KML altitude | Native (3D) |
| GPS device support | No | Yes (universal) |
| Polygon support | Yes | No |
| Embedded imagery | Yes | No |
KMZWhen to use KMZ
- Google Earth visualization with embedded images
- Maps with rich styling and polygon geometry
- Non-technical user distribution
GPXWhen to use GPX
- GPS device import/export
- Activity tracking (hiking, cycling, running)
- Workflows needing native timestamps per point
Convert between KMZ and GPX
Frequently asked questions
Q.Can I convert KMZ to GPX online?
Yes. Maparz converts KMZ to GPX — upload your .kmz and download a .gpx file compatible with GPS devices.
Q.Can my Garmin device use KMZ files?
No — Garmin devices use GPX format. Convert your KMZ to GPX using Maparz first.