Splügen Pass to Italy 🇮🇹
The Splügen Pass connects Switzerland and Italy, linking Splügen with Chiavenna. At 2,113 meters (6,929 feet), it provides a direct route through the Alps, offering impressive views of the surrounding mountains and valleys.
Free GPX to KMZ converter online Convert GPX files to KMZ for Google Earth in your browser. Nothing is uploaded.
Convert GPX to KMZ
in your browser.
Drop a .gpx file from your watch, Strava, Komoot or Garmin to convert it to KMZ, the zipped form of KML. You get one small file that Google Earth opens on any device.
The conversion happens on your device. Open the 3D preview if you want to see the route on terrain; that step sends the route to AvoMap, the download does not.
Kilometers0km0km
Miles0mi0mi
Free converterGPX to KMZ01
How to convert a GPX file to KMZ online
Four steps. The last one is optional.
Step 1
Pick the GPX file
Drag the .gpx onto this page or click Select GPX file. Exports from Strava, Garmin Connect, Komoot, Wahoo and GPS loggers work.
Step 2
Check the outline
The page draws the track, measures it and names the start and end point.
Step 3
Download the KMZ file
Click Download KMZ file. The KML is built and zipped on your device, then saved to your downloads folder.
Step 4
Optional: see it in 3D
Open 3D preview shows the same route on satellite terrain in the AvoMap editor, where you can render a video of it.
02
What the GPX to KMZ conversion keeps
The KMZ contains one file, doc.kml, built from your GPX. This is what goes into it when you convert.
| Tracks | Each track becomes a placemark with a path. A track with several segments becomes a MultiGeometry with one line per segment. |
|---|---|
| Routes | Become paths, the same as tracks. |
| Waypoints | Become point placemarks with name and description. |
| Elevation | Kept as the third coordinate. Google Earth drapes the line on the terrain by default; the values are in the file for any tool that wants them. |
| Timestamps | Not carried over. KML keeps time only in gx:Track, which this converter does not write. Keep the GPX if you need the times. |
| Heart rate, cadence, power | Dropped. These live in GPX extensions and KML has no place for them. |
| Line style | A 4 px blue line is written so the track shows up in Google Earth instead of the thin white default. |
| Names and descriptions | Kept. |
| Compression | The KML is zipped as doc.kml. Expect a file a fraction of the size of the GPX. |
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GPX to KMZ for Google Earth on desktop and phones
Where the GPX files come from and where the KMZ file goes.
Google Earth on a phone
Send yourself the KMZ by mail or messenger, or save it to Drive, and tap it. Google Earth for Android and iOS opens KMZ straight from the share sheet. GPX it does not open at all.
Sharing a route
A KMZ is one small file that opens with a double-click wherever Google Earth is installed. For a ride or hike you want to show someone, that beats sending a GPX and explaining what to do with it.
Google Earth Pro
File, Open takes the KMZ. Pro can read GPX itself too, so convert when you want the smaller file or want it to open on the web and phone versions as well.
Strava, Garmin Connect, Komoot
All three export GPX from an activity or tour page. Convert the export here and you have something Google Earth understands on every platform.
04
GPX vs KMZ
What a GPX file and a KMZ file each hold, and which one the app you are heading for expects.
What is a GPX file?
GPX is the plain XML format GPS devices and sports apps trade files in. It holds tracks (what you recorded), routes (what you plan to follow) and waypoints. Every point has latitude and longitude, and can carry elevation and a timestamp. Garmin, Wahoo, Strava, Komoot, AllTrails and OsmAnd all import it.
What is a KMZ file?
A KMZ is a KML file zipped up, sometimes together with the icons and images it refers to. Google Earth Pro saves as KMZ by default. Rename one to .zip and you'll find a doc.kml inside. Anything that reads KML usually reads KMZ too, but a text editor can't.
| GPX | KMZ | |
|---|---|---|
| Made for | GPS devices and sports apps | Google Earth and sharing map files |
| On disk | Plain XML text | Zip archive with a KML inside |
| Timestamps per point | Yes, in tracks | Not in this output |
| Size | Larger | A fraction of the GPX |
| Opens in | Garmin, Wahoo, Strava, Komoot, OsmAnd, AllTrails | Google Earth on desktop, web and phones, My Maps, GIS tools |
Other free GPS file tools
Same idea on every page: the file is read in your browser and nothing is uploaded unless you open the 3D preview.
KML to GPX converter
KML in, GPX out, in your browser.
KMZ to GPX converter
KMZ in, GPX out, in your browser.
GPX to KML converter
GPX in, KML out, in your browser.
KMZ to KML converter
KMZ in, KML out, in your browser.
KML to KMZ converter
KML in, KMZ out, in your browser.
KML to SHP converter
KML in, a zipped shapefile out, for QGIS and ArcGIS.
KMZ to SHP converter
KMZ in, a zipped shapefile out, for QGIS and ArcGIS.
SHP to KML converter
Drop a zipped shapefile, get a KML for Google Earth.
GPX viewer
Open a GPX and see the track, its length and where it starts and ends.
KML viewer
Open a KML or KMZ and see what is inside before you use it elsewhere.
KMZ viewer
Unzip a KMZ in the browser and see the paths and placemarks it holds.
GeoJSON viewer
Open a GeoJSON file and see its features drawn and measured.
FIT file viewer
Open a Garmin, Wahoo or COROS .fit file, see the ride or run, and download it as GPX.
Animate the GPX file as a 3D map video in the AvoMap editor
The converter shows you the outline. The editor puts the same track on satellite terrain, flies a camera along it and exports an MP4 in up to 4K.
The editor is free to use. You pay per exported video, and that pays for the free tools on this site.
Videos Made With AvoMap
Explore the full range of AvoMap features in action with these videos, all created using the easy-to-use editor.
Splügen Pass to Italy 🇮🇹
The Splügen Pass connects Switzerland and Italy, linking Splügen with Chiavenna. At 2,113 meters (6,929 feet), it provides a direct route through the Alps, offering impressive views of the surrounding mountains and valleys.
Ride Through The Desert — Chile
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UTMB Eiger Ultra 2024
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Otter Trail — South Africa
The Otter Trail is a five-day hiking route in South Africa, starting at Storms River Mouth Rest Camp and finishing at the small resort village of Natures Valley in the de Vasselot section of the park.
Kepler Track — New Zealand
The Kepler Track is one of New Zealand's Great Walks, renowned for its stunning natural beauty and varied landscapes. It's a 60-kilometer (37-mile) circular hiking trail located in Fiordland National Park on the South Island of New Zealand. The track typically takes around 3 to 4 days to complete and passes through diverse terrain, including beech forests, alpine meadows, and alongside pristine lakes and rivers.
170 Miles Around Lake Tahoe
The Tahoe Rim Trail is a 170-mile long hiking path encircling the Lake Tahoe Basin in the Sierra Nevada, traversing parts of Nevada and California in the United States. It spans elevations from 6,223 feet at Lake Tahoe's outlet to 10,338 feet at Nevada's Relay Peak.
The Grand Raid — La Reunion
The Grand Raid de la Réunion, known as La diagonale des fous, is an ultramarathon held annually in October on Réunion island, a French overseas department located in the Indian Ocean between Madagascar and Mauritius.
Frankfurt To Dubai In 30 Seconds
As a break from my usual routine, I decided to embark on an epic journey by motorbike from Frankfurt to Dubai. It took me 62 days to complete the trip, and along the way I crossed through 11 different countries including France, Switzerland, Italy, Greece, Albania, North Macedonia, Bulgaria, Turkey, Georgia, Armenia and Iran.
Zugspitze Ultra — Germany
The Zugspitz Ultratrail stands as Germany's premier trail running event. Drawing over 4400 participants, it features six distinct routes spanning from 16 to 106 kilometers in length.
San Francisco Marathon
The San Francisco Marathon is a renowned race featuring a full marathon, half marathon, and 5K. Held in late July, it navigates iconic landmarks like the Golden Gate Bridge and Fisherman's Wharf. The hilly terrain presents a challenge, but the stunning views and community support make it memorable.
Frequently asked questions
Is the GPX to KMZ converter free?
Yes. Converting, the outline and the 3D preview cost nothing, and there is no account to make. AvoMap charges for exported videos, and that pays for the free tools.
Is my GPX file uploaded when I convert it?
No. The file is read and converted in your browser. Two things do leave your device: the coordinates of the first and last point, which are looked up to show place names, and the whole route if you click Open 3D preview. The download itself stays on your device.
GPX vs KMZ: which one should I keep?
Both. GPX is what your watch, Strava and Komoot read, and it holds the timestamps. KMZ is what Google Earth opens on a phone, and what you send to someone who just wants to look at the route.
What is the difference between KMZ and KML?
Same content, different packaging. KML is plain XML text; KMZ is that text inside a zip archive, which makes it smaller and lets it travel as one file. Google Earth opens both. If you want the text version, use the GPX to KML converter.
Are the timestamps kept?
No. KML keeps time only inside gx:Track elements, which this converter does not write. Track, elevation and waypoints are kept. Keep the GPX if you need the times.
What happens to a GPX file with several tracks?
Each track becomes its own placemark inside the KML. A track with several segments becomes a MultiGeometry with one line per segment.
How large a file can it handle?
There is no fixed limit because nothing is sent to a server. Very large files take longer to parse, especially on a phone, and the outline drawn on the page gets dense. The download works regardless.
Can I convert KMZ back to GPX?
Yes, with the KMZ to GPX converter. It unzips the file and converts the KML inside.
Is there a GPX to KMZ app for my phone?
You don't need one. This page is the app: open it in the browser on an iPhone or Android phone, pick the file from your files app, and the KMZ lands in your downloads. Nothing to install.