FIT to KML Converter
Convert Garmin FIT files to KML format for Google Earth and Google Maps visualization
Your Data is Secure
All file conversions happen directly in your browser. We never upload, store, or save your files on any server. Your data remains completely private and secure.
How to Convert FIT to KML
Follow these simple steps to convert your files quickly and easily
Upload Your FIT File
Click the upload area above or drag and drop your FIT file. Only FIT files with GPS data can be converted to KML format.
Click Convert
Click the convert button to process your FIT file. The converter extracts GPS tracks and creates a KML file with route visualization.
Download Your KML File
Once conversion is complete, download your new KML file. Open it in Google Earth or Google Maps to visualize your workout route.
About FIT to KML Conversion
Learn more about the converter and its creator
Jonas
I'm a software developer and sports enthusiast. I created these converters to help athletes manage their workout data efficiently.
Understanding FIT to KML Conversion
Converting FIT (Flexible and Interoperable Data Transfer) files to KML (Keyhole Markup Language) format allows you to visualize your workout data in Google Earth, Google Maps, and other mapping applications. KML is a file format used to display geographic data and is perfect for viewing your GPS tracks and routes.
What Data is Preserved?
The conversion process maintains all essential GPS and workout data, including:
- GPS coordinates (latitude and longitude)
- Altitude measurements
- Detailed timestamp information
- Heart rate data (as extended data)
- Power output (if available)
- Cadence information
- Speed measurements
- Start and finish point markers
- Complete GPS track with timestamps
KML Format Benefits
The KML format offers several visualization advantages:
- Compatible with Google Earth and Google Maps
- Displays GPS tracks as visual paths on maps
- Shows start and finish points with distinct markers
- Includes elevation data for 3D visualization
- Supports time-based animation of your route
- Can be shared easily for route visualization
Common Use Cases
Converting FIT files to KML format is particularly useful for:
- Visualizing your workout routes in Google Earth
- Sharing routes with friends and family
- Creating route maps for blog posts or presentations
- Analyzing elevation profiles and terrain
- Planning future workouts based on past routes
- Creating beautiful 3D flyovers of your activities
GPS Requirements
Important note about GPS data:
- KML conversion requires GPS coordinates in your FIT file
- Indoor activities without GPS data cannot be converted
- Files with only power/heart rate data (no location) will not work
- The converter filters out invalid GPS coordinates (0,0)
Technical Details
The conversion process involves these steps:
- Reading the binary FIT file format
- Extracting GPS coordinates and sensor data
- Filtering valid GPS points with location data
- Creating KML track with timestamps and coordinates
- Adding start/finish markers and styling
- Including extended data for heart rate and power
- Generating valid KML XML output
Pro Tip
The generated KML file includes both a GPS track with timestamps and separate start/finish markers. In Google Earth, you can use the time slider to animate your route and see how you progressed along the path. The track is styled with a red line, start point with a green marker, and finish point with a red marker.
GPS Data Required
This converter only works with FIT files that contain GPS data. If your FIT file doesn't have location information (indoor activities, treadmill runs, etc.), the conversion cannot be performed. Make sure your activity was recorded with GPS enabled on your device.