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GPX to FIT Converter

Convert GPX routes to FIT format with customizable speed settings for Garmin devices

Your Data is Secure

Your data is processed securely on our servers and is never stored. The conversion happens instantly and all files are deleted immediately after processing.

How to Convert GPX to FIT

Follow these simple steps to convert your files quickly and easily

Step 1

Upload Your GPX File

Click the upload area above or drag and drop your GPX route file. Select a .gpx file from your GPS device or route planning software.

Step 2

Set Speed & Convert

Enter a default speed (km/h or mph) for the route if your GPX file doesn't contain speed data, then click convert to process the file.

Step 3

Download Your FIT File

Once conversion is complete, download your new FIT file. Transfer it to your Garmin device to follow the route during workouts.

Your files are processed securely in your browser - nothing is uploaded to our servers

How GPX to FIT Conversion Works

Learn more about the converter and its creator

Jonas

Jonas

I'm a software developer and sports enthusiast. I created these converters to help athletes manage their workout data efficiently.

Understanding GPX to FIT Conversion

Converting GPX (GPS Exchange Format) files to FIT (Flexible and Interoperable Data Transfer) format allows you to import route data into modern fitness devices and platforms. This converter helps you transform static GPS routes into activity-based FIT files that can be used with Garmin devices and other fitness platforms.

How It Works

The conversion process involves several steps:

  1. Reading the GPX file and extracting GPS coordinates
  2. Calculating distances between points
  3. Applying the specified average speed to generate timing data
  4. Creating a properly formatted FIT file with all required fields
  5. Adding necessary metadata for device compatibility

Speed Settings

Since GPX files typically don't contain speed information, you'll need to specify an average speed for the activity. This is important because:

  • FIT files require timing data for each point
  • Speed helps calculate realistic timestamps
  • Proper timing data makes the activity more realistic
  • Accurate speed improves compatibility with fitness platforms

Data Conversion Details

The converter preserves and generates the following data:

  • GPS coordinates (latitude and longitude)
  • Elevation data (if available in GPX)
  • Calculated speed based on your input
  • Distance calculations between points
  • Generated timestamps for each point
  • Activity type metadata

Common Use Cases

This conversion is particularly useful for:

  • Converting planned routes to FIT activities
  • Importing routes into Garmin devices
  • Creating structured workouts from routes
  • Sharing routes in a format compatible with fitness platforms
  • Converting historical GPS data to modern formats

Pro Tip

When choosing an average speed, consider the terrain and typical speeds for your activity type. For cycling on flat terrain, 20-25 km/h might be realistic, while for running, 10-12 km/h is more typical.