Why convert TCX to FIT?
If you exported a workout from a platform like Strava or Polar Flow as a TCX file but need to import it into a Garmin device or Garmin Connect, converting to FIT is often the easiest path. FIT files are smaller, load faster on devices, and preserve the full range of data that Garmin hardware expects.
This is especially common when switching between fitness ecosystems or re-uploading corrected activities.
What data is preserved?
Converting from TCX to FIT with FitConvert preserves:
- GPS coordinates
- Timestamps
- Heart rate
- Cadence
- Speed
- Elevation
- Distance
- Lap and split data
Because FIT is a richer format than TCX, no data is lost during this conversion.
How to convert with FitConvert
- Visit FitConvert in your browser
- Drop your
.tcxfile onto the upload area (or click to browse) - Select FIT as the target format
- Click Convert
- Your converted
.fitfile downloads automatically
The entire conversion runs in your browser. Your file never leaves your device.
Alternative approaches
You could also use Garmin's FIT SDK or desktop tools like GPSBabel, but these require installation and configuration. FitConvert handles it instantly in the browser with no setup needed.