FIT TCX

FIT to TCX Converter

Convert Garmin FIT files to TCX for Polar Flow, Fitbit, and older training platforms. Free and private.

Drop your .fit file here

or click to browse — file never leaves your device

All processing happens in your browser. No data is uploaded to any server.

How to Convert FIT to TCX

Drop your .fit file above. The converter extracts GPS, heart rate, cadence, power, and speed data and writes them into a Garmin Training Center XML (TCX) file.

What data is preserved?

  • GPS coordinates
  • Elevation
  • Timestamps
  • Heart rate
  • Cadence
  • Distance
  • Speed and power (via TCX ActivityExtension)

Why convert FIT to TCX?

TCX is required for importing workouts into Polar Flow, some versions of Fitbit, and older Garmin Training Center software. It is also used by many triathlon and cycling platforms that predate the FIT standard.

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