Free Online GPX to FIT Converter
Easily convert your GPX files to FIT format online. Transform your hiking tracks and cycling routes into compact, high-performance binary data optimized for Garmin Edge, Epix, Forerunner, and Wahoo fitness devices. Fast, private, and 100% free.
Drop your GPX file here
Files are processed locally in your browser — your data stays private
file.gpx
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FIT Conversion Options
How to Convert GPX to FIT
Easily transform files for Garmin and Wahoo devices in three simple steps.
Upload GPX Track
Drag and drop your standard GPX track. Whether you recorded it on an Apple Watch, exported from Strava, or planned it on Komoot, we handle it seamlessly.
Tweak Speed Settings
Garmin devices require timestamp data to calculate pace. If your uploaded path lacks time data, simply set a target average speed and we'll automatically generate the required data points.
Download .FIT
Download your highly compressed binary FIT file instantly. Just plug in your watch or bike computer, drop the file directly into the "NewFiles" folder, and you're ready to hit the trail.
GPX vs. FIT: What's the Difference?
Understanding why converting your files is crucial for modern fitness tracking.
| Feature | GPX (GPS Exchange Format) | FIT (Flexible and Interoperable Data Transfer) |
|---|---|---|
| Format Type | Text-based XML | Compact Binary Protocol |
| File Size | Large (Bloated with text tags) | Up to 10x Smaller (Highly compressed) |
| Primary Use Case | Universal sharing across desktop and web mapping apps | Native execution on Garmin, Wahoo, & professional fitness watches |
| Supported Metrics | Basic (Coordinates, Elevation, Timestamps) | Advanced (Heart Rate, Power, Cadence, Laps, Form Metrics) |
| Device Processing | Slower (Hardware struggles to parse raw text lines sequentially) | Instant (Natively read directly into memory by device processors) |
Optimized for Professional Fitness Hardware
Why use our FIT converter? The FIT protocol is the gold standard for modern sports tracking. Our tool ensures every single data point—from elevation to heart rate—is perfectly encoded for leading fitness ecosystems, guaranteeing your route displays flawlessly on your Garmin Forerunner, Edge, or Wahoo ELEMNT.
- check_circle Protocol Buffer Encoding
Uses the official FIT SDK standards for flawless file reading.
- check_circle Laps & Summaries
Automatically generates session summaries and distance markers.
- check_circle High Precision Coordinates
Maintains sub-meter coordinate precision for accurate track lines.
- check_circle 100% Private
All conversion happens in your browser — your GPS data never leaves your device.
Compatible Devices & Platforms
FIT files are the native format for modern fitness tracking. Our converter ensures perfect compatibility with the industry's leading hardware and software ecosystems.
Garmin
Edge Cycling Computers, Forerunner, Fēnix, Epix, and Instinct series.
Wahoo Fitness
ELEMNT ROAM, ELEMNT BOLT, and RIVAL multisport watches.
Polar & Suunto
Vantage, Grit X, Suunto 9, Suunto Vertical, and Spartan series.
Training & Analytics Platforms
Strava, TrainingPeaks, Komoot, RideWithGPS, and intervals.icu.
GPX to FIT Conversion FAQs
Why use FIT instead of GPX?
FIT is a binary format that is much smaller than the XML-based GPX. It is designed specifically for fitness data, allowing for richer metadata like power, heart rate, and training effects with much faster processing on hardware like Garmin watches.
Are timestamps required for FIT?
Yes, the FIT specification requires timestamps for every data point. If your GPX file lacks them, our tool can generate synthetic timestamps based on a target average speed that you configure.
Which devices can read FIT files?
FIT files are supported by Garmin, Wahoo, Polar, and most modern fitness GPS devices. They can also be imported into Strava, TrainingPeaks, Komoot, and similar platforms.
Is my data modified during conversion?
Your original path coordinates remain untouched. We simply wrap them in the FIT protocol container and calculate distance totals for device compatibility.
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