Barometric Altimeter & Elevation Fixer - Smooth Sawtooth Noise
Clogged watch barometer holes and GPS altitude bounce causing inflated elevation on Strava? Apply moving average filters and clamp pressure spikes.
How to Use Elevation & Barometer Fix in 3 Simple Steps
Step 1: Upload
Drag & drop your .FIT, .GPX, or .TCX activity file. All processing is 100% private in your browser.
Step 2: Process
FitCrop inspects telemetry streams, removes anomalies, recalibrates metrics, or fixes binary checksums.
Step 3: Export
Download your clean Strava, Garmin, and Zwift compatible file with 1 click. Zero server wait.
Frequently Asked Questions
Why does Strava show higher elevation gain than my watch?
Strava applies digital elevation models (DEM) when it detects GPS elevation without a recognized barometer, which often overcounts micro-hills. FitCrop preserves barometric tags with smooth noise filtering.
What causes sudden 1000m altitude jumps in FIT files?
Rain, sweat, or dust entering the tiny barometer pressure equalization hole temporarily blocks air pressure, causing huge vertical spike glitches.