GPX Distance Finder
GPX Distance Finder
Open a GPX track · Paste coordinates · Get miles from start and to end
.gpx files only · stays on your device, never leaves your browser
Paste or type as: lat, lon · e.g. 39.123456, -84.512345
What This Tool Does
You have a GPX track. You have a set of coordinates — a campsite, a road crossing, a water source, a trailhead. You need to know exactly where along the track that point falls.
That's it. Open your GPX file, paste in the coordinates, get the mileage.
The tool measures from your coordinates to the nearest point on your track line, then reports the cumulative distance from the track's start to that point — and the distance remaining to the end. Results appear instantly. You can run as many queries as you need in a single session, then export everything as a CSV spreadsheet.
The distance-to-end reading matters on a route you can hike in either direction. The same waypoint a westbound hiker measures from the start, an eastbound hiker measures from the end. Both numbers, one query, no mental math.
How to Use It
- Click Open and select your GPX track file — or drag it into the drop zone
- The tool loads your track and shows the total length and number of track points
- Paste or type coordinates in decimal format:
lat, lon— for example39.123456, -84.512345 - Hit Find or press Enter
- Your mileage from the track start appears immediately — along with miles to the end, the coordinates, and how far off the track they fall
- Repeat for as many coordinates as you need
- Click Export history as CSV to save your results
Run it through the Elevation Gain Calculator
GPX Distance Finder Accuracy and Coordinate Format
Your file stays on your device. The GPX file never leaves your browser. Nothing is sent to any server. You're not uploading anything — the tool reads the file locally and does all the math in your browser window.
Accuracy depends on track density. The tool measures the perpendicular distance from your coordinates to the nearest segment of the track line, then reports the cumulative distance from the start to that point. Denser tracks give more precise results. A track recorded every 50 feet will read more accurately than one with points every half mile. If a result looks off, check how many track points your file contains — the tool shows this when the file loads.
Decimal coordinates only. The tool expects latitude and longitude in decimal degree format, like 39.123456, -84.512345. If your coordinates are in degrees/minutes/seconds, convert them first. Most GPS apps and mapping tools give you decimal format by default.
The Off Track reading is your sanity check. Alongside the mileage, the tool shows how far your entered coordinates sit from the nearest point on the track line. A reading of a few hundred feet is normal. Several miles suggests either the wrong coordinates or a track that doesn't cover that area.
Who Built This and Why
Hiking America builds navigation tools for long-distance hikers — primarily for the American Discovery Trail and the Great American Rail-Trail. Placing waypoints accurately along a 6,800-mile trail involves exactly this kind of calculation, done hundreds of times. We built this tool to make that process faster, then made it free because every hiker doing serious route planning runs into the same problem.
If you're planning a long-distance hike and want to know more about our GPS tracks and waypoint data, hikingamerica.com is the place to start.
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A free tool from Hiking America — navigation resources for the American Discovery Trail and Great American Rail-Trail.