At a desk instead of a trailhead?
The same conversions — plus GPX analysis, validation, and editing — run free in your browser at GPXAnalyzer.com.
About MyGPSConverter
MyGPSConverter is an offline GPS coordinate conversion tool. Quickly convert your current location into multiple coordinate formats—even without a data connection. Perfect for hikers, responders, military personnel, and map users needing accurate offline location conversions.
Capture your current longitude and latitude, paste coordinates from other sources, or enter any location manually. Convert and view your position across the reference systems used on paper maps, in SAR operations, and in field reports. Every conversion is stored in a searchable history log for easy access later.
100% ad-free and privacy-focused—no tracking, no accounts, no data collection. Your locations stay on your device.
MyGPSConverter is built by Nexus Works, an independent studio focused on offline-first GPS field apps — including GPX Analyzer, MyGPS Log, MyGPS Waypoints, and RC Sentinel. The app shares its coordinate conversion engine with the free GPX Analyzer web tools, so a conversion on your phone matches the result in the browser. Each format is documented, with worked examples and references to the NGA and USGS standards, in the format guides.
Screenshots
Key Features
- Six Coordinate Formats — Converts between DD, DMS, DDM, UTM, MGRS, and GARS, instantly and in any direction.
- Works Entirely Offline — No signal or internet required. Every conversion runs on the phone, deep in a canyon or miles past coverage.
- Smart Input Fields — Auto-parse pasted coordinates: degree symbols, direction letters, UTM zones, and MGRS strings all recognized.
- Capture Your Fix — One tap grabs your current position and shows it in every format at once.
- History Log — Save and revisit converted locations with the built-in searchable history.
- Share Anywhere — Send any converted location via text, email, or clipboard—in the format the other person's map speaks.
- Ad-Free & Private — No ads, no tracking, no data collection. Everything stays on your device.
Supported Coordinate Formats
The systems used on paper maps, in SAR operations, and in field reports — converted between instantly.
DD — Decimal Degrees
Simple decimal latitude and longitude — the format apps and websites speak.
32.312064, -114.539201
DD ↔ DMS guide →
DMS — Degrees Minutes Seconds
The traditional sexagesimal format found on charts and older maps.
32°18'43.4"N, 114°32'21.1"W
Formula & examples →
DDM — Degrees Decimal Minutes
Whole degrees with decimal minutes — the marine and aviation standard.
32°18.724'N, 114°32.352'W
DDM explained →
UTM — Universal Transverse Mercator
Metric, zone-based grid used on topographic maps worldwide.
11S 731676mE 3577687mN
UTM conversion guide →
MGRS — Military Grid Reference
UTM refined into alphanumeric grid squares, down to 1-meter precision.
11SQR3167577686
MGRS guide →
GARS — Global Area Reference
30-minute global cells with quadrant and keypad — used for area coordination.
131LE29
GARS guide →
Free On The App Store
Put it on your phone before you need it.
Ideal for hikers, emergency responders, military personnel, and anyone who reads more than one kind of map.
App Information
Now Available on the App Store Available Now
Privacy: No data collection of any kind. Conversions and history stay on your device.
Offline: All six coordinate systems convert with no data connection—airplane mode included.
Formats: DD, DMS, DDM, UTM, MGRS, and GARS.
Frequently Asked Questions
Does MyGPSConverter work offline?
Yes. Every conversion runs entirely on the phone — no signal or internet required, airplane mode included. All six coordinate systems convert with no data connection, deep in a canyon or miles past coverage.
Is MyGPSConverter free?
Yes. MyGPSConverter is free to download on the App Store, and it is 100% ad-free — no ads, no accounts, no tracking.
What coordinate formats does it support?
Six formats, converted instantly and in any direction: decimal degrees (DD), degrees-minutes-seconds (DMS), degrees decimal minutes (DDM), UTM, MGRS, and GARS. Smart input fields auto-parse pasted coordinates — degree symbols, direction letters, UTM zones, and MGRS strings are all recognized.
Is there a desktop or browser version?
Yes. The same developer publishes a free browser-based coordinate converter at GPX Analyzer that handles the same formats on any computer. It uses the same conversion engine as the app and runs locally in your browser — nothing is uploaded.
Why do the same coordinates point to different spots on different maps?
Usually it is a datum mismatch: the same numbers read against different reference datums (WGS84 vs. NAD27, for example) can land hundreds of meters apart. The Datum 101 guide at GPX Analyzer explains what a datum is and how to avoid the trap, and the UTM topo-map guide covers matching grid coordinates to paper maps.
Is my data private?
Yes. There is no tracking, no accounts, and no data collection of any kind. Your conversions and history stay on your device.