GPS Coordinate Converter —
Decimal, DMS, DDM, UTM & MGRS

Convert GPS coordinates between all five major formats — Decimal Degrees, DMS, DDM, UTM, and MGRS — instantly. Paste any format and it auto-detects. Click anywhere on the map to get coordinates. Bulk convert multiple pairs and export CSV. Free, no signup.

📍 Decimal DD
🧭 DMS ↔ DD
⚓ DDM
📐 UTM
🪖 MGRS
🔄 Auto-Detect
🖱 Click Map
🗂 Bulk CSV
🔄 GPS Coordinate Converter
Detected: Paste coordinates or click the map →
🗂 Bulk Convert
One coordinate pair per line — any format
#InputDecimalDMSUTMMGRS
🖱 Click anywhere on the map to auto-fill coordinates 📡 GPS enabled
Click the map to see coordinates here

GPS Coordinate Converter: Convert Between All 5 Formats with Map Preview

This GPS coordinate converter converts between the five most widely used geographic coordinate formats — Decimal Degrees, DMS, DDM, UTM, and MGRS — simultaneously in real time. Three ways to input: type or paste coordinates in any format (auto-detected), click anywhere on the interactive map, or press My Location for your current GPS position. The map updates instantly and shows the pin for every coordinate. Bulk convert any number of pairs and export a CSV for GIS software or spreadsheets.

All 5 GPS Coordinate Formats — Comparison Table

FormatExampleUsed InBest For
Decimal (DD)28.6139, 77.2090Google Maps, APIs, databasesWeb development, digital mapping
DMS28°36'50"N 77°12'32"ENavigation, aviation, chartsTraditional navigation, paper maps
DDM28°36.834'N 77°12.54'EMarine GPS, hiking GPS unitsBoating, handheld GPS devices
UTM43R 728818E 3168376NGIS, surveying, scienceAccurate distance measurement
MGRS43RGJ2881868376Military, search & rescueNATO, outdoor tactical navigation

Decimal Degrees — The Digital Standard

Decimal Degrees (DD) express a location as a single decimal number: 28.6139, 77.2090. This is the default format for Google Maps, Leaflet, Mapbox, all web mapping APIs, databases, JSON payloads, and smartphone apps. Positive latitude is North, negative is South. Positive longitude is East, negative is West.

When you share a Google Maps link, copy coordinates from the URL, or use any location API, you are working in Decimal Degrees. Any workflow that touches software or databases should use DD.

DMS — Traditional Navigation Format

DMS (Degrees, Minutes, Seconds) breaks a coordinate into three components: 28°36'50"N 77°12'32"E. To convert Decimal to DMS: degrees are the whole number; multiply the decimal by 60 for minutes; multiply the minute decimal by 60 for seconds. This converter handles the conversion in both directions instantly — enter DMS coordinates and get Decimal back.

Aviation flight plans, nautical charts, traditional GPS receivers, and printed topographic maps all use DMS. When a coordinates format starts with degrees followed by cardinal direction letters (N, S, E, W), it is DMS.

DDM — Marine and Handheld GPS Standard

DDM (Degrees Decimal Minutes) is a hybrid: 28°36.834'N 77°12.54'E. The degrees are whole numbers, but the minutes are decimal. Marine GPS units, US Forest Service maps, and most consumer handheld GPS devices use DDM because it is easier to read than full DMS while still being human-readable on small screens.

UTM and MGRS — For Professionals and Military

UTM divides Earth into 60 zones and expresses location as Easting and Northing in metres: 43R 728818E 3168376N. GIS professionals, land surveyors, and scientists prefer UTM because metric distances can be calculated directly from the coordinates without trigonometric correction.

MGRS (Military Grid Reference System) builds on UTM by adding a two-letter 100km grid square designator: 43RGJ2881868376. NATO military forces, search and rescue operations, and tactical outdoor navigation all use MGRS for its compact format compatible with military maps.

Why Click-on-Map Matters

The most common source of coordinate errors is manual transcription — misreading a decimal point, swapping latitude and longitude, or entering the wrong hemisphere. Clicking directly on the map eliminates this entirely. The clicked position feeds directly into the converter, instantly producing accurate Decimal, DMS, DDM, UTM, and MGRS results with no typing required.

Use Cases

GIS & Surveying

Convert field-collected DMS coordinates to Decimal for import into QGIS, ArcGIS, or PostGIS. Bulk convert an entire dataset and export CSV.

Aviation

Convert digital map DD coordinates to DMS for flight management systems, aviation charts, and airspace boundary definitions.

Military & SAR

Convert GPS coordinates to MGRS for NATO military operations, search and rescue planning, and tactical field navigation.

Photography & EXIF

Convert GPS coordinates extracted from photo EXIF data between DD and DMS for geotag workflows and mapping.

Travel & Hiking

Convert Google Maps decimal coordinates to DDM for entry into handheld GPS units, trail apps, and marine navigation devices.

Developers

Batch convert DMS from legacy data to Decimal Degrees for APIs. Click map to test coordinate precision visually.

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Frequently Asked Questions

Common questions about GPS coordinate formats, conversions, and how this tool works.

This converter supports five formats: Decimal Degrees (28.6139, 77.2090), DMS (28°36'50"N 77°12'32"E), DDM (28°36.834'N 77°12.54'E), UTM (43R 728818E 3168376N), and MGRS (43RGJ2881868376). It auto-detects the input format and converts to all others simultaneously. You can also click the map to get coordinates in all formats instantly.
Click anywhere on the interactive map on the right side of the tool. The latitude and longitude of the clicked point automatically fill the coordinate input and convert to all five formats — Decimal, DMS, DDM, UTM, and MGRS — instantly. The map pins the location you clicked. Use My Location to convert your current GPS position.
Paste DMS coordinates into the input field — the tool auto-detects the format and converts instantly. The formula is: Decimal = Degrees + (Minutes / 60) + (Seconds / 3600). For example, 28°36'50"N = 28 + (36/60) + (50/3600) = 28.6139°. This converter handles the math automatically in both directions.
UTM expresses location as Easting and Northing in metres within a numbered zone: 43R 728818E 3168376N. MGRS builds on UTM by adding a two-letter 100km grid square designator for a compact code: 43RGJ2881868376. MGRS is used by NATO military forces, search and rescue teams, and tactical outdoor navigation.
Yes. Use the Bulk Convert section. Paste multiple coordinate pairs, one per line, in any format. Click Convert All. The results table shows Decimal, DMS, UTM, and MGRS for every valid pair. Download all results as a CSV file for Excel, Google Sheets, QGIS, or any GIS platform.
Google Maps uses Decimal Degrees (DD) by default, showing coordinates like 28.6139, 77.2090. It also accepts DMS in the search bar. The Google Maps button in this tool opens the converted location directly in Google Maps using the decimal coordinates from your conversion.