Coordinate Converter: DD, DMS, UTM & MGRS
Quick Guide
- Paste any coordinate string (DD, DMS, UTM or MGRS).
- Click Convert—format is auto-detected.
- View results in all supported formats and on the map.
- Click or tap on the map to pick a location and auto-generate coordinates.
How Coordinate Converter Works Under the Hood
We use robust parsing via regular expressions to detect formats, then the Proj4js library for UTM/MGRS projections. An interactive Leaflet.js map updates in real time and listens for click events to drop markers.
Who Should Use This Coordinate Converter?
- Web developers integrating dynamic maps
- GIS professionals verifying field data
- Surveyors & civil engineers needing precise transformations
- First responders using offline grid references
Convert Coordinates Now
Coordinate Converter
Convert GPS coordinates between formats (DD, DMS, UTM, MGRS). Use the map, input, or search box.
Recent Conversions
Click or tap on the map to select any location and instantly view its DD, DMS, UTM & MGRS values.
Supported Formats & Details
Decimal Degrees (DD)
Example: 31.80440, 34.65530
- Definition: Coordinates as decimal numbers (latitude, longitude).
- Precision: Up to 6 decimals (~0.11 m).
- Common Uses: Web APIs, GeoJSON, CSV exports.
Degrees–Minutes–Seconds (DMS)
Example: 31°48′15.84″N 34°39′19.08″E
- Definition: Sexagesimal: 1° = 60′, 1′ = 60″.
- Common Uses: Nautical charts, land surveying.
- Tip: Always include N/S/E/W hemisphere letters.
Universal Transverse Mercator (UTM)
Example: 36S 597000 3550000
- Definition: 60 zones (6° each) with metric easting/northing.
- Common Uses: Engineering, cartographic mapping.
- Note: Valid only within its zone.
Military Grid Reference System (MGRS)
Example: 36S WL 97000 50000
- Definition: UTM grid refined into 100 km squares.
- Common Uses: Military ops, disaster response.
- Precision: Varies by digit count (1 km to 1 m).
Frequently Asked Questions
Which formats are supported?
DD, DMS, UTM & MGRS—all auto-detected in one widget.
How precise are conversions?
- DD: ~0.11 m at 6 decimals.
- DMS: Sub-meter with decimal seconds.
- UTM/MGRS: Meter-level precision.
Is my data stored?
No—all parsing & mapping run client-side, keeping your coordinates private.
What Did We Learn Today?
- Convert DD, DMS, UTM & MGRS in one free widget.
- Auto-detection of input format for instant results.
- Click or tap on the map to generate coordinates.
- 100% client-side—your data never leaves your browser.