Coordinate Format Converter
Convert coordinates between DD, DMS, UTM, and MGRS formats instantly. Supports batch conversion with one-click copy.
Convert Between All Major Coordinate Formats
DD, DMS, UTM, and MGRS — convert any coordinate format to all others in one click.
4 Coordinate Formats
Convert between Decimal Degrees (DD), Degrees-Minutes-Seconds (DMS), Universal Transverse Mercator (UTM), and Military Grid Reference System (MGRS). Enter a coordinate in any format and instantly see all four representations.
Batch Conversion
Convert multiple coordinates at once. Enter one coordinate per line and get all four format results for each. Ideal for processing field survey data or converting coordinate lists.
Browser-side Processing, Data Privacy Guaranteed
All coordinate format conversions run entirely in your browser using Proj4js and MGRS.js. Your coordinate data is never sent to any server. No account needed, no data stored.
How to Convert Coordinate Formats
Select Input Format
Choose the format of your input coordinates from the dropdown: DD, DMS, UTM, or MGRS.
Enter Coordinates
Type or paste your coordinates in the input area. Enter one coordinate per line for batch conversion.
Click Convert
Hit the Convert button to transform your coordinates. All four format results appear instantly.
Copy Results
Click the copy button next to any format result to copy it to your clipboard. Each format can be copied independently.
Supported Coordinate Formats
Decimal Degrees (DD)
Standard numeric format used by GPS and most GIS software. Example: 39.905833, 116.397500
Degrees Minutes Seconds (DMS)
Traditional format used in navigation and cartography. Example: 39°54'21.0"N 116°23'51.0"E
Universal Transverse Mercator (UTM)
Metric grid system dividing Earth into 60 zones. Used in military, engineering, and surveying. Example: 50N 447750.22 4416892.43
Military Grid Reference System (MGRS)
Extension of UTM with letter designators for grid squares. Used by NATO and military organizations. Example: 50TMK4775016892
100% Free
No usage limits, no premium tiers. Professional coordinate format conversion at zero cost.
Instant Results
All conversions happen in milliseconds in your browser. No waiting for server responses.
Frequently Asked Questions
What is the difference between DD and DMS?
What is UTM and when should I use it?
What is MGRS and how does it relate to UTM?
How accurate is the format conversion?
Can I convert multiple coordinates at once?
Is my coordinate data safe?