GPS Coordinate Converter — DMS, Decimal, UTM, MGRS
Convert GPS coordinates instantly between DMS, decimal degrees, UTM and MGRS formats; see the result on the map and copy with one click.
Decimal Degrees (DD)
Degrees-Minutes-Seconds (DMS)
UTM
MGRS
Related Tools
Online GPS Coordinate Format Converter
Supported Formats
The Rodosto GPS Format Converter lets you instantly convert geographic coordinates between different formats. It is designed for cartographers, engineers and GIS specialists.
- Decimal Degrees (DD): Widely used in GPS devices and web maps. Example: 41.0082, 28.9784
- Degrees-Minutes-Seconds (DMS): The standard format in traditional cartography. Example: 41°0'29.5"N 28°58'42.2"E
- UTM: A metric coordinate system used in military and engineering maps.
- MGRS: The grid reference system used in NATO and military operations.
How to Use
Enter a coordinate in any format and click "Convert". All other formats are calculated automatically. You can also select a coordinate by clicking on the map.
Other Tools
For conversion between projection systems, use our Coordinate Converter tool. To visualize your map data, try the Map Viewer.
Frequently Asked Questions
What is the difference between DMS and decimal degrees?
DMS (Degrees°Minutes'Seconds") breaks a coordinate into three parts, for example 41°0'29"N. Decimal degrees (DD) expresses the same value as a single number, 41.0082. Decimal degrees are easier for calculation and are preferred by web mapping applications and most GIS software. DMS is traditional in cartography and navigation instruments.
What are degrees-decimal-minutes (DDM)?
Degrees-decimal-minutes (DDM), sometimes called degrees and decimal minutes, is a hybrid format where degrees are whole numbers and minutes include a decimal fraction — for example 41°0.492'N. It is commonly used in nautical charts and by handheld GPS receivers from brands such as Garmin.
How do I convert lat/lon to UTM?
Enter your latitude and longitude in decimal degrees or DMS format and click Convert. The tool automatically determines the correct UTM zone and computes the easting and northing values. For datum conversions (e.g. WGS84 to ED50), use the Coordinate Converter.
What is MGRS used for?
MGRS (Military Grid Reference System) is used in NATO military operations and search-and-rescue activities. It encodes a UTM coordinate into a compact alphanumeric string such as 35TPF8504418678. For civilian GIS work, decimal degrees or UTM are more commonly used.
Can I click the map to get coordinates?
Yes. Clicking anywhere on the map preview populates all coordinate format fields simultaneously. This is useful when you know a location visually but need its exact values in a specific format.
Which GPS coordinate format does Google Maps use?
Google Maps displays and accepts coordinates in decimal degrees (DD) format, for example 41.0082, 28.9784. When you right-click a location in Google Maps, the coordinates shown are in decimal degrees. Use this tool to convert those values to DMS, DDM, UTM, or MGRS as needed.
Is this GPS converter accurate?
Yes. The conversions between DD, DMS, and DDM are purely mathematical and lossless to full floating-point precision. UTM conversion uses the proj4 library with WGS84 datum parameters, delivering sub-metre accuracy across all zones.