Decimal degrees & DMS
Two ways to express WGS84 latitude and longitude. DMS changes notation, not the location or geodetic datum.
Coordinate Conversion Studio
Convert between latitude and longitude, DMS, UTM, and Web Mercator. Check points on a map and transform entire CSV datasets, without uploading a file.
✓ WGS84 precision✓ CSV batch tools✓ Privacy-first map
COORDINATE WORKSPACE
Coordinate Conversion Studio
Choose a workflow and enter coordinates in the selected source format.
CONVERT A POINT
Source coordinates
SPATIAL PREVIEW
Map preview
Offline grid is on. Enabling tiles shares the viewed map area with OpenStreetMap servers. No tiles are fetched until you enable them.
40.712800° N, 74.006000° W
CONVERTED VALUES
ReadyCoordinate formats
Convert your point to fill every compatible output format.
Decimal degreesWGS84 · EPSG:4326 · latitude, longitude
—Degrees · minutes · secondsWGS84 · DMS
—UTM coordinatesWGS84 · UTM zone
—Web MercatorEPSG:3857 · X and Y in metres
—UNDERSTAND THE NUMBERS
Which coordinate system should you use?
Not all systems describe the same area or units. Keep the original datum and coordinate axis order in mind when transferring data.
WGS84 UTM
Zone-based projected eastings and northings in metres. EPSG:32601–32660 north or EPSG:32701–32760 south.
Web Mercator
EPSG:3857 powers most interactive web basemaps. It is distorted at high latitudes and should not be used for precise distance or area measurement.
Frequently asked questions
Is converting DMS to decimal degrees accurate?
Yes, within floating-point rounding and the number of displayed decimal places. Conversion does not add measurement precision that wasn't in your original input.
Which EPSG codes are supported?
WGS84 geographic EPSG:4326, WGS84 UTM northern EPSG:32601–32660, southern EPSG:32701–32760, and Web Mercator EPSG:3857. Other datums and local grid systems are not supported. UTM conversions use standard series approximations.
Are coordinates or CSV files uploaded?
No. Numeric conversions and CSV processing are local. If you opt into the external OpenStreetMap basemap, map tile requests reveal the viewed area and your network connection to that map provider; the toggle is off by default.
What about UTM outside its standard coverage?
WGS84 UTM is limited to 80°S–84°N. Web Mercator is limited to approximately 85.051129° latitude. The converter explains unsupported outputs rather than silently clipping coordinates.