What coordinate formats does the converter support?

The coordinate transformer supports: Decimal Degrees (DD), Degrees Decimal Minutes (DDM), Degrees Minutes Seconds (DMS), Universal Transverse Mercator (UTM), Military Grid Reference System (MGRS), and address/place search via geocoding. Supported datums include WGS84, NAD83, NAD27, and ETRS89.

Is the coordinate converter free to use?

Yes. The XRTech Group satellite coordinate converter is completely free with no account, no login and no API key required. All conversions happen in your browser — no data is sent to a server.

Can I pin multiple GPS points on the map?

Yes. Each converted coordinate is pinned on the interactive map as a numbered marker. You can add as many points as needed, view them all simultaneously, click markers to see their details, and download all points as a KML, CSV or GeoJSON file.

What is the difference between WGS84 and NAD83?

WGS84 (World Geodetic System 1984) is the global standard used by GPS satellites and most satellite imagery providers. NAD83 (North American Datum 1983) is used for US mapping and differs from WGS84 by up to 1 metre in the continental US. NAD27 (older US datum) can differ from WGS84 by up to 100 metres and should always be converted.

How do I convert UTM coordinates to latitude and longitude?

Click the UTM tab in the Input Format panel. Enter the UTM zone number and band letter (for example 40R), then the easting and northing in metres. Click Convert to get the equivalent latitude and longitude in decimal degrees, DMS and DDM, with the location pinned on the satellite map.

What is the difference between Decimal Degrees, DDM and DMS?

All three express the same geographic position in different notations. Decimal Degrees (DD) uses a single decimal number like 25.204849°. Degrees Decimal Minutes (DDM) splits into degrees and decimal minutes like 25° 12.291'. Degrees Minutes Seconds (DMS) uses three components like 25° 12' 17.46". All are mathematically equivalent.

How do I convert coordinates for Google Earth?

Convert your coordinates using this tool with WGS84 datum selected. Then either copy the decimal degrees output and paste into Google Earth's search bar, or download the KML file and open it in Google Earth Pro via File > Open. The KML method creates named placemarks for multiple points.

Can I use this tool to find coordinates for a specific address?

Yes. Click the Search tab and type any place name, address or landmark. The tool uses OpenStreetMap Nominatim geocoding to find the location, pins it on the satellite map, and outputs all coordinate formats simultaneously.

Free Tool

Satellite Coordinate Converter: Transform GPS Points Instantly

The most complete free coordinate transformer for satellite imagery professionals. Convert between decimal degrees, DMS, UTM, and more — pin your GPS points on a live map and export as KML, CSV or GeoJSON. No account. No limits.

7 Coordinate Formats WGS84 · NAD83 · NAD27 Live Map Pinning Free, No Login

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7+Formats

4Datums

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Format Transform Example

25.2048° NDecimal Degrees

55.2708° EDecimal Degrees

25° 12' 17.3" NDMS

55° 16' 14.9" EDMS

40R 345744EUTM Easting

2793286NUTM Northing

40RBN4574493286MGRS

WGS84Datum

Use this free coordinate transformer to convert satellite coordinates to GPS points in any format. Enter your input coordinates, choose the format and datum, click Convert, and read all output formats instantly. Pin each result to the interactive map, then download as KML, CSV or GeoJSON for use in Google Earth, QGIS, ArcGIS or any GIS workflow.

Input Format

Latitude (decimal degrees)

N is positive (+), S is negative (−)

Longitude (decimal degrees)

E is positive (+), W is negative (−)

Datum & Label

Datum / Reference Ellipsoid

Point Name / Label (optional)

Pinned GPS Points 0

No GPS points yet Enter coordinates above and click Convert to pin your first GPS point on the map.

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Export:

Select your input format, enter coordinates, choose a datum and click Convert & Pin on Map. You can pin multiple GPS points and download them all.

Quick Answer

How do I convert satellite coordinates to GPS points?

To convert satellite coordinates to GPS points, enter your coordinates in the input panel above, select the input format (Decimal Degrees, DMS, UTM or MGRS), choose your datum (WGS84 for standard satellite imagery), and click Convert. The coordinate transformer instantly outputs all GPS point formats — decimal degrees, degrees minutes seconds, degrees decimal minutes, UTM zone/easting/northing, and MGRS — and pins the location on an interactive satellite map. You can convert multiple points, rename them, and download the full set as KML, CSV or GeoJSON. No account or software installation required.

How It Works

How to Transform GPS Coordinates — Step by Step

Select Your Input Format

Choose from Decimal Degrees, Degrees Decimal Minutes, Degrees Minutes Seconds, UTM, MGRS, or address search. The input panel adapts its fields to match your chosen format.

Enter Your Coordinates

Type your satellite coordinates into the input fields. The converter accepts a wide range of notation styles including signed decimals, hemisphere letters (N/S/E/W), degree symbols and separators.

Choose Datum and Click Convert

Select your reference datum — WGS84 for all modern GPS and satellite imagery, NAD83 for North American data, NAD27 for legacy US surveys. Click Convert to transform coordinates and pin the point on the map.

Download or Copy Your GPS Points

All converted GPS points appear in the results bar in every format simultaneously. Export as KML for Google Earth or GIS software, CSV for spreadsheets, GeoJSON for web mapping, or copy to clipboard.

GPS Coordinate Format Reference Table

This reference table shows the same coordinate expressed in each format supported by the satellite coordinate converter, using the location of Dubai, UAE as the example.

Format	Example (Dubai, UAE)	Common Use	Datum
Decimal Degrees (DD)	25.204849°N, 55.270782°E	Google Maps, satellite imagery metadata, web APIs	WGS84
Degrees Decimal Minutes (DDM)	N25° 12.291', E55° 16.247'	Marine navigation, aviation, geocaching	WGS84
Degrees Minutes Seconds (DMS)	N25° 12' 17.5", E55° 16' 14.8"	Land surveys, civil engineering, mapping	WGS84
Universal Transverse Mercator (UTM)	40R 345744mE 2793286mN	GIS, topographic mapping	WGS84
What3Words	///filled.count.soap	Emergency services, logistics, delivery	WGS84

Coordinate Datums

Understanding Coordinate Datums When Transforming GPS Coordinates

Choosing the wrong datum when you transform GPS coordinates can cause position errors of up to 200 metres. Here is what each datum means and when to use it.

WGS84 — The Global GPS Standard

WGS84 (World Geodetic System 1984) is the reference ellipsoid used by all GPS satellites and virtually all modern satellite imagery providers including Maxar, Airbus, Planet, and SPOT. If your coordinates come from a GPS device, Google Maps, satellite metadata, or any modern GIS source, they are almost certainly in WGS84. Use WGS84 when in doubt.

Recommended for all satellite imagery work

NAD83 — North American Datum 1983

NAD83 is used for US, Canadian and Mexican mapping and is the basis for the US State Plane Coordinate System and most US federal GIS data. In the continental United States, NAD83 and WGS84 differ by less than 1 metre — for most practical purposes they are interchangeable. However, in Alaska the difference can reach 2 metres, so conversion matters for precision work.

Offset from WGS84: 0–2 m in continental US

NAD27 — Legacy US Datum (Pre-1983)

NAD27 (North American Datum 1927) was used for US mapping before 1983 and is still found in legacy survey data, old USGS topo maps and historic records. It uses the Clarke 1866 ellipsoid and can differ from WGS84 by 10 to 100 metres depending on location. If you are working with data from pre-1983 US surveys, always convert to WGS84 before using in modern GIS workflows.

Offset from WGS84: up to 100 m — always convert

ETRS89 — European Terrestrial Reference System

ETRS89 is the official reference system for Europe, used for all EU mapping, INSPIRE-compliant data and most European national grid systems. It is aligned with WGS84 at epoch 1989 and currently differs by approximately 0.6–0.7 metres due to tectonic motion. For most European GIS and satellite imagery projects, ETRS89 and WGS84 are practically interchangeable, but precision geodesy requires conversion.

Offset from WGS84: ~0.6 m (Europe)

How Accurate Is This Coordinate Transformer?

All coordinate conversions in this tool use the standard mathematical transformations for each format on the WGS84 ellipsoid. Decimal degrees, DMS and DDM conversions are exact (they are different notations of the same angular measurement). UTM and MGRS conversions use the standard Karney series expansion, with accuracy better than 0.01 mm for all positions within the valid UTM zone. Datum transformations (NAD83, NAD27, ETRS89) use the standard Helmert 7-parameter transformation, with accuracy of 0.1–1.0 metres depending on the region.

Who Uses It

Who Uses a Satellite Coordinate Converter

From GIS analysts integrating multi-source satellite data to field surveyors cross-checking GPS readings, the need to convert coordinate formats and transform GPS coordinates arises in every discipline that works with geographic data.

GIS Analysts

Reconcile coordinate formats when merging layers from different satellite and survey sources. Convert UTM field data to WGS84 decimal degrees for web mapping, or transform WGS84 to national grid formats for national agency submissions.

Land Surveyors

Convert between DMS field survey readings and decimal degrees for digital cadastral entry. Transform NAD27 legacy survey points to WGS84 for modern GPS stake-out. Cross-check UTM coordinates against satellite imagery metadata.

Satellite Imagery Users

Satellite imagery metadata often provides bounding coordinates in WGS84 decimal degrees. Use this converter to transform those coordinates into the format needed for your GIS platform, CAD software or GPS receiver.

Construction & Engineering

Convert design coordinates from national grid formats to GPS for machine guidance systems. Transform site grid coordinates to WGS84 for drone survey control points and satellite image georeferencing.

Precision Agriculture

Transform field boundary coordinates between formats for different precision agriculture platforms. Convert MGRS waypoints from drone surveys to decimal degrees for agronomic management zone mapping software.

Key Features

Features of This Free Coordinate Transformer

Multi-Format Output

Every conversion outputs all formats simultaneously — DD, DDM, DMS, UTM and MGRS — with one-click copy for each.

Live Map Pinning

Each GPS point is pinned on an interactive satellite map instantly. Click any marker to view its full coordinate details in a popup.

Multi-Point Session

Convert and pin as many GPS points as needed in one session. All points are stored and displayed simultaneously on the map.

GIS-Ready Exports

Download all points as KML (Google Earth, ArcGIS), CSV (spreadsheets) or GeoJSON (web mapping, QGIS). Files include all coordinate formats and datum information.

GPS Auto-Location

Click My Location to convert your device's GPS coordinates instantly. Useful for field verification of satellite imagery control points.

Private & Browser-Side

All conversions happen in your browser. No coordinate data is sent to any server. Your GPS points and project locations remain completely private.

FAQ

Frequently Asked Questions About Coordinate Conversion

Enter your satellite coordinates in the input panel above — in decimal degrees, DMS, UTM, MGRS or any supported format. Select the correct datum (WGS84 for modern satellite imagery), click Convert, and the tool outputs all GPS point formats simultaneously and pins the location on the interactive satellite map.

Decimal degrees express geographic position as angles from the equator (latitude) and prime meridian (longitude). UTM (Universal Transverse Mercator) is a rectangular grid system that divides the Earth into 60 zones and expresses position as metres east (easting) and metres north (northing) from a fixed reference point within each zone. UTM is preferred for distance and area calculations because it uses linear units. Decimal degrees are preferred for data exchange, web mapping and satellite metadata.

WGS84 (World Geodetic System 1984) is the mathematical model of Earth's shape used by all GPS satellites. Since satellite imagery is georeferenced using GPS ground control points, and GPS uses WGS84, virtually all commercial satellite imagery (Maxar WorldView, Airbus Pleiades, Planet Dove, etc.) is supplied with WGS84 coordinates. It is the universal standard for satellite-derived geographic data.

Yes. You can convert and pin as many GPS points as needed in a single session. Each converted point is added to the map and the points list. At any time, download all pinned points as a single KML, CSV or GeoJSON file containing all coordinate formats and datum metadata.

The coordinate conversion calculations (DD, DDM, DMS, UTM, MGRS) all run entirely in your browser with no internet connection required after the page loads. The interactive map and address search require an internet connection to load map tiles and geocoding results. Downloaded KML, CSV and GeoJSON files work offline in any compatible software.

Click the UTM tab in the Input Format panel. Enter the UTM zone number and band letter (for example, 40R for the UAE/Gulf region), then enter the easting in metres (the 6–7 digit number) and northing in metres. Click Convert and the tool outputs the equivalent latitude and longitude in decimal degrees, DMS and DDM simultaneously, and pins the location on the satellite map. The UTM to latitude longitude conversion uses the standard transverse Mercator inverse projection on the WGS84 ellipsoid.

All three formats express the same angular position — they differ only in notation. Decimal Degrees (DD) express the full angle as a single decimal number, for example 25.204849°. Degrees Decimal Minutes (DDM) split the value into degrees and a decimal fraction of minutes, for example 25° 12.291' — this is the format used by marine GPS and geocaching. Degrees Minutes Seconds (DMS) uses three integer-like components, for example 25° 12' 17.46" — traditionally used in printed maps, civil surveys and older GPS devices. All three are mathematically equivalent and this tool converts between them with zero precision loss.

Google Earth Pro uses WGS84 coordinates in decimal degrees. Enter your source coordinates in this tool using the appropriate input format tab, ensure WGS84 is selected as the datum, and click Convert. Then either copy the decimal degrees output and paste them directly into Google Earth's search bar (format: 25.204849, 55.270782), or download the KML file from this tool and open it in Google Earth Pro via File > Open. The KML method is better for multiple points as it creates named placemarks you can save to My Places.

Yes. Click the Search tab in the Input Format panel and type any place name, address, landmark, city, or geographic feature. The tool uses the OpenStreetMap Nominatim geocoding service to find the location, pins it on the satellite map and converts its coordinates into all supported formats simultaneously — decimal degrees, DMS, DDM, UTM and MGRS. This is particularly useful for finding the WGS84 coordinates of a location before ordering satellite imagery of that area.

Common Mistakes

Common Coordinate Conversion Errors and How to Avoid Them

Most GPS coordinate mismatches in GIS and satellite imagery workflows come from a small set of recurring mistakes. Understanding these errors prevents costly re-work.

Swapping Latitude and Longitude

Problem: Entering longitude first in a field that expects latitude, or vice versa. A coordinate of 55.270, 25.204 plots in Russia rather than Dubai.

Solution: Latitude always comes first (north–south, range −90 to +90). Longitude always comes second (east–west, range −180 to +180). This tool labels each field explicitly and validates the range before accepting the input.

Wrong Datum Selected

Problem: Using NAD27 coordinates in a WGS84 workflow without conversion. In areas like Texas, this produces position errors of 80–100 metres — enough to place a survey point in the wrong cadastral parcel.

Solution: Always confirm the datum of your source data before converting. Check the metadata of your GPS file, survey report or satellite imagery delivery note. If unknown, verify against a known landmark and test both WGS84 and NAD83.

Misreading Degrees Minutes Seconds

Problem: Treating 25° 12' 17" as 25.1217 decimal degrees. The correct conversion is 25 + 12/60 + 17/3600 = 25.20472°. The naive reading introduces an error of over 1 kilometre.

Solution: Always use a proper converter — never manually truncate or concatenate DMS values. Select the DMS tab in this tool, enter the full degrees, minutes and seconds values, and read the correct decimal degree output.

Wrong UTM Zone for the Location

Problem: Applying UTM Zone 40 easting/northing values to a Zone 39 projection (or vice versa) when importing into GIS software. This displaces all coordinates by hundreds of kilometres.

Solution: The UTM zone is calculated automatically from the longitude in this tool. Always include the zone number and band letter (e.g. 40R) when recording or transferring UTM coordinates — never record just the easting and northing without the zone.

Decimal Degree Precision — How Many Digits Do You Need?

Decimal Places	Example	Precision on Ground	Sufficient For
0 decimal places	25°	~111 km	Country-level reference only
1 decimal place	25.2°	~11 km	City or region reference
2 decimal places	25.20°	~1.1 km	Town neighbourhood
3 decimal places	25.204°	~111 m	Street-level navigation
4 decimal places	25.2048°	~11 m	Field surveys, site plans
5 decimal places	25.20484°	~1.1 m	Precision GIS, cadastral work
6 decimal places	25.204849°	~0.11 m (11 cm)	Satellite imagery georeferencing
7 decimal places	25.2048490°	~1.1 cm	High-accuracy RTK GPS surveys
8 decimal places	25.20484900°	~1 mm	Geodetic control points

GIS Workflow

Complete Coordinate Transformation Workflow for Satellite Imagery Projects

This step-by-step workflow shows how to use the satellite coordinate converter at each stage of a typical GIS or satellite imagery project — from initial data collection through to final delivery.

Identify Your Source Coordinate System

Before converting anything, confirm what coordinate format and datum your source data uses. Check GPS device export settings (most modern GPS devices export WGS84 decimal degrees). For survey files, check the project header. For satellite imagery, check the delivery metadata — virtually all commercial providers supply WGS84.

Convert to Your Target System Using This Tool

Select the input format tab matching your source data (DD, DDM, DMS, UTM or MGRS). Enter the coordinates, choose the correct datum, and click Convert. The tool outputs all formats simultaneously — copy the format you need for your target system with one click.

Verify on the Satellite Map

Every converted point is pinned on the satellite map instantly. Before using coordinates in your project, always verify visually that the pin location matches the expected location on the satellite imagery. If the pin is wrong, you have caught a conversion error before it propagates into your GIS.

Export KML for GIS Import

Download all converted points as a KML file. KML is the most universally compatible vector format — it opens natively in Google Earth Pro, QGIS (via drag-and-drop), ArcGIS Pro (Layer > Add Data), AutoCAD Map, and most other GIS platforms. The KML includes all coordinate formats in the description field for full traceability.

Use CSV for Spreadsheet and Database Integration

The CSV export includes latitude, longitude, DMS, DDM, UTM easting, UTM northing, UTM zone and MGRS in separate columns. This structure is ready for direct import into Excel, ArcGIS attribute tables, PostgreSQL/PostGIS, and custom project management databases without any reformatting.

Order Satellite Imagery for Your AOI Using the Converted Coordinates

Once your control points and AOI boundaries are confirmed and converted, use the XRTech Group Satellite Area Calculator to draw your exact polygon. Download that KML and upload it to XRTech Group's quote form to order the satellite imagery you need for that exact location.

Order Satellite Imagery

GIS Software Compatibility — Which Export Format to Use

Software	Recommended Export	Import Method	Coordinate Input Format
Google Earth Pro	KML	File > Open	WGS84 decimal degrees
QGIS	KML or GeoJSON	Drag-and-drop or Layer > Add Layer	WGS84 (EPSG:4326)
ArcGIS Pro	KML or CSV	Map > Add Data or Geoprocessing Tools	WGS84 GCS or projected CRS
AutoCAD Map 3D	KML or CSV	Insert > Map Import	Decimal degrees or UTM
Microsoft Excel	CSV	File > Open or Power Query	Decimal degrees as numbers
PostgreSQL/PostGIS	GeoJSON or CSV	ogr2ogr or COPY command	WGS84 SRID 4326
Garmin GPS Devices	KML (convert to GPX)	Garmin Express or BaseCamp	WGS84 decimal degrees
DJI Drone Platforms	CSV	DJI Pilot 2 Waypoint Import	WGS84 decimal degrees

Professional Satellite Data

Need Satellite Imagery for Your Converted Coordinates?

Once you have your GPS coordinates confirmed, XRTech Group can deliver professional satellite imagery for that exact location. Copy your KML file from this tool and upload it directly to our quote form as your area of interest.

30cm High-Resolution Satellite Imagery

Order 30cm native resolution satellite imagery for any GPS coordinate you have converted with this tool. Archive from $20/km² delivered in 48 hours. Compatible with ArcGIS, QGIS, AutoCAD and all GIS workflows.

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Archive & Tasking from $1/km²

Use the KML exported from this coordinate converter to define your exact area of interest for satellite imagery ordering. Archive imagery from 1999 from $1/km². New satellite tasking from $8/km² with no export licence delays.

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SAR ImageryAll-weather radar data Hyperspectral330 band GF-5B data DEM Services3D terrain from stereo Pricing TableAll resolutions listed

Related Free Tools

More Free Satellite & GIS Tools from XRTech Group

XRTech Group provides a suite of free online tools for satellite imagery professionals. Use these tools together for a complete pre-order workflow.

Satellite Area Calculator Draw polygons and measure land area on satellite maps. Export KML, CSV and PNG. Use for AOI definition before ordering imagery. Buy Satellite Imagery Order archive or new tasking imagery for any coordinates you have converted. From $1/km², delivered in 48 hours globally. Imagery Pricing Guide Full pricing table for all satellite imagery resolutions — 30cm, 50cm, 1m, 3m, 5m and multispectral. Archive and new tasking costs. DEM & Elevation Data Order digital elevation models for your GPS coordinates. Stereo-derived DEMs from 30cm satellite imagery for terrain analysis.

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Coordinates Confirmed? Order Satellite Imagery for That Location.

XRTech Group delivers professional satellite imagery for any GPS coordinates you have transformed with this tool. Upload your KML file to our quote form — no redrawing required. Archive from $1/km², new tasking from $8/km², 48-hour delivery worldwide.

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