Gps Coordinate Conversion Formula

17-08-2021 admin

The conversion is: x = R. cos (lat). cos (lon) y = R. cos (lat). sin (lon) z = R.sin (lat) Where R is the approximate radius of earth (e.g. If your trigonometric functions expect radians (which they probably do), you will need to convert your longitude and latitude to radians first. The UTM conversion formulas are not presented here, but the source code in the following section provides some light. Converting coordinates with Java code. This section introduces the source code of a library class that performs coordinate conversion between decimal degrees and UTM. When using a hand held GPS for instance, you may have to use the information and convert it to or from what a GIS map displays. We have created this series of converters to take degrees, minutes and seconds and convert them to decimal degrees or degrees and decimal minutes. When you use Google API with Excel, you can easily convert your addresses to GPS coordinates, and the other way round, GPS to location. Contact a Service with a Google API. An API (Application Programming Ie) is a service. That means, you contact a server with a specific URL and in return, the server returns a result. GPS coordinates converter. This tool is all about GPS coordinates conversion. As soon as you modify one end of the data (either the decimal or sexagesimal degrees coordinates), the other end is simultaneously updated, as well as the position on the map. The GPS coordinates are presented in the infowindow in an easy to copy and paste format.

The following example was provided by a GeogTools user. To check the accuracy of GeogTool’s State Plane conversion, the user compared the conversion of the following State Plane coordinates from western Missouri (state code 2403):

Easting:0003 853372.6 ft
Northing: 107266.2 ft

These coordinates are known to correspond to:

Latitude: 37.13333353
Longitude: -94.46202253

To check the accuracy of GeogTool’s State Plane conversion, we use the “StatePlane to LatLon” function:

This function requires that the State Plane coordinates be in units of meters (following the official policy of the National Geodetic Survey). Converting from feet to meters using the standard SI conversion (1 ft = 0.3048 m) and then using the converted State Plane coordinates with the 'StatePlane to LatLon' command gives the following:

The converted latitude and longitude are very close to the known coordinates, differing only in 4th decimal place, in this case corresponding to a distance of a few meters. In many cases, this is sufficient. But in some cases greater accuracy is required.

Excel Gps Coordinate Conversion Formula

The discrepancy between the converted and known coordinates is not due to an inaccuracy in GeogTools, but rather due to the conversion from feet to meters. This is because State Plane coordinates are often in U.S. survey feet (3937 yards = 3600 meters) rather than international feet (1 ft = 0.3048 m).

Reconverting the State Plane coordinates into meters using the U.S. survey feet conversion and then converting to latitude and longitude using the “StatePlane to LatLon” command gives

This time we see that the conversion is, for practical purposes, effectively exact. The difference between the U.S. survey foot and international foot is very small. In most cases the difference will not matter. But this small difference can cause problems in some cases, so it's advisable to always know which units are being used.

PGC Coordinate Converter

Enter values into the coordinate tool and the values will automatically update. For decimal degrees, remember to include the negative sign for south and west coordinates!

Errors will show in red text.

Decimal Degrees (DD)

Latitude: °

Longitude: °

Latitude (-90 to 90) and longitude (-180 to 180).
Include up to 6 decimal places.

Degrees Decimal Minutes (DDM)

Latitude: ° ’

Longitude: ° ’

Degrees (0 to 89, 0 to 179) as integers and minutes (0 to 59.9999)
Include up to 4 decimal places.

Degrees Minutes Seconds (DMS)

Latitude: ° ’ ”

Longitude: ° ’ ”

Degrees (0-59) and minutes (0 to 59) as integers and seconds (0 to 59.9999) up to 4 decimal places.

WGS84 Antarctic Polar Stereographic

Y and X values up to 6 decimal places. Origin (0,0) is the geographic South Pole.

WGS84 NSIDC Sea Ice Polar Stereographic North

Y and X values up to 6 decimal places. Origin (0,0) is the geographic North Pole.

Click the map!