Channel Islands coordinate systems

3 EPSG coordinate systems used in Channel Islands. Pick one to open a converter already set to it, with its parameters and area of use.

The 3 EPSG coordinate systems for Channel Islands are based on ETRS89 and Isle of Guernsey. The projection is Transverse Mercator (3). Coordinates are in metres. Together they cover 48.8°N to 50.2°N, 3.7°W to 1.8°W.

Questions about Channel Islands coordinates

Which coordinate system is used in Channel Islands?
3 EPSG systems are defined for Channel Islands, on datums such as ETRS89 and Isle of Guernsey. Use the one named in your survey report or drawing; the EPSG code is the safest way to identify it.
How do I convert Channel Islands coordinates to latitude and longitude or Google Earth?
Open the system's page below and type an easting and northing into the converter, or paste a whole spreadsheet into the free web app and choose the system by name or EPSG code. Save the result as KML or KMZ and open it in Google Earth.
Are Channel Islands coordinates in metres or feet?
All 3 are in metres. Enter the numbers in the unit of the system you choose; each system's page shows its unit.

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