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Known issues: Coordinate conversion (errors for some conversions).

This tool converts coordinates to the antipodal coordinates (on the opposite side of the world). Simply enter the coordinates in one of the boxes and click calculates. It is also possible to do the calculation by dragging the markers or by double clicking on the desired location.


In geography, the antipodes (from Greek: anti- "opposed" and pous "foot") of any place on Earth is the point on the Earth's surface which is diametrically opposite to it. Two points that are antipodal to each other are connected by a straight line running through the centre of the Earth. The antipodal coordinates can easily be calculated. The northing of the coordinate can be switched, so N becomes S and S becomes N, eg. N50 52.123 => S50 52.123. The easting is a little more tricky. There is a 180 degree difference between them, so 180-E becomes W and 180-W becomes E, eg. E005 45.123 => W174 14.877.

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  Last update: 12-29-2023
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