Antipode Calculator

What is an antipode?

An antipode is the point on the Earth's surface diametrically opposite to your location. Draw a line from your position through the center of the Earth and out the other side — the point you reach is the antipode. Its latitude is the opposite of yours (north/south swapped) and its longitude differs by 180°.

Formula

Latitude: lat₂ = −lat₁ (north/south swapped)

Longitude: lng₂ = (lng₁ + 180°) normalized to −180° ~ 180°

Example

The antipode of Beijing (39.9042°N, 116.4074°E) is roughly (39.9042°S, 63.5926°W), in the South Atlantic Ocean east of Argentina.