Antipode Calculator

What Is an Antipode?

The antipode of a point on Earth is the diametrically opposite location on the globe. If you could dig a straight tunnel through the center of the planet, you would emerge at your antipode.

How to Calculate an Antipode

Given coordinates $(\theta, \varphi)$ where $\theta$ is latitude and $\varphi$ is longitude:

Antipode latitude: $\theta_a = -\theta$
Antipode longitude: $\varphi_a = \varphi + 180°$ if $\varphi \leq 0$, otherwise $\varphi_a = \varphi - 180°$

Frequently Asked Questions

What is the antipode of Mount Everest?

Mount Everest at 27.988°N, 86.925°E has its antipode at approximately 27.988°S, 93.075°W in the South Pacific Ocean.

Do most antipodes fall in the ocean?

Yes. Land covers less than 30% of Earth's surface, so roughly 85% of antipodes fall in water, mostly the Pacific Ocean.

Which coordinate format should I use?

Use decimal degrees. Positive latitude is North, negative is South. Positive longitude is East, negative is West.

Are Britain and New Zealand antipodes?

They are nearly antipodal. This is why the saying goes that the sun never set on the British Empire.

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What Is an Antipode?

How to Calculate an Antipode

Frequently Asked Questions

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