Folk wisdom vs. geometry

Would you dig a hole to China?

Pick a place, use your location or click anywhere on the globe, then dig straight through the center of the Earth. See what you pass through and where you come out.

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You dig here You come out here

Or click the globe. Drag to spin it.

Depth0 km
LayerSurface
Temperature15 °C
Free fall0 min
12,742 kmstraight through the center of the Earth
42 minto fall all the way through (about 38 with the real Earth's dense core)
~5,400 °Cin the inner core, about as hot as the surface of the Sun
12.3 kmthe deepest hole ever drilled (Kola, Russia). That is 0.1% of the way.

What would you actually dig through?

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Questions people ask

If I dig straight down from the US, do I end up in China?

No. The point directly opposite the United States is the southern Indian Ocean, southwest of Australia. From New York you'd surface about 1,000 km off the Australian coast. To come out in China you would need to start digging in Argentina or Chile.

What is an antipode?

Your antipode is the point on the exact opposite side of the Earth. Flip the latitude from north to south (or the other way round) and move the longitude by 180 degrees. A straight line between the two points passes through the center of the planet.

Where can you dig and come out on land?

Only in a few places. About 15% of the world's land has land on the opposite side, which is less than 5% of the Earth's surface. The best-known pairs are Spain and New Zealand, Argentina and China, and parts of Chile and China or Mongolia. See the map.

What would you dig through?

First the crust, 5 to 70 km thick. Then the rocky mantle down to 2,890 km, the liquid iron outer core down to 5,150 km, and the solid inner core at the center. Temperatures climb to around 5,400 °C in the middle. Read about each layer.

How long would it take to fall through the Earth?

About 42 minutes in the classic textbook model, or about 38 minutes once you account for the Earth's dense iron core, assuming no air and ignoring the heat. You'd speed up all the way to the center, reaching about 8 km per second, then slow down and stop exactly at the surface on the other side. More on the gravity train.