At what height does Earth's gravity stop?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Earth's gravity never completely stops it extends infinitely throughout space, just becoming weaker with distance. At the International Space Station's altitude (about 400 km), gravity is still about 90% of surface strength. Astronauts feel weightless because they're in constant free fall around Earth, not because gravity disappeared. Even the Moon, 384,400 km away, experiences about 0.0003g from Earth. Gravity decreases according to the inverse suare law but never reaches absolute zero.
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