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Gravitational Field Calculator
Find the strength of gravity at a distance from a planet or star, or the mass that produces a given field strength at that point.
g = G × M ÷ r²
Gravitational field strength falls with the square of distance from the centre of the mass that creates it.
Field strength
… N/kg
The calculation runs entirely in your browser, no data leaves your device. Change any number and the answer updates instantly.