How this calculator works
Enter first mass (kg), second mass (kg), center-to-center distance (m). CalcStack applies the displayed formula and reports each intermediate planning value with the units shown.
Formula / method
F = Gm₁m₂ ÷ r²
Worked example
1,000 kg and 500 kg separated by 10 m attract with 0.000333715 N.
Assumptions and limitations
Masses are treated as points or spherically symmetric bodies.
Relativistic effects, rotation and extended-body geometry are not modeled.