Newtonian Gravity Calculator
Calculate gravitational force, escape velocity, orbital velocity, and surface gravity.
Newtonian Gravity Calculator
Calculate gravitational force, escape velocity, orbital velocity, and surface gravity.
Gravitational Force (F = Gm₁m₂ / r²)
Defaults show Earth–Moon force. Masses in kg, distance in meters.
Force Result
Gravitational Force (F): 1.982111e+20 N
Escape & Orbital Velocity
Defaults show Earth mass with a low Earth orbit radius. Mass in kg, radius in meters.
Velocity & Gravity Results
Escape Velocity: 10,850.5399996432 m/s
Circular Orbital Velocity: 7,672.4904132836 m/s
Surface Gravity: 8.6940051901 m/s²
Newtonian Gravity Calculator
This free calculator applies Newton’s law of universal gravitation to find the gravitational force between two masses, plus escape velocity, circular orbital velocity, and surface gravity for a central body. No sign-up required.
- Gravitational force: F = Gm₁m₂/r²
- Escape velocity: v = √(2GM/r)
- Circular orbital velocity: v = √(GM/r)
- Surface gravity: g = GM/r²
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