Escape Velocity Calculator
Calculate the minimum velocity needed to escape a gravitational field
G = 6.674e-11 N·m²/kg²
Earth: M = 5.972×10²⁴ kg, r = 6.371×10⁶ m
Moon: M = 7.342×10²² kg, r = 1.737×10⁶ m
Sun: M = 1.989×10³⁰ kg, r = 6.963×10⁸ m
Formula Used
v_escape = √(2GM/r)
Where: G = gravitational constant, M = mass of body, r = radius
Escape velocity is √2 times the orbital velocity at the same altitude