How Fast Is Earth Escape Velocity?

11.2 km/s is the speed needed to escape Earth's gravity entirely. Every Moon mission and every spacecraft sent to the planets has reached this speed. Below it, you fall back; above it, you leave Earth's gravitational influence forever.

Earth's escape velocity is 11.2 km/s — every Moon mission, every Mars probe, every interstellar spacecraft reached this speed.

• 1.4× orbital velocity
• Every Moon mission reached this speed