Explore orbital mechanics and escape velocity through interactive simulations. Fire projectiles from various celestial bodies and built objects, or create your own worlds. Understand the physics behind orbits and space travel.
3.0
October 13, 2026
Escape Velocity Calculator has been rebuilt from nothing. It now draws the answer rather than just stating it. Newton's cannon from the Principia fires from any of thirty-six worlds, from the Moon and Mars to Pluto, a neutron star and the edge of a black hole, and you watch each shot fall back, orbit or escape, worked out from the physics on your device. Figures for the planets, moons and asteroids come from NASA's Jet Propulsion Laboratory. There is far more to it. Famous shots to load at a tap, from the Paris Gun on Pluto to Jules Verne's Columbiad. Every world on one ladder of escape speed. The rocket equation, Newtonian and relativistic, for how much fuel it takes to leave. A forge to build your own worlds and squeeze them into black holes. Saved setups, share cards, painted portraits of the worlds throughout, and a layout made for iPad as well as iPhone. No account, no subscription, and the app never goes online. One price, once, as before. Everyone who already owns Escape Velocity Calculator gets all of this free.
MoreEscape Velocity Calculator is a paid app that simulates orbital mechanics and escape velocity. It allows users to fire projectiles from various celestial bodies and built objects, or create their own worlds to understand the physics behind orbits and space travel.
Escape Velocity Calculator features 36 worlds, including the Sun, planets, moons, asteroids, comets, white dwarfs, neutron stars, black holes, the International Space Station, the Great Pyramid, and a Saturn V rocket. Each world's page provides escape speed, gravity, mass, and density.
Yes, the 'Forge' feature in Escape Velocity Calculator allows you to build your own world. You can give it a name, color, mass, and size, and even squeeze it until it becomes a black hole. You can then fire from it and edit it.
No, Escape Velocity Calculator does not require an internet connection of any kind. It can be used offline on your iPhone or iPad.
Escape Velocity Calculator is available on iPhone and iPad devices.
The latest version of Escape Velocity Calculator is 3.0, and it was last updated on October 13, 2026. Updates typically focus on refining simulations and adding new content.
Escape Velocity Calculator has an age rating of 4+, making it suitable for a wide range of users interested in learning about physics.
No, Escape Velocity Calculator does not contain advertisements. It is a paid application that offers an ad-free experience.
