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15 tools
Use our escape velocity calculator to find out the speed required to leave the surface of any planet.
Use our orbital velocity calculator to estimate the parameters of orbital motion of the planets.
The alien civilization calculator explores the existence of extraterrestrial civilizations by comparing two models: the Drake equation and the Astrobiological Copernican Limits👽
The rocket equation calculator helps you estimate the final velocity of a rocket.
Enter the orbital period calculator, where you can calculate the orbital period of a binary system, a satellite around the Earth, and much more while learning about the universe and the laws that rule it.
Estimate the thrust-to-weight ratio for real aircraft or your designs using the thrust-to-weight ratio calculator.
Estimate how efficiently an engine generates thrust using the specific impulse calculator.
Use our synodic period calculator to determine the synodic or the sidereal periods of a planet.
The exoplanet discovery calculator allows you to play around and discover the calculations that got a Nobel Prize in 2019 for the discovery of planets outside the solar system.
Hohmann transfer calculator lets you find the best fuel-efficient transfers between two circular orbits.
Use this Kepler's third law calculator to find the relationship between a planet's orbital period and it semi-major axis (or mean orbital radius).
If you want to calculate the net thrust generated by a jet rocket engine, the rocket thrust calculator is the easiest way to do it; you don't need to learn rocket physics.
Use the UFO travel calculator to design a fast-moving UFO and estimate its performance.
How much speed do you need to move in space? Find it out with our delta-v calculator!
This Earth orbit calculator determines the speed and orbital period of a satellite at a given height above average Earth sea level.