Compare rocket vs mass-driver + Starship launch economics - dollars per kg to orbit and Mars with savings and annual cadence.
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Once you can launch from the Moon, the economics of reaching orbit and Mars change completely. This calculator compares pure-Starship-from-Earth against a lunar mass driver plus Starship, giving the real cost per kilogram to your chosen destination.
It's built to make the business case for lunar industry legible — the numbers that show when off-Earth launch beats launching everything from the ground.
Cost per kilogram is the launch cost spread over delivered payload, amortised across annual flights. Departing from the Moon needs far less energy than climbing out of Earth's gravity well, so a lunar mass driver plus Starship can undercut pure Earth launch for the right destinations and volumes.
The calculator surfaces cadence as the key variable: reusable and electromagnetic systems get cheaper the more they fly, so the architecture that wins depends heavily on how busy it is.
For high-volume delivery to lunar or transfer orbits, a mass driver plus Starship can beat pure Earth launch on cost per kilogram once cadence is high — the crossover that justifies building launch infrastructure on the Moon.
To show when electromagnetic lunar launch beats rockets-from-Earth on cost per kilogram.
Reusable and electromagnetic systems amortise cost across flights, so more flights means lower per-kg cost.
Destinations reachable cheaply from the Moon's shallow gravity well, like transfer orbits.
No — order-of-magnitude figures for comparison, with adjustable assumptions.
Yes — 25 languages, in-browser.
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