People think rockets use tremendous amounts of fuel, but a Falcon 9's fuel is only slightly more than half the weight of the fuel in a fully fueled 747. There'

People think rockets use tremendous amounts of fuel, but a Falcon 9's fuel is only slightly more than half the weight of the fuel in a fully fueled 747. There's also a lot of oxidizer (about 2.5x as much as the fuel) but LOX is very cheap, the second cheapest industrial liquid after water.