How much fuel is needed to get a rocket into orbit?

The amount of fuel required to get a rocket into orbit depends on several factors, including the rocket's design, payload weight, and the specific orbit being targeted. Typically, a large rocket like the Falcon 9 uses around 500,000 liters of fuel (kerosene and liquid oxygen) to launch payloads to low Earth orbit. The fuel-to-payload ratio can be quite high, often exceeding 90%, due to the need to overcome Earth's gravity and atmospheric drag. Overall, achieving orbit is a highly energy-intensive process that requires careful engineering and precise calculations.