How much money did it cost to orbit Saturn V (including R&D of course)?
According to wikipedia, the entire cost of the saturn v project was US$185 million, equivalent to US$33.6 billion today. That's from R&D to all launches
> Project cost US$6.417 billion (equivalent to $33.6 billion in 2023)
> Cost per launch US$185 million (equivalent to $969 million in 2023)
That a manned Apollo mission would/did cost under a billion dollars (todays money) is surprisingly cheap. A single Artemis launch using the Space Launch System (SLS) costs an eye watering $4 billions.
Different metric:
> [1966] NASA received its largest total budget of $4.5 billion, about 0.5 percent of the gross domestic product (GDP) of the United States at that time.
Using that metric NASA yearly budget would with todays GDP be $150 billion dollars.