How much did we really spend to go to the moon?

The actual cost of going to the Moon was a fraction of the commonly cited figure. The commonly cited figure is $25.4 billion. Yet the actual cost of the first landing (Apollo 11) did not exceed $500 million. What accounts for this difference? We estimate that the United States spent $20.6 billion preparing to land astronauts on the Moon. The cost of preparation far exceeded the expense of the first surface expedition.

How much did we really spend to go to the moon?

A Science, Technology, and Space Policy Initiative