How many stairs would you need to walk to the Moon? Well, you’re climbing 240,000 miles, which is more than 1 billion feet (1,267,200,000 feet), or about 15 billion inches. House stairs are supposed to be 7 3/4 inches tall at most. So you need 1,962,116,129 steps — almost 2 billion stairs to climb that high!

Have a nice trip!