1,000,000,000
1 billion feet = 189,393.94 miles.
Answer: 1 billion acres = 1,562.5 mi²
There are about189, 393miles in 1 billion feet
A billion million miles is 1,000,000,000,000,000 miles (1 quadrillion miles).
3.29 billion miles
2 billion miles.
7.5 billion kilometers = ~4.7 billion miles.
1 billion miles to the gallon
5.1 billion km is ~3.2 (3.16899) billion miles.
4.702 billion kilometers = 2.922 billion miles (rounded)
1.6 billion inches = 25252.5253 miles
2.8 billion miles = 4,506,163,200 kilometers.