Yes, 1 mile is 1.6 kilometers. So, 400x1.6=640.
640 km is 397.678 miles.
The exosphere goes from about 400 miles (640 km) high to about 800 miles (1,280 km).
400 miles + 400 km = 648.548 miles or 1,043.736 km.
Answer: 4000 km = 2485.484 mi.
Answer: 400 km = 248.548 mi.
400 kilometres is equal to a distance of 248.5 miles.1 km = 0.6214 miles
400 kilometers = ~248.55 miles.
248400 miles
The exosphere is the outer layer of the atmosphere. It goes from about 400 miles (640 km) high to about 800 miles (1,280 km). The lower edge of the exosphere is where atmospheric pressure and temperature is very low (the gas atoms are very widely spaced).
400 miles = about 643.7 km
400km is 248.5 miles.
About 400 miles or 643 km