There are 1000 meters in one kilometer, so there are 0.221 km in 221 m.
221 meters=22,100 centimeters
there are 2,500 meters in 2.5 kilometers and 5,000 meters in 5 kilometers.
4 kilometers are 4,000 meters.
6,378 kilometers=6,378,000 meters
67 meters, or 221 feet.
21 kilometers=21,000 meters21 kilometers = 21,000 meters
670 meters=0.67 kilometers
7 meters=0.007 kilometers
8 kilometers = 8,000 meters
49 kilometers = 49,000 meters
9250 meters are 9.25 kilometers.
15 meters = 0.015 kilometers