1. a unit of length equal to 1,000 meters or approximately 0.62 miles

Examples

• The marathon is 42.2 kilometers long.
• We drove about 50 kilometers to reach the city.
• The speed limit on this highway is 100 kilometers per hour.
• The nearest gas station is two kilometers away.
• Mount Everest is 8.8 kilometers above sea level.
• She runs five kilometers every morning for exercise.