Kilometer

km

Commonly Used Scientific Unit

The kilometer is the standard unit for long distances in the metric system. It's used on road signs, maps, and navigation systems in nearly every country outside the United States, Liberia, and Myanmar.

Quick Converter

1 km = cm

Controls display format. Very small or very large numbers will be shown in scientific notation (e.g., 1.5e-6).

Kilometer (km)

The kilometer is the standard unit for long distances in the metric system. It’s used on road signs, maps, and navigation systems in nearly every country outside the United States, Liberia, and Myanmar.

Characteristics

  • Metric system unit
  • 1 km = 1,000 meters
  • Road distance standard in most countries
  • GPS and mapping standard globally

Conversions

  • 1 km = 1000 m
  • 1 km = 100,000 cm
  • 1 km = 0.621371 miles
  • 1 km = 0.539957 nautical miles
  • 1 km = 3280.84 feet
  • 1 km = 1093.61 yards

Related Units

Used In Regions

EU International Scientific Worldwide
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