Length Converter

Convert between different length units with real-time calculations

Common lengths:

Metric Units

Kilometer(km)
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Meter(m)
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Centimeter(cm)
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Millimeter(mm)
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Micrometer(µm)
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Nanometer(nm)
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Imperial & US Units

Mile(mi)
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Yard(yd)
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Foot(ft)
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Inch(in)
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Nautical-mile(nmi)
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Length Conversion Reference

Metric System
  • 1 kilometer = 1,000 meters
  • 1 meter = 100 centimeters
  • 1 centimeter = 10 millimeters
  • 1 millimeter = 1,000 micrometers
  • 1 micrometer = 1,000 nanometers
Imperial/US System
  • 1 mile = 1,760 yards = 5,280 feet
  • 1 yard = 3 feet = 36 inches
  • 1 foot = 12 inches
  • 1 nautical mile = 1,852 meters
Note: 1 inch is exactly 2.54 centimeters by international agreement.