Length Converter

Advanced Length Converter

Length Converter

Convert between different units of length measurement

Convert From

Convert To

Conversion Results

1 m = 0.001 km
Unit Value
Millimeters (mm) 1,000.00
Centimeters (cm) 100.00
Meters (m) 1.00
Kilometers (km) 0.00

Metric System

1 km = 1,000 m

1 m = 100 cm

1 cm = 10 mm

Imperial/US System

1 mile = 1,760 yards

1 yard = 3 feet

1 foot = 12 inches

Conversions

1 inch = 2.54 cm

1 mile = 1.609 km

1 nautical mile = 1.852 km




A Length Conversion Calculator is a tool that converts measurements of distance or length between different units, such as meters (m), feet (ft), inches (in), miles (mi), and more. It is widely used in engineering, construction, science, and everyday applications where precise length conversions are required. 

1. Metric System Units 

Millimeter (mm) 
  • 1 mm = 0.001 m 
  • Used for small-scale measurements (e.g., paper thickness, mechanical parts). 

Centimeter (cm) 
  • 1 cm = 10 mm = 0.01 m 
  • Common in everyday measurements (e.g., height, clothing sizes). 

Meter (m) 
  • SI base unit of length. 
  • Used in construction, sports tracks, and scientific calculations. 

Kilometer (km) 
  • 1 km = 1,000 m 
  • Used for long distances (e.g., road signs, geography). 

2. Imperial/US Customary Units 

Inch (in) 
  • 1 in = 2.54 cm 
  • Used in electronics (screen sizes), plumbing, and manufacturing. 

Foot (ft) 
  • 1 ft = 12 in ≈ 0.3048 m 
  • Common in real estate (room dimensions), aviation (altitude). 

Yard (yd) 
  • 1 yd = 3 ft ≈ 0.9144 m 
  • Used in textiles (fabric lengths) and sports (football fields). 

Mile (mi) 
  • 1 mi = 5,280 ft ≈ 1.609 km 
  • Used for road distances (e.g., speed limits in the US). 

3. Nautical & Astronomical Units 

Nautical Mile (nmi) 
  • 1 nmi ≈ 1,852 m 
  • Used in marine and aviation navigation. 

Astronomical Unit (AU) 
  • 1 AU ≈ 149.6 million km 
  • Measures distances between celestial bodies (Earth to Sun). 

Light-Year (ly) 
  • 1 ly ≈ 9.461 trillion km 
  • Used in astrophysics for interstellar distances. 

4. Other Specialized Units 

  • Micrometer (µm) – 1 µm = 0.000001 m (microscopic scales). 
  • Nanometer (nm) – 1 nm = 0.000000001 m (used in nanotechnology). 
  • Fathom – 1 fathom = 6 ft ≈ 1.8288 m (marine depth measurements).