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Length Converter

Popular Length Conversions

Need to quickly convert centimeters to inches, kilometers to miles, or feet to meters? Here are some of the most commonly used length conversions:
  • Centimeters <-> Inches
  • Millimeters <-> Inches
  • Meters <-> Feet
  • Kilometers <-> Miles
  • Feet <-> Centimeters
  • Meters <-> Yards
  • Millimeters <-> Centimeters
  • Inches <-> Meters
  • Meters <-> Miles
  • Yards <-> Feet

Full List of Supported Length Units

Our converter supports a wide range of length units from metric and imperial systems to astronomical and historical measurements. All conversions are based on the meter [m] as the base unit.
  • Meter [m] – Base unit
  • Kilometer [km] = 1000 m
  • Centimeter [cm] = 0.01 m
  • Millimeter [mm] = 0.001 m
  • Micrometer [µm] = 1×10⁻⁶ m
  • Nanometer [nm] = 1×10⁻⁹ m
  • Mile [mi] = 1609.344 m
  • Yard [yd] = 0.9144 m
  • Foot [ft] = 0.3048 m
  • Inch [in] = 0.0254 m
  • Light Year [ly] = 9.4607×10¹⁵ m
  • Exameter [Em] = 1×10¹⁸ m
  • Petameter [Pm] = 1×10¹⁵ m
  • Terameter [Tm] = 1×10¹² m
  • Gigameter [Gm] = 1×10⁹ m
  • Megameter [Mm] = 1×10⁶ m
  • Hectometer [hm] = 100 m
  • Dekameter [dam] = 10 m
  • Micron [µ] = 1×10⁻⁶ m
  • Picometer [pm] = 1×10⁻¹² m
  • Femtometer [fm] = 1×10⁻¹⁵ m
  • Attometer [am] = 1×10⁻¹⁸ m
  • Parsec [pc] = 3.0857×10¹⁶ m
  • Astronomical Unit [AU] = 149597870691 m
  • Nautical Mile (int.) = 1852 m
  • Furlong = 201.168 m
  • Chain = 20.1168 m
  • Rod = 5.0292 m
  • Fathom = 1.8288 m
  • Ell = 1.143 m
  • Hand = 0.1016 m
  • Span = 0.2286 m
  • Inch (survey) = 0.0254000508 m
  • Barleycorn = 0.008466667 m
  • Mil (thou) = 0.0000254 m
  • Angstrom [Å] = 1×10⁻¹⁰ m
  • X-unit = 1.00208×10⁻¹³ m
  • Fermi = 1×10⁻¹⁵ m
  • Planck Length = 1.61605×10⁻³⁵ m