How to use
  • Type your value into appropriate edit box.
  • Converter will translate the value into other systems automatically as you type.
Accuracy - number of significant decimal digits:
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 Popular Conversions 
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  • how many meters make one mile
  • how many kilometers make a mile
  • how many meters are in a foot
  • astronomical units to kilometers
  • kilometers in 1 nautical mile
  • convert cable to nautical mile
  • Light Year to miles conversion
  • how many inches make one mile
Metric Units Imperial and US Units
millimeter [mm] inch [in]
centimeter [cm] foot [ft]
decimeter [dcm] yard [yd]
meter [m] mile [mi]
kilometer [km] league
Nautical Units Astronomical Units
Cable Astronomical Unit [au]
Nautical Mile [NM] Light Year
Nautical League Parsec
Kilometer vs. Mile Example
If you want to know how many kilometers make one mile, simply type '1' into the edit box labeled 'mile' and the edit box labeled 'kilometer' will show you the result. On the other hand, if you type '1' in 'kilometer' box, 'mile' edit box will show you: 'how many miles make one kilometer' (edit box 'yard' shows: 'how many yards make one kilometer', 'inch' edit box shows 'how many inches make one kilometer', etc)

Fundamental unit of length in the International System Of Units (SI) is: meter (metre) [m].
Unitin meters
Metric Unit System
millimeter [mm]0.001
centmeter [cm]0.01
decimeter [dcm]0.1
meter [m]1
kilometer [km]1000
Imperial and US Unit System
inch [in]0.0254
foot [ft]0.3048
yard [yd]0.9144
mile [mi]1609.344
Nautical Units
nautical mile [NM]1852
nautical league5556
Astronomical Units
astronomical unit [au]149.597870691e+9
light year [ly]9.4605e+15
parsec [pc]3.086e+16


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