Units & Conversions
Length / Distance Converter
Convert between all common length and distance units used in engineering.
Units:
In mechanical engineering: mm for components, m for structures. In US systems: inches and feet are dominant. 1 inch = 25.4 mm exactly (defined). Microns (µm) are used for surface roughness and tolerance specifications.
1 inch = 25.4 mm | 1 foot = 304.8 mm | 1 yard = 914.4 mm | 1 mile = 1609.344 m
Input
Value iEnter the value to convert.
From unit iSelect the unit to convert from.
Result
Micrometre (µm) [µm]
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Millimetre (mm) [mm]
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Centimetre (cm) [cm]
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Metre (m) [m]
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Kilometre (km) [km]
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Inch (in) [in]
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Foot (ft) [ft]
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Yard (yd) [yd]
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