FREE Online Measurements Converters and Calculators
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Metric <-> Imperial <-> Metric

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Convert between U.S./Imperial and SI (Metric) units

Type your value in a box, click the button next to that box, and all unit conversions in the same category will be calculated.

SI (Metric)
kilometer (km)
meter (m)
decimeter (dm)
Almost never used
centimeter (cm)
millimeter (mm)
Nautical Length Measure
Nautical mile (nmi)

U.S. and Imperial Length Measure
Mile (mi)
Furlong (fur)
Yard (yd)
Foot (ft)
Inch (in)