Millimeter conversions

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Convert millimeters to

The millimeter conversion selector here selects the length/distance measurement unit to convert to starting from millimeters (mm). To make a conversion starting from a unit of length other than millimeter, simply click on the "Reset" button.

What is millimeter?

The millimetre (or millimeter) is a unit of length in the metric system equal to one thousandth of a meter (1 mm = 10-3 m), the base unit of length in the International System of Units (SI). It is also equal to 0.1 centimeters (cm), or 1,000 micrometers (μm) or 1,000x103 nanometers (nm) (SI units of length), or approximately 3.2808x10-3 feet (ft) or 39.37x10-3 inches (in), which are US customary / Imperial units of length.

The millimeter is commonly used for many everyday length measurements.





Also known as:

millimeter (plural: millimeters, US spelling)