400 Millimeters (mm) to Feet (ft)
400 Millimeters (mm) to Feet (ft), Millimeters - Feet calculator. What is 400 Millimeters in Feet. You can calculate more units with our Converter Unit Tools
The millimeter (mm) and foot (ft) are units used to measure length. Use one of the conversion calculators below to convert to another unit of measure, or read on to learn more about millimeter.
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Length Units Conversion
Length is referred to as the distance between two points or the measure of a distance between two endpoints of an object. In other words, length is the measurement of things from end to end. The method of converting the measures of length from one unit to another is called length conversion.
Millimeters (mm)
The millimetre (international spelling; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the International System of Units (SI), equal to one thousandth of a meter, which is the SI base unit of length. Therefore, there are one thousand millimeters in a meter. There are ten millimeters in a centimeter.
Foot (feet)
The foot (plural feet), standard symbol is ft, is a unit of length in the British imperial and United States customary systems of measurement. The prime symbol, U+2032, is a customarily used alternative symbol. Since the International Yard and Pound Agreement of 1959, one foot is defined as 0.3048 meters exactly. In both customary and imperial units, one foot comprises 12 inches and one yard comprises three feet.
Source: Wiki