Cubic Feet
A cubic measurement is the three-dimensional derivative of a linear measure, so a cubic foot is defined as the volume of a cube with sides 1 ft in length.
In metric terms a cubic foot is a cube with sides 0.3048 metres in length. One cubic foot is the equivalent to approximately 0.02831685 cubic metres, or 28.3169 litres.
US Barrels (Federal)
US measurement of volume for dry materials. See also US liquid barrels, US dry barrels, US oil barrels and UK barrels.
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