Webtype in the amount you want to convert and press the convert button. Convert between the units (ft³ → qt) or see the conversion table. Webhow to convert units of volume. There are two steps to convert a unit of volume to a different unit. First, you'll need to find the conversion ratio, which is the rate of one unit to. Webto convert any value in quarts to cubic feet, just multiply the value in quarts by the conversion factor 0. 033420138888889. So, 40 quarts times 0. 033420138888889 is. Web1 qt = 0. 033420138888875 ft3. To convert 40 quarts into cubic feet we have to multiply 40 by the conversion factor in order to get the volume amount from quarts to cubic feet. Webuse this cubic feet calculator to calculate the cft volume of a space or capacity of an object using width, length, height and area measurements. Just type the number of quarts into the box and hit the calculate button. Webwith this cubic feet calculator, you'll quickly find out the volume in cubic feet. It may help you estimate the volume of a cuboid container, as well as the amount.