How Many Gallons of Water in a Cubic Foot?

There are 7.48 gallons in cubic foot and 748 gallons in one hundred (100) cubic feet (hcf). In order to express large volumes of water use, this water use is expressed in acre feet numbers. One acre foot equals 43,560 cubic feet or 435.6 hundred cubic feet and is equivalent to 326,700 gallons. Just imagine one acre foot of land covered by one foot deep in water.