How much concrete for a 2ft wide by 3ft deep footer?

To calculate the amount of concrete needed for a footer that is 2 feet wide and 3 feet deep, you would also need to know the length of the footer. However, if we assume a length of 1 foot, the volume would be 2 ft (width) x 3 ft (depth) x 1 ft (length) = 6 cubic feet. To convert this to cubic yards, divide by 27, resulting in approximately 0.22 cubic yards of concrete needed for a 1-foot long section. Adjust the length as necessary to find the total volume for your specific footer dimensions.