Question: how to figure cubic feet?
Answer: length(feet) × width(feet) × height(feet) = cubic feet(cf³)
length(inches) × width(inches) × height(inches) ÷ 1728 = cubic feet(cf³)
length(yards) × width(yards) × height(yards) × 27 = cubic feet(cf³)
length(cm) × width(cm) × height(cm) ÷ 28316.846592 = cubic feet(cf³)