Concrete Calculator | Volume Calculator | Concrete2you
5 inches = 0.42 feet. 8 inches = 0.67 feet. 11 inches = 0.92 feet. 3 inches = 0.25 feet. 6 inches = 0.5 feet. 9 inches = 0.75 feet. This same principle applies when dealing in metric. If you enter your first two measurements, (for example, 5 metres x 3 metres) and your depth is 6 inches or 150mm, you would enter this as 5m x 4m x 0.150 = 2.3 ...