Concrete calculators are available at Calculator.net, ConcreteNetwork.com, CalculatorSoup.com and AdvanceReadyMix.com, as of 2015. These websites provide free software applications that determine an estimated amount of concrete necessary for specific projects.
Calculator.net provides a calculator that helps determine the volume and weight of concrete necessary for square and round projects such as slabs, square footings, holes and columns. The website also offers concrete mixing and pouring advice, as well as other calculators for weight loss, math and pregnancy.
ConcreteNetwork.com features calculators for slabs, footings and columns. The calculators give results in yards of concrete or number of pre-mix 40-pound, 60-pound and 80-pound bags. CalculatorSoup.com has a calculator that determines the estimated volume for slabs, walls, footers and columns.