resources Tonnage Calculator > Our Work > Construction Materials > Aggregates > Resources > Tonnage Calculator Enter the information below, then click Calculate. Length (in Feet) Width (in Feet) Depth (in inches) Material Type Fine MaterialsCoarse MaterialsBase Materials Calculate Amount to order (in tons): Calculating Cubic Yards To find cubic yards, first make sure all your measurements are in feet. If depth or any other measurement is in inches, divide that number by 12 to convert it to feet. Next, multiply length, width, and height, then divide that number by 27. (Length x Width x Height) ÷ 27 = Cubic Yards Calculating By Material Size The size of the aggregate material affects how much you’ll need to order. Use the conversion factors below to make sure you have the right amount to finish the job. Fine materials All sands, concrete, and asphalt Cubic Yards x 1.5 = Tons of Material Needed Coarse materials (Gravel or Limestone) 2, 4, 57, 67, 8, 9 Cubic Yards x 1.65 = Tons of Material Needed Base materials 304, 411, screenings Cubic Yards x 1.75 = Tons of Material Needed Have a question about how much to order? Call 614-491-1515 or 800-491-OLEN (6596). We’d be happy to help.