If you have concrete delivered it is sold by the yard which is a cubic yard. Volume in Cubic Meters m 3 Volume in Cubic Feet ft 3 x 00283. Cubic feet of concrete CF Number of bags of concrete needed.
Dividing cubic feet by 27 a cubic yard will give you the concrete yardage.
Following are the formulas to calculate how much concrete you will require for a circular slab. Convert the volume from feet to cubic yards to get the number of cubic yards of concrete youll need. Dividing cubic feet by 27 a cubic yard will give you the concrete yardage. You can use this concrete calculator to help you determine the number of bags of QUIKRETE Concrete Mix Mortar Mix or Fast-Setting Concrete you will need for the following projects.