##### Concrete Calculator - Find Out How Many Yards You Need ,

Know MoreQuickly calculate concrete slab and footing pours by entering the depth, width and length to find the number of cubic yards or bags of concrete needed for your project Give these calculations to your ready-mix supplier or use them to estimate how many 40, 60 or 80 lb bags of concrete to buy...

## What Is the Formula for Concrete Mix? | Reference

Know MoreThe formula for concrete mix is one part cement, two parts sand and three parts gravel or crushed stone If hand mixing, it's inadvisable to exceed a water to cement ratio of 055, which translates to 55 pounds of water for every 100 pounds of cement When mixing concrete, it's necessary to ensure that there is an adequate amount of aggregate...