Concrete Calculation Guides
Plain-English guides to estimating concrete: the formulas, the unit conversions, and the worked examples behind every calculator on the site. Start here if you want to understand the math, then use the calculators to do it instantly.
- How to Calculate ConcreteThe step-by-step method, formulas, and examples.
- How Much Concrete Do I Need?Size slabs, footings, and posts, then estimate bags.
- Bags of Concrete in a YardFull 40, 60, and 80 lb bag-per-yard chart and math.
- Concrete Cost per YardAverage concrete price per yard, per bag, and per sq ft.