How Many Bags of Concrete Do I Need?
Use concrete bag yield to estimate bag counts for slabs, post holes, steps, and small pads.
Need the calculator? Use the concrete calculator to estimate cubic yards and bag count. Concrete Calculator.
Practical guide
Bagged concrete is convenient for small jobs, but bag counts climb quickly. Estimate cubic feet first, add waste, then divide by the yield printed on the bag.
Use this guide with the related calculator before ordering materials. Supplier specs, local code, soil, load, weather, and site prep can change the final amount.