Concrete Calculator

Figure out how much concrete you need — before you order, mix, or pour. Concrete Calculator helps you estimate volume, mix, and cement bags for slabs, columns, footings, walls, and more. Enter the size of the job and get a clear answer in seconds. No guesswork, no leftover piles, and no last-minute trip for extra bags. Built for contractors, masons, site supervisors, and anyone pouring concrete at home. What you can calculate • Concrete volume for slabs, footings, columns, walls, and cylindrical shapes • Cement, sand, and aggregate from common mix ratios (M15, M20, M25, and custom) • Number of cement bags for the pour • Metric and imperial units (meters, feet, inches, yards) • Extra material for waste so you are not short on site Why it helps on a real job Ordering the wrong amount costs money. Too little, and the pour stops. Too much, and you pay for concrete you never use. This app turns length, width, and depth into a volume you can trust, then breaks that volume into mix quantities you can take to the supplier. Use it on a phone in the yard, in the truck, or at the desk when you are pricing a job. The layout is simple on purpose: pick the shape, type the sizes, and read the result. Who it is for • Civil contractors and construction crews • Masons and concrete workers • Engineers checking quantities on site • Homeowners pouring a patio, driveway, or foundation How it works Choose the structure (slab, column, footing, wall, or cylinder). Enter dimensions in the unit you already measure with. Pick a mix grade or your own ratio. Get volume, material quantities, and cement bags in one screen. Keep Concrete Calculator on your phone so the next pour is planned, not guessed. Download it free and check your quantities before you mix.