ConcreteCalc: Bags & Volume

Estimate concrete the way the crew does. Enter the dimensions of a slab, footing, column, round tube or post hole and get the volume in cubic yards and cubic metres, plus the exact number of bags for the bag size you buy. The waste factor pros always add is built into every result. WHAT IT DOES - Five shapes: slabs, strip footings, square columns, round tubes and post holes - Volume in cubic yards and cubic metres, shown side by side - Bag count for any size, from 40 to 90 lb or 20 to 40 kg - A waste factor you set, from 0 to 25 percent, baked into the total - Rebar grid estimate: bars each way, total length and tie points - Multi-pour projects that total volume, bags and rebar across the whole job - PDF and CSV pour reports to hand to your supplier or keep with the job file - Imperial or metric, switch any time - Fast, clean keypad entry built for the field PRIVATE BY DESIGN Everything you enter stays on your iPhone. No account, no cloud, no tracking. FREE AND LIFETIME Free includes the slab calculator, bag counts and the waste factor, so the most common single pour is covered at no cost. The one time Lifetime unlock ($4.99 USD, pay once, no subscription) adds footings, columns, tubes and post holes, the rebar grid, multi-pour projects, and PDF and CSV reports. Built for contractors, landscapers, fence crews and weekend pros who want the number right before they order. Estimates are a planning aid, not an engineering specification. Verify quantities against your supplier and local code before you order.