About MaterialsCalc

MaterialsCalc makes free calculators that answer one simple question: how much material do I actually need to buy?Whether you're pouring a slab, mulching a garden bed or tiling a bathroom, buying the right amount the first time saves money and extra trips to the store.

Every calculator uses the standard formulas contractors and suppliers use, adds a sensible margin for waste, and shows the math plainly, in cubic yards, bags, boxes or gallons, so you can check it yourself. There's no signup and no app to download.

We currently cover 11 materials and add more regularly. Estimates are for planning only; always confirm final quantities with your supplier, since real projects vary.