Buy the right amount of materials — every time

Twelve free calculators for concrete, gravel, mulch, sand, decking, paint and tile. Enter your measurements, get bags, tons, gallons or boards. Nothing leaves your browser.

Stop guessing, stop overbuying

Every DIY project starts with the same question: how much do I need? Buy too little and you make a second trip to the yard. Buy too much and you are hauling bags back for a refund. BuildingsMath gives you the numbers in seconds — cubic yards, bags, tons, boards, gallons or tiles, depending on what your supplier actually sells.

Made for weekend builders

Each calculator shows the formula behind the answer, so you can sanity-check it with a tape measure and a pencil. Everything runs right here in your browser: no accounts, no uploads, no pop-ups covering the results.

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