BuildCalc Pro makes free, no-nonsense construction and material calculators — concrete, gravel, tile, paint, drywall and more. Punch in your measurements and get the exact quantity to order, in the units the store actually sells: bags, tons, boxes and gallons.
Why we built it
Guessing at the hardware store wastes money and trips. Order short and the job stops; order long and the money sits in the driveway. Our calculators give you order-ready numbers — with an adjustable 5–10% waste factor built in — so you buy once and build with confidence.
How we keep the numbers right
Every formula is checked against manufacturer bag yields, published material densities and recognised industry references (like Brick Industry Association counts and ASTM material standards) before it goes live. Results are estimates for planning — always confirm against product specs and local conditions before ordering.
Reviewed & verified
Our calculators are reviewed by Ray Whitfield, a licensed general contractor and construction estimator with 22 years in the field (Verified reviewer · ID BCP-EST-01). “I check every figure here the way I’d check a takeoff before calling the supplier — against the bag yield, the material density, and the code. If a number’s off, it doesn’t ship.”
Free, always
No sign-up, no limits, and no ads pushing product — just fast, honest numbers for any job, for DIYers and contractors alike. Browse all 15 calculators →