Home & DIY Calculators
Plan projects and buy the right amount of materials. Estimate concrete, paint, tile, and mulch quantities, measure square footage, work out roof pitch, and calculate tank volume.
7 free calculators · no sign-up · instant results
Construction
Materials
Frequently asked questions
How do I estimate materials for a project?
Enter your area or dimensions and the calculator returns the quantity you need — for example bags of concrete, gallons of paint, or boxes of tile — plus a bit of guidance on waste allowance.
What is square footage used for?
Square footage drives most material and cost estimates. Use the Square Footage Calculator first, then feed the result into the paint, tile, or flooring estimate.