Free, fast material and project calculators for builders, landscapers and DIYers—estimate quantities and cost in seconds.
Supply Calculator is a free collection of material and project calculators for contractors, landscapers and do-it-yourselfers. Each tool turns simple measurements into the quantities you actually need to order—cubic yards of gravel, tons of stone, sheets of drywall, squares of shingles, deck boards, gallons of paint and more—with a quick cost estimate. Add several areas to total a whole job at once, switch units on any field, and save or share your estimate. Figures are planning estimates; always confirm coverage, density and pricing with your supplier.