Free construction & home project calculators
Get exact material estimates in seconds — no sign-up, no math, no guesswork. Built to be fast and dead simple on your phone at the hardware store.
Pick a calculator
Concrete Calculator
Cubic yards and bags needed for slabs, footings, and posts.
Paint Calculator
How many gallons to paint a room, with doors and windows.
Flooring Calculator
Square footage and boxes needed, including waste.
Gravel Calculator
Cubic yards, tons, and bags for gravel, sand, or topsoil.
Tile Calculator
How many tiles and boxes you need for any space.
Drywall Calculator
Sheets of drywall for any room, with compound.
Roof Shingle Calculator
Squares and bundles of shingles by roof pitch.
Deck Board Calculator
Boards, screws, and joist hardware for a deck.
Fence Calculator
Posts, rails, pickets, and concrete.
Mulch Calculator
Cubic yards and bags for any garden bed.
Square Footage Calculator
Area in sq ft, yards, meters, and acres.
Board Foot Calculator
Board feet of lumber, the way hardwood is sold.
Cubic Yard Calculator
Any length, width, and depth into cubic yards.
Gallons per Square Foot
Liquid to cover an area to any depth.
Size to Weight Calculator
Weight of a solid block by material.
Square Feet to Cubic Yards
Area plus depth, straight to cubic yards.
More coming
Brick, block, mortar, insulation, BTU, paver…
Why Project Estimator?
Most material calculators online are slow, cluttered with pop-ups, and painful to use on a phone. Project Estimator does one thing well: it gives you the exact amount of material to buy, instantly, so you don't overspend or make a second trip to the store.
Every calculator works right in your browser, updates as you type, and automatically adds a sensible waste allowance you can adjust. No account, no app, no nonsense.