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.
More coming
Drywall, mulch, BTU, deck boards, fence posts…
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.