About CalcLoft

CalcLoft is a free collection of home improvement calculators built for DIYers, homeowners and small contractors. We turn confusing material math into simple answers: how much paint, tile, concrete, flooring, or drywall your project really needs.

Every calculator on this site is free, with no sign-up required. All calculations run in your browser — nothing you type is sent to a server.

Why we built this

Most people either over-buy (wasting money) or under-buy (making extra trips to the store and risking color or dye-lot mismatches). Our calculators use the same formulas and waste allowances contractors use, so you can order with confidence the first time.

Contact

Questions, feedback, or a calculator you would like to see added? Contact us at [email protected].