Free Home & DIY Calculators — Paint, Tile, Concrete & More
Home improvement calculators for materials, measurements, and project planning. Free, no signup required.
Square Footage Calculator
Calculate square footage for multiple rooms in different shapes — rectangle, triangle, circle, L-shape. Shows paint and flooring coverage estimates. Free, no signup.
Use Tool →Concrete Calculator
Calculate concrete, gravel, or sand volume for slabs, columns, and circular pads. Shows cubic yards, cubic feet, and number of 60lb / 80lb bags needed. Free, no signup.
Use Tool →Wallpaper Calculator
Calculate exactly how many rolls of wallpaper you need for any room. Accounts for doors, windows, and pattern repeat waste. Free, no signup.
Use Tool →Tile Calculator
Calculate tiles needed for any room with waste factor. Supports 4x4 through 24x24 inch tiles and custom sizes. Shows boxes needed. Free, no signup.
Use Tool →Paint Calculator
Calculate how many gallons of paint you need for any room. Accounts for doors, windows, coats, and ceiling. Cost estimate included. Free, no signup.
Use Tool →Mulch & Topsoil Calculator
Calculate mulch, topsoil, compost, gravel, or sand needed for any garden area. Shows cubic yards, cubic meters, and number of bags. Free, no signup.
Use Tool →Brick & Paver Calculator
Calculate bricks or pavers needed for any project. Accounts for mortar joints and waste. Supports standard bricks, modular bricks, and pavers. Free, no signup.
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