How much do you need?

Free material calculators for home and garden projects. Every result shows the math, works in feet or metres, and can be saved to a project list.

Most used

ConcreteSlabs, footings and post holes in yards and bags.RoofingRoof area, squares and shingle bundles.SidingSquares, cartons and panels for your walls.GravelCubic yards, tons and bags.TileTiles and boxes for floors and walls.DrywallSheets for walls and ceilings.PaintGallons or litres by coats.

By project

Concrete & masonryConcrete and block walls.Roofing & sidingShingles, roof pitch and siding.InteriorDrywall, paint and tile.LandscapingGravel, mulch, topsoil and pavers.ConversionsYards, tons, feet and metres.

Why trust these numbers

Each calculator uses standard unit conversions and shows every step, so you can check the arithmetic yourself. Where a result depends on a product figure, such as the yield of a concrete bag or the coverage of a gallon of paint, we name the source and let you change it. How we calculate.