CALCULATOR CATEGORY
Home & DIY Calculators
Free calculators for paint, flooring, tile, lumber, roofing, drywall, concrete and home improvement materials.
12 calculators in this category. Choose a tool below.
Measure first, then convert the measurement into material
Home project calculators are designed to reduce material guesswork. The measurement of the space is only the first step. Paint depends on coverage. Concrete depends on volume. Flooring depends on area plus cuts and waste. Lumber depends on lengths and project layout. Measure the actual project, then use the product specifications to turn the estimate into a purchase quantity.
- Area, volume and linear length answer different material questions.
- Use the coverage or package information from the product you are actually buying.
- Round purchase quantities to realistic boxes, bags, sheets or boards.
Read more: practical calculator guide
Paint
Estimate paint quantity and containers from wall area, coats, coverage and waste.
Concrete
Estimate concrete volume with waste allowance from project dimensions.
Flooring
Estimate flooring square footage and packages including waste allowance.
Tile
Estimate tile area and tile quantity including grout gap and waste assumptions.
Wallpaper
Estimate wallpaper coverage and rolls from wall area, roll coverage and waste.
Deck Material
Estimate decking boards, surface area and waste allowance from deck size and board dimensions.
Room Square Footage
Calculate room floor area, perimeter and optional wall area.
Fence
Estimate fence panels or sections, posts and total material length from perimeter and spacing.
Drywall
Estimate drywall sheets from surface area, sheet coverage and waste.
Insulation
Estimate insulation coverage and packages from surface area and package coverage.
Roofing Material
Estimate roof surface material needs using roof area, waste and package coverage.
Lumber
Estimate board feet, linear feet and material cost for dimensional lumber.