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Free construction calculators for paint, concrete, flooring, fencing, and drywall. Estimate materials and costs for your DIY projects.
Calculate how much paint you need for your project
Calculate concrete needed for your project
Calculate blocks, mortar & sand for walls
Calculate exactly how many tiles you need for floors, walls, or backsplash
Estimate spray foam project costs
Calculate stair dimensions and materials
Calculate roof pitch, angle, and slope factor
Calculate rafter length & cut angles
Calculate pavers needed for patio, walkway, or driveway
Calculate deck boards needed for your project
Calculate lumber board feet & cost
Calculate studs & framing materials
Calculate rebar for concrete slabs
Calculate area for rooms and spaces
Calculate roofing shingles needed
Estimate new home building costs
Calculate cement, sand & aggregate quantities
Calculate topsoil needed for landscaping projects
Calculate cement and sand for wall plastering
Calculate fence materials needed
Free cubic yards & bags calculator with instant results
Calculate flooring materials and costs
Calculate drywall sheets and supplies
Calculate gravel tons and costs
Calculate tons of asphalt for paving
Calculate wallpaper rolls needed for a room
Plan your construction and home improvement projects with confidence. Our calculators help you estimate materials, calculate costs, and avoid waste for painting, flooring, concrete, roofing, and more.
Calculate exactly how much paint, concrete, lumber, or flooring you need.
Estimate project costs before you start to stay on budget.
Order the right amount of materials to minimize waste and extra trips.
Simple inputs designed for homeowners tackling projects themselves.
Accurate calculations contractors can rely on for bids and planning.
Work in feet, meters, yards, or whatever units you prefer.
Select the calculator for your project type - paint, flooring, concrete, etc.
Measure your space and enter dimensions accurately.
Account for doors, windows, and other areas that don't need material.
Review the material quantity needed plus recommended overage.
Use the estimate for purchasing and project planning.
Calculate gallons needed for walls, ceilings, and trim including primer and multiple coats.
Determine square footage and add appropriate waste factor for tile, hardwood, or carpet.
Calculate cubic yards for patios, driveways, footings, and slabs.
Figure out squares of shingles and underlayment needed for roof replacement.
Generally add 10% for paint and simple projects, 10-15% for flooring (more for diagonal patterns), and 5-10% for concrete. Complex shapes or inexperienced installers need more overage.