All Construction Calculators
Browse our complete collection of free construction and home improvement calculators. All tools are free, require no signup, and give instant results.
Area & Material Calculators
Calculate materials for interior walls, floors, and surfaces.
Paint Calculator
Calculate gallons of paint needed for any room. Accounts for doors, windows, and multiple coats of paint.
Flooring Calculator
Estimate flooring materials with waste factor. Supports hardwood, laminate, vinyl, and tile.
Concrete Calculator
Calculate cubic yards and bags of concrete for slabs, columns, and steps.
Drywall Calculator
Figure out 4x8 sheets, joint compound, drywall tape, and screws for your room.
Insulation Calculator
Calculate insulation materials, R-values, thickness, cost, and energy savings for walls, attics, and floors.
Brick & Block Calculator
Calculate bricks, blocks, and mortar bags for any masonry wall. Supports standard, modular, queen, and king bricks.
Lumber Calculator
Calculate board feet, linear feet, and total cost for any lumber project. Includes common sizes reference.
Square Footage Calculator
Calculate area in square feet, square meters, and square yards for rectangles, triangles, circles, and L-shapes. Includes cost estimator.
Outdoor Calculators
Plan outdoor construction and landscaping projects.
Roofing Calculator
Estimate roofing squares and shingle bundles based on roof dimensions and pitch.
Fence Calculator
Calculate fence posts, rails, and pickets based on length, height, and spacing.
Deck Calculator
Estimate decking boards, joists, support posts, and fasteners for your deck.
Mulch Calculator
Calculate cubic yards and bags of mulch for garden beds and landscaping.
Retaining Wall Calculator
Estimate blocks, gravel backfill, drainage pipe, cap stones, and total cost for concrete block, interlocking block, timber, or natural stone retaining walls.
More Calculators
Additional tools for landscaping, structural, and finishing projects.
Gravel Calculator
Estimate cubic yards and tons of gravel, crushed stone, or aggregate.
Tile Calculator
Calculate tiles, grout, and adhesive for floors and walls.
Stair Calculator
Calculate risers, treads, stringer length, angle, and building code compliance for any staircase.
Window & Door Calculator
Calculate rough opening sizes, total area, estimated cost, and R-value by frame type for replacement projects.
Renovation ROI Calculator
Calculate the return on investment for home renovation projects. Compare ROI for kitchens, bathrooms, decks, roofing, and more.
DIY vs Contractor Calculator
Compare DIY and contractor costs for 20+ projects. Includes time investment, break-even analysis, safety risk, and tools needed.
Cost Guides
Compare construction and renovation costs across all 50 US states.
Building Permit Cost Lookup
Look up building permit costs, processing times, required inspections, and documents for 50 major US cities by project type.
Construction Costs by State
Compare construction costs, labor rates, and renovation prices across all 50 states and DC. Interactive cost estimator with state-specific data.