Free Home Improvement Calculators
Plan materials, measurements, and home projects with fast, practical calculators—no signup required.
Search by project, material, or measurement.
Calculator library
Practical tools for materials, area, and project measurements.
Concrete Calculator
Calculate concrete volume, cubic yards, and approximate bag quantities.
Open calculatorSquare Footage Calculator
Find the combined area of rooms, walls, or other rectangular spaces.
Open calculatorPaint Calculator
Estimate wall paint after doors, windows, coats, and coverage are considered.
Open calculatorMulch Calculator
Calculate mulch volume in cubic yards, cubic feet, meters, and bags.
Open calculatorRoof Pitch Calculator
Convert rise and run into pitch ratio, slope percentage, and angle.
Open calculatorConcrete Slab Calculator
Plan concrete volume, surface area, and bags for one or more slabs.
Open calculatorConcrete Bag Calculator
Convert project dimensions or known volume into whole concrete bag quantities.
Open calculatorConcrete Footing Calculator
Calculate concrete volume for repeated rectangular footings.
Open calculatorConcrete Driveway Calculator
Estimate concrete volume for one or more driveway sections.
Open calculatorConcrete Block Calculator
Estimate concrete masonry units from wall, opening, block, and joint dimensions.
Open calculatorBrick Calculator
Estimate brick quantity with editable brick and mortar-joint dimensions.
Open calculatorPaver Calculator
Calculate paver quantity for multiple areas with an adjustable waste allowance.
Open calculatorCubic Yard Calculator
Convert rectangular material volume into cubic feet, yards, and meters.
Open calculatorRoofing Calculator
Estimate pitched roof surface area, waste-adjusted area, and roofing squares.
Open calculatorShingle Calculator
Estimate whole shingle bundles from known area or pitched dimensions.
Open calculatorRoofing Squares Calculator
Convert square feet, square meters, and roofing squares directly.
Open calculatorGutter Calculator
Total gutter runs and estimate selected stock-section quantities.
Open calculatorGravel Calculator
Estimate gravel volume for multiple areas with depth and waste.
Open calculatorTopsoil Calculator
Plan topsoil volume for lawns, beds, and raised landscape areas.
Open calculatorSod Calculator
Measure multiple lawn areas and add an adjustable sod waste allowance.
Open calculatorGrass Seed Calculator
Estimate seed weight from lawn area and an editable application rate.
Open calculatorSoil Volume Calculator
Calculate material-neutral soil volume for rectangular or circular spaces.
Open calculatorRetaining Wall Material Calculator
Estimate block courses and quantities from entered wall and block dimensions.
Open calculatorFlooring Calculator
Combine room areas and add waste for flooring purchase planning.
Open calculatorTile Calculator
Estimate whole tiles from project areas, tile dimensions, and waste.
Open calculatorLaminate Flooring Calculator
Estimate laminate purchase area and packages from entered coverage.
Open calculatorHardwood Flooring Calculator
Estimate hardwood purchase area and cartons from entered coverage.
Open calculatorCarpet Calculator
Calculate carpet area for multiple rooms in square feet, yards, and meters.
Open calculatorInterior Paint Calculator
Estimate interior wall and optional ceiling paint with editable openings and coverage.
Open calculatorExterior Paint Calculator
Estimate exterior wall paint after openings, coats, and coverage.
Open calculatorPrimer Calculator
Estimate primer from multiple surface areas, coats, and editable coverage.
Open calculatorFence Calculator
Estimate posts and panels for multiple fence runs with editable spacing and openings.
Open calculatorFence Post Calculator
Count posts per fence run from an editable maximum spacing and endpoint assumption.
Open calculatorFence Picket Calculator
Estimate pickets from fence length, picket width, gap, and waste.
Open calculatorDeck Board Calculator
Plan deck-board rows, linear length, and stock-board quantity for a rectangular layout.
Open calculatorDeck Material Calculator
Summarize surface area, board length, purchase boards, and editable fastener quantity.
Open calculatorBoard Foot Calculator
Calculate board feet for multiple lumber sizes and quantities.
Open calculatorLumber Volume Calculator
Convert multiple lumber entries into cubic inches, feet, and meters.
Open calculatorPlywood Sheet Calculator
Estimate whole sheet-goods panels from multiple areas, editable sheet size, and waste.
Open calculatorWall Stud Calculator
Estimate studs by wall run with editable spacing, endpoints, and waste.
Open calculatorFraming Material Calculator
Summarize basic studs, plates, wall area, and stock pieces from explicit assumptions.
Open calculatorDrywall Calculator
Estimate whole drywall sheets from walls, ceilings, openings, sheet size, and waste.
Open calculatorDrywall Mud Calculator
Estimate joint compound from known area, passes, and editable product coverage.
Open calculatorInsulation Calculator
Estimate insulation area and whole packages using editable coverage and waste.
Open calculatorWallpaper Calculator
Estimate whole wallpaper rolls from walls, openings, editable roll dimensions, and waste.
Open calculatorLinear Feet Calculator
Add repeated segment lengths and convert the total between feet, inches, yards, and meters.
Open calculatorCubic Feet Calculator
Combine rectangular volumes and convert cubic feet to inches, yards, and meters.
Open calculatorWall Area Calculator
Calculate gross and net wall area after separate door and window deductions.
Open calculatorBrowse by category
Move from a project type to the measurements and materials that matter.
Lumber & Framing
Prepare dimensions for structural project planning.
Fencing & Decking
Organize perimeter, spacing, and surface measurements.
Drywall & Insulation
Plan wall and ceiling coverage by measured area.
Enter project measurements. Use US customary or metric units where supported.
Adjust real-world details. Account for sections, openings, coats, depth, or waste when relevant.
Review the calculation. See practical totals alongside formulas and stated assumptions.