Home › Calculators › Home & Construction Calculators
Home & Construction Calculators
Concrete, paint, flooring, tile, roofing, lumber, drywall and home improvement calculators. 99 free tools that run in your browser, no sign-up needed.
Search results
No tools match your search.
Square Footage CalculatorTotal sq ft and m² for rooms of any shape, with cost estimate.Concrete CalculatorEstimate concrete volume, bags and cost.Paint CalculatorHow much paint for a room, minus doors and windows, in gallons or liters.Tile CalculatorHow many tiles and boxes you need for a floor or wall, with waste.Flooring CalculatorWork out flooring area, boxes needed and cost with waste allowance.Drywall CalculatorCount drywall sheets, screws, joint compound and tape for walls and ceilings.Brick CalculatorEstimate bricks, mortar volume and mortar bags for a wall, minus openings.Fence CalculatorWork out fence posts, rails, pickets and concrete bags for any fence length.Deck CalculatorDeck boards, joists, posts, screws and total cost from your deck size.Wallpaper CalculatorWork out how many rolls of wallpaper you need, with pattern repeat and waste.Stair CalculatorFind riser height, tread run, stringer length and angle, with IRC code checks.Board Foot CalculatorAdd up board feet and lumber cost for any list of boards, nominal or actual size.Insulation CalculatorFind the R-value to add for your climate zone and how many batts or blown-in bags to buy.Rain Gutter CalculatorSize gutters and downspouts from roof area, roof pitch and local rainfall intensity.Moving Cost CalculatorCompare DIY truck, full-service movers and container costs, with truck size and packing estimates.Concrete Block CalculatorCount concrete blocks (CMU) for a wall, minus doors and windows, plus mortar bags.Roof Pitch CalculatorConvert rise and run or an angle to roof pitch x/12, degrees, slope % and rafter multiplier.TV Size CalculatorFind a TV or monitor's width, height and area from its diagonal and compare two screens.TV Viewing Distance CalculatorBest seating distance for your TV size and resolution (SMPTE, THX, 4K), or the best TV size.Price per Square Foot CalculatorFind price per sq ft or m², total price or area, and compare several homes by value.House Flipping CalculatorFix-and-flip profit, ROI and 70% rule max offer from purchase, rehab, holding and sale costs.Stud CalculatorCount wall studs and plates from wall length, spacing, corners and openings.Carpet CalculatorCarpet for your rooms in sq ft and sq yd from a 12 or 15 ft roll, with padding and cost.Baseboard CalculatorLinear feet of baseboard and number of pieces for your rooms, minus doorways.Grout CalculatorGrout in kg, lb and bags from tile size, joint width, depth and area.Asphalt CalculatorTons of asphalt from area and thickness at 145 lb/ft³, with volume and cost.Sand CalculatorSand in cubic yards, m³, tons and bags for any area and depth.Siding CalculatorSiding squares, panels and J-channel from walls and gables minus doors and windows.Concrete Steps CalculatorConcrete volume and bags for poured steps from step count, rise, run, width and landing.Baluster Spacing CalculatorNumber of balusters and exact gap and on-center spacing for a railing under the 4-inch rule.Caulk CalculatorCaulk volume and number of 10.1 oz cartridges or squeeze tubes from joint length and size.Ceiling Fan Size CalculatorCeiling fan blade span, downrod length and minimum airflow (CFM) for any room.Concrete Mix Ratio CalculatorCement bags, sand, gravel and water for any concrete mix ratio (1:2:3, 1:2:4, M15, M20).Curtain Size CalculatorCurtain length, panel width and number of panels from your window size and fullness.Deck Stain CalculatorGallons of deck stain or sealer for the floor, railing and stairs, by coats and wood condition.Dehumidifier Size CalculatorPints-per-day dehumidifier capacity for your room size and dampness, old and new ratings.Epoxy Resin CalculatorEpoxy volume for river tables, countertops, floors and coasters, with resin:hardener split.Fence Post Concrete CalculatorConcrete volume and number of 40, 50, 60 or 80 lb bags for fence post holes.Heating Cost CalculatorYearly heating cost for gas, propane, oil, electric, heat pump and wood pellets compared.Home Appreciation CalculatorProject home value by year from a growth rate or find the rate from today's value, with equity.Home Maintenance Cost CalculatorYearly and monthly home upkeep budget using the 1% rule, cost per sq ft or home age.Joist Span CalculatorMaximum floor or deck joist span for any lumber size, spacing, species, grade and load.Linear Feet CalculatorAdd up lengths or convert square feet to linear feet by board width, with boards and cost.Lumens CalculatorLumens a room needs from foot-candle targets, plus bulb count and watts-to-lumens equivalents.Mortar CalculatorMortar volume and bags for brick or block walls from wall area, unit size and joint thickness.Moving Box CalculatorEstimate how many small, medium and large moving boxes, tape and packing paper you need.Picture Hanging Height CalculatorExact nail height for a frame at 57 in eye level or above furniture, plus gallery spacing.Plywood Sheet CalculatorHow many 4x8 plywood or OSB sheets you need for a floor, wall or roof, with waste and cost.Quilt Size CalculatorQuilt dimensions, blocks across and down, backing yardage and batting for any bed size.Rafter Length CalculatorRafter length, run, rise, plumb and seat cut angles from span, roof pitch and overhang.Recessed Lighting Layout CalculatorNumber of can lights, spacing and wall offset for a room, with a scaled ceiling grid plan.Home Sale Proceeds CalculatorEstimate the cash you keep after selling a home: commission, closing costs, taxes and payoff.Shiplap CalculatorBoards, linear feet, rows and nails for a shiplap wall, minus doors and windows.Tankless Water Heater Size CalculatorPeak GPM, temperature rise and the BTU or kW size a tankless water heater needs.TV Mounting Height CalculatorIdeal TV center and wall bracket height from screen size, eye height and seating distance.Water Heater Size CalculatorRecommended tank size and first-hour rating from household size and peak-hour hot water use.Household Water Usage CalculatorGallons and liters your household uses per day, month and year by activity, plus the cost.AC Running Cost CalculatorFind what your air conditioner costs to run per hour, day and month from BTU, SEER and your rate.Balloon Garland CalculatorHow many balloons for a garland or arch: counts by size and color, packs, helium and build time.Bathroom Remodel Cost CalculatorEstimate a bathroom remodel by size, type and finish, with itemized tile, vanity and labor.Board and Batten CalculatorBattens, spacing, linear feet and cost for a board and batten accent wall or siding.CFM CalculatorFind the CFM a fan needs for a room from its size and air changes per hour.Christmas Lights CalculatorLight strands, bulbs, watts and strands per circuit for a tree, roofline or shrubs.Cost to Build a House CalculatorEstimate the cost to build a house by size, stories, quality, garage, basement and region.House Painting Cost CalculatorEstimate paint gallons, supplies and labor cost to paint a house inside or out.Countertop CalculatorSquare footage and installed cost of countertops, including L/U shapes and backsplash.Crown Molding CalculatorMiter and bevel settings for crown molding plus linear feet, pieces and a cut list.Cut List OptimizerLay out plywood and MDF parts on sheets with kerf and grain, and print the cutting diagrams.Deck Footing CalculatorConcrete volume, 40–80 lb bags and form tubes for round or square deck footings.Dumpster Size CalculatorEstimate cubic yards and tons of debris and pick the right 10–40 yard roll-off dumpster.Heat Pump Savings CalculatorCompare your gas, propane, oil or electric heating cost with a heat pump and see the payback.Kitchen Remodel Cost CalculatorEstimate a kitchen remodel by size, finish level and scope with an itemized cost breakdown.Metal Roofing CalculatorPanel count and cut lengths, screws, ridge cap and trim for a metal roof.Moving Truck Size CalculatorCount your furniture and boxes to get cubic feet and the right moving truck, 10 to 26 ft.Projector Throw Distance CalculatorThrow distance, screen size and image height from your projector's throw ratio.Roof Replacement Cost CalculatorEstimate the cost of a new roof from footprint, pitch, material and tear-off layers.Rug Size CalculatorFind the right rug size for a living room, bedroom or dining room, with a placement preview.Solar Panel Output CalculatorDaily, monthly and yearly kWh from your solar panels, and what that power is worth.Space Heater Cost CalculatorCost to run a space heater per hour, day, month and season, high vs low vs eco.Storage Unit Size CalculatorList your furniture and boxes to find the right storage unit, 5x5 to 10x30, with fill %.Event Table CalculatorHow many tables and chairs for a wedding or party, with head table, linens and floor space.Attic Ventilation CalculatorFind the attic net free vent area (1/150 or 1/300) and how many ridge, soffit and box vents.Concrete Weight CalculatorWeight of a concrete slab, block or cylinder in lb, kg and tons, with hauling loads.Deck Railing CalculatorPosts, rails, balusters, post caps and hardware for your deck railing runs.Drywall Mud CalculatorJoint compound buckets, tape rolls and drywall screws from square feet or sheets and finish level.Even Spacing CalculatorSpace shelves, posts, pickets or pictures evenly: equal gap, on-center spacing and every mark.HVAC Replacement Cost CalculatorEstimate the installed cost and tonnage of a new AC, furnace, heat pump or mini-split.Linear Cut OptimizerFit cut lengths onto boards, pipe or bar stock with saw kerf: cutting plan, waste and board count.Clay Shrinkage CalculatorFired size from wet size, throw size for a target, or shrinkage % from a test tile.SEER Savings CalculatorAnnual savings and payback from upgrading to a higher SEER or SEER2 air conditioner.Self-Leveling Concrete CalculatorBags of self-leveling underlayment, mixing water and primer from floor area and depth.Septic Tank Size CalculatorRecommended septic tank gallons and drain field size from bedrooms and occupants.Spiral Staircase CalculatorPlan a spiral stair: treads, riser height, tread angle, walkline depth and headroom checks.Spray Foam CalculatorBoard feet of open or closed-cell spray foam, kits needed, R-value and cost from area and depth.Stair Carpet CalculatorCarpet for stairs in square and linear yards, or stair runner length, from steps and landings.Stucco CalculatorStucco volume, bags of mix, lath sheets and sand from wall area, coats and thickness.Thinset CalculatorBags of thinset mortar from tile area and trowel notch size, with back-buttering allowance.Wainscoting CalculatorBox layout, panels, rails, stiles, beadboard sheets and cap trim linear feet for any room.Water Softener Size CalculatorDaily grains and the right water softener capacity from hardness, iron and household size.
About Home & Construction Calculators
Estimate materials for home projects: concrete, paint, flooring, tile, drywall, lumber and roofing. Most contractors add 5 to 10% extra for waste and cuts, so allow for that when you order.
Most used here: Square Footage Calculator, Concrete Calculator and Paint Calculator.