Construction & Home Calculators
335 free construction & home calculators in Other. The first 4 have a full write-up: the method, a worked example and questions specific to that calculator.
- BTU CalculatorSize heating and cooling in BTUs for a room's dimensions, climate and insulation.
- Concrete CalculatorCalculate concrete volume and bags needed for slabs, footings, columns and stairs.
- Roofing CalculatorCalculate roof area, squares and shingle bundles from footprint and pitch.
- Stair CalculatorDesign a code-compliant staircase: rise, run, stringer length and headroom.
- AC BTU Sizing CalculatorFind the right AC/BTU capacity for a room based on area, sun and occupancy.
- AC Size in TonsEstimate the air conditioner capacity a space needs.
- Adhesive CoverageFind how many tubes or gallons of adhesive a job needs.
- Air Purifier CoverageFind the room size an air purifier can serve at the right air changes.
- Air Purifier Size CalculatorFind the right air purifier CADR for a room size.
- Animal Housing AreaFree Animal Housing Area calculator with clear step-by-step results.
- Appliance Energy CostEstimate the monthly and yearly cost of running an appliance.
- Asbestos/Lead Paint CalculatorEstimate abatement cost for asbestos or lead paint by area and method.
- Attic Conversion CostFree Attic Conversion Cost calculator with clear step-by-step results.
- Attic Ventilation CalculatorCalculate required attic net free vent area and the intake to exhaust split.
- Basement Finishing CostFree Basement Finishing Cost calculator with clear step-by-step results.
- Bathroom Remodel Cost CalculatorEstimate the cost of a full bathroom remodel by size and finish.
- Bathroom Renovation CostFree Bathroom Renovation Cost calculator with clear step-by-step results.
- Battery Backup CalculatorSize home battery storage for a target backup runtime on critical loads.
- Bedroom Layout CalculatorCheck if your furniture fits a bedroom layout.
- Blinds Cleaning Time CalculatorEstimate how long it takes to clean all the blinds in a home.
- Blinds Size CalculatorMeasure the right window blind width and drop for inside or outside mount.
- Block CountCount concrete blocks for a wall.
- Block QuantityFree Block Quantity calculator with clear step-by-step results.
- Boiler CostFree Boiler Cost calculator with clear step-by-step results.
- Boiler/Furnace Sizing CalculatorSize a boiler or furnace from heat loss and appliance efficiency.
- Brick CountCount the bricks needed for a wall including mortar joints.
- Brick Count CalculatorEstimate how many bricks you need for a wall including mortar joints.
- Brick QuantityFree Brick Quantity calculator with clear step-by-step results.
- Brick/Block CalculatorCalculate brick or block quantities and mortar for a masonry wall.
- Cabinet CostFree Cabinet Cost calculator with clear step-by-step results.
- Car Rental Total CostFree Car Rental Total Cost calculator with clear step-by-step results.
- Carbon Monoxide Alarm CheckPlan carbon monoxide alarm placement and count.
- Carpet Area CalculatorCalculate carpet needed for a room in sq ft or sq m, including underlay.
- Carpet CostEstimate carpet, padding, labor and total cost for a room.
- Carpet vs HardwoodCompare the lifetime cost of carpet against hardwood flooring.
- Caulk CoverageFind the linear feet a tube of caulk seals.
- Caulk QuantityEstimate caulk tubes needed to seal long joints.
- Ceiling AreaFree Ceiling Area calculator with clear step-by-step results.
- Ceiling Fan Size CalculatorPick the right ceiling fan blade span for a room size.
- Ceiling Fan vs ACCompare the cost of running a fan versus an air conditioner.
- Ceiling Height to Floor Area CalculatorCalculate room floor area from ceiling height and volume.
- Ceiling PaintPlan paint for a ceiling from the room footprint.
- Cement Sand AggregateFree Cement Sand Aggregate calculator with clear step-by-step results.
- Chimney Liner CalculatorSize a chimney liner from appliance output and flue height.
- Chimney Size CalculatorFind the right chimney and flue size for a fireplace.
- Circuit LoadCheck how loaded a branch circuit is from its outlets.
- Circuit Load CalculatorCheck if a home circuit is overloaded by its connected devices.
- Cleaning Solution DilutionMix a concentrated cleaner to the right dilution for a spray bottle.
- Closet Rod Length CalculatorCalculate closet rod and shelf length for your wardrobe.
- Co Parenting Expense SplitFree Co Parenting Expense Split calculator with clear step-by-step results.
- Concrete Bag CalculatorFind how many bags of concrete mix you need for a slab or footing.
- Concrete BagsFree Concrete Bags calculator with clear step-by-step results.
- Concrete PostFigure concrete and bags for setting fence posts.
- Concrete Slab CostEstimate concrete volume and cost for a slab pour.
- Concrete VolumeCalculate concrete in cubic yards and bags for a slab.
- Concrete VolumeCalculate the concrete needed for a slab in cubic yards.
- Conduit FillCheck what fraction of a conduit the wires occupy.
- Conduit Fill CalculatorCheck conductor fill percentage against the allowable limit for a conduit.
- Cooling Load per RoomEstimate cooling load from room size, sun and occupancy.
- Countertop CostFree Countertop Cost calculator with clear step-by-step results.
- Crawl Space Encapsulation CalculatorCalculate liner area, dehumidifier size and cost for crawl space encapsulation.
- Curtain FabricEstimate the fabric yards needed to make curtains.
- Curtain Size CalculatorDetermine curtain width, length and fabric needed for any window.
- Cut ListPlan how many boards a cut list needs including kerf.
- Deck Board CountFree Deck Board Count calculator with clear step-by-step results.
- Deck Board SpacingFind the number of deck boards spaced with gaps.
- Deck CalculatorCalculate joists, decking boards and footings for a timber deck.
- Deck CostFree Deck Cost calculator with clear step-by-step results.
- Deck Joist SpacingCalculate deck joist spacing from a few simple inputs generally.
- Deck Lumber CalculatorCount the boards, joists and posts needed to build a deck.
- Deck Post ConcreteEstimate the concrete needed to set deck posts.
- Deck Staining Cost CalculatorEstimate deck staining or sealing cost by deck area.
- Dehumidifier CostEstimate how much running a dehumidifier adds to your bill.
- Dehumidifier Size CalculatorPick the right dehumidifier pint capacity for your room size.
- Dishwasher Capacity CalculatorCalculate how many place settings a dishwasher can wash per load.
- Dishwasher vs HandwashCompare the water and energy cost of a dishwasher to handwashing.
- DIY Project CostFree DIY Project Cost calculator with clear step-by-step results.
- Door Replacement CostFree Door Replacement Cost calculator with clear step-by-step results.
- Drain SlopeVerify a drain pipe's slope against the required fall.
- Drill Speed (RPM)Find the recommended drill RPM for a bit and material.
- Driveway ConcreteEstimate concrete for pouring or resurfacing a drive.
- Driveway CostFree Driveway Cost calculator with clear step-by-step results.
- Driveway GravelVolume and cost of gravel needed to refresh a drive.
- Driveway Paving CalculatorEstimate the cost to pave or repave a driveway.
- Driveway Size CalculatorFind the ideal driveway width and length for your cars.
- Drywall CalculatorCalculate drywall sheets, compound, tape and screws for a room.
- Drywall CostFree Drywall Cost calculator with clear step-by-step results.
- Drywall Joint CompoundEstimate joint compound for taping and finishing drywall.
- Drywall MudEstimate the joint compound needed to finish drywall.
- Drywall ScrewCount drywall screws for a number of gypsum sheets.
- Drywall ScrewsFree Drywall Screws calculator with clear step-by-step results.
- Drywall SheetsFind how many drywall sheets cover a wall or ceiling.
- Duct Size CalculatorSize round and rectangular ducts from airflow and target velocity.
- Electric Bill EstimateEstimate your monthly electricity bill from usage and rate.
- Electrical Conduit FillFree Electrical Conduit Fill calculator with clear step-by-step results.
- Electrical Load CalculatorCalculate dwelling electrical load and required service size with demand factors.
- Electrical Panel Size CalculatorEstimate the electrical panel amperage your home needs.
- Electricity Bill EstimatorEstimate your monthly electricity bill from appliance usage and local rate.
- Epoxy CoverageEstimate two-part epoxy for a garage or floor.
- Fan Power CostSee the running cost of a fan compared by speed setting.
- Fastener CountEstimate how many screws or nails a sheathing job needs.
- Fastener QuantityFree Fastener Quantity calculator with clear step-by-step results.
- Fence Board CountFree Fence Board Count calculator with clear step-by-step results.
- Fence CalculatorCalculate fence posts, panels, concrete and gate allowances.
- Fence Cost CalculatorEstimate the total cost of building a fence including materials and labour.
- Fence Length & CostEstimate the length and material cost of a boundary fence.
- Fence Material CalculatorEstimate posts, rails and panels needed for a fence run.
- Fence Painting Cost CalculatorEstimate the cost of painting or staining a fence.
- Fence PanelCount panels and posts for a straight fence run.
- Fence Post CountFree Fence Post Count calculator with clear step-by-step results.
- Fence Post DepthFind how deep to bury a fence post and its concrete.
- Fence Post SpacingCalculate fence post spacing from a few simple inputs generally.
- Fireplace/Stove CalculatorSize a wood, gas or pellet stove to the room it must heat.
- Firewood Quantity CalculatorEstimate how much firewood you need for a heating season.
- Floor AreaFree Floor Area calculator with clear step-by-step results.
- Flooring AreaCalculate the flooring material needed with a waste allowance.
- Flooring CalculatorCalculate flooring packs and waste allowance for a room.
- Flooring WasteAdd waste allowance to a room area for flooring orders.
- Footing ConcreteCalculate concrete for round piers or footings.
- Foundation Cost CalculatorEstimate the cost of a home foundation slab by area.
- Framing LumberEstimate studs, plates and lumber cost for a wall.
- French Drain CalculatorCalculate gravel, pipe, fabric and fall for a French drain trench.
- Fridge Size for FamilyPick the right refrigerator volume in litres for your household size.
- Furnace CostFree Furnace Cost calculator with clear step-by-step results.
- Furniture Spacing CalculatorPlan comfortable spacing between furniture pieces in a room.
- Garage Conversion CostFree Garage Conversion Cost calculator with clear step-by-step results.
- Garage Heater Size CalculatorCalculate the heater size needed to warm a garage.
- Garage Size CalculatorWork out the garage dimensions needed for one or two cars.
- Garage Storage CalculatorEstimate garage shelving and storage needed by items.
- Garden Bed CostFree Garden Bed Cost calculator with clear step-by-step results.
- Garden FertilizerFind how much fertilizer meets a target nitrogen rate.
- Garden Hose Flow CalculatorCalculate garden hose water flow rate and fill time.
- Garden SoilFind soil volume and bags needed for a raised garden bed.
- Gas Bill EstimatorEstimate your bill from gas usage, price per therm and fixed charges.
- Gas vs Electric HeatCompare the fuel cost of gas, resistance and heat-pump heating.
- Gas vs Electric Heating CostCompare the running cost of gas heating versus electric heating.
- Gate WidthSplit an opening into single or double gate leaves.
- Generator Run Time CalculatorEstimate how long a generator runs on a full tank at a given load.
- Generator SizeEstimate the generator wattage needed for essential loads.
- Generator Sizing CalculatorSize a standby generator from running and motor starting loads.
- Gravel CalculatorEstimate gravel volume, weight and cost for driveways and paths.
- Gravel QuantityFree Gravel Quantity calculator with clear step-by-step results.
- Gravel Volume & WeightEstimate gravel in cubic yards and tons for paths and bases.
- Grout EstimateEstimate the amount of grout needed for a tiled area.
- Grout QuantityEstimate grout volume for a tiled floor or wall.
- Gutter CostFree Gutter Cost calculator with clear step-by-step results.
- Gutter Slope CalculatorFind the correct gutter fall per metre for proper drainage.
- Handrail HeightPlan railing height, length and mounting posts for stairs.
- Hardwood Floor Cost CalculatorEstimate hardwood flooring material and installation cost for any room.
- Hardwood Flooring CostFree Hardwood Flooring Cost calculator with clear step-by-step results.
- Heat Pump PaybackFree Heat Pump Payback calculator with clear step-by-step results.
- Heater BTU SizingSize a space heater by BTU for the room you want to heat.
- Heater Size CalculatorCalculate the heater wattage or BTU needed for a room.
- Home Backup PowerFree Home Backup Power calculator with clear step-by-step results.
- Home Emergency Fund CalculatorSet a target emergency fund based on monthly expenses and income risk.
- Home Energy Audit CalculatorConvert a blower door result into air changes per hour and an airtightness rating.
- Home EV Charging TimeFree Home EV Charging Time calculator with clear step-by-step results.
- Home Generator Size CalculatorSize a whole-home or essential-load generator for your home.
- Home Heating CostEstimate the monthly cost of heating a home from its size.
- Home Insurance Coverage CalculatorEstimate the dwelling coverage you need to rebuild your home.
- Home Insurance EstimateEstimate annual homeowners insurance from rebuild value.
- Home Maintenance BudgetBudget for upkeep using the rule-of-thumb share of home value.
- Home Maintenance CostBudget an annual home-maintenance reserve as a percentage of home value generally.
- Home Office Layout CalculatorPlan a home office layout for desk, chair and storage.
- Home Renovation BudgetFree Home Renovation Budget calculator with clear step-by-step results.
- Home Renovation Budget CalculatorBuild a renovation budget including a 10-20% contingency buffer.
- Home Repair BudgetSet aside the right amount monthly for expected home repairs.
- Home Security Camera CoverageDetermine how many security cameras you need to cover your property.
- Home Value per Square FootFind the price per square foot of a home listing.
- Home Water Bill EstimatorEstimate your monthly water bill from household size and usage habits.
- Hot Tub Running Cost CalculatorEstimate monthly electricity cost to run a hot tub.
- Hot Tub VolumeEstimate the water volume of a rectangular hot tub.
- House Cleaning Time CalculatorEstimate how long it takes to clean a home by size and rooms.
- House Painting Cost CalculatorEstimate interior or exterior painting cost including labour.
- Household Chore Split CalculatorDivide household chores fairly between housemates or partners.
- Household Utility CostTotal monthly electricity, water and gas bills and project yearly spend.
- HVAC Load Calculator (Manual J Simplified)Estimate heating and cooling loads and equipment size for a dwelling.
- HVAC Load EstimateFree HVAC Load Estimate calculator with clear step-by-step results.
- HVAC Replacement CostFree HVAC Replacement Cost calculator with clear step-by-step results.
- Indoor Humidity LevelCheck whether an indoor humidity reading is comfortable and healthy.
- Insulation CalculatorCalculate insulation thickness and quantity to reach a target R-value.
- Insulation CostFree Insulation Cost calculator with clear step-by-step results.
- Insulation R-ValueCombine insulation layers into a total R-value and heat loss.
- Inverter Battery Backup CalculatorCalculate how long an inverter and battery keep your load running.
- Irrigation CostFree Irrigation Cost calculator with clear step-by-step results.
- Joist Span EstimateEstimate a conservative floor joist span from its depth.
- Kitchen Remodel Cost CalculatorEstimate kitchen renovation cost by size and quality tier.
- Kitchen Renovation CostFree Kitchen Renovation Cost calculator with clear step-by-step results.
- Ladder Height CalculatorFind the safe ladder length needed for a given working height.
- Laundry Detergent DoseWork out the right detergent dose for your load and water hardness.
- Laundry Time CalculatorWork out total laundry time including sorting, washing, drying and folding.
- Lawn Installation CostFree Lawn Installation Cost calculator with clear step-by-step results.
- Leak Detection Cost CalculatorEstimate the cost of a hidden plumbing leak from usage and water rate.
- LED Lighting CalculatorCalculate lumens, fixture count and wattage to reach a target light level.
- Light Bulb Brightness CalculatorConvert lumens, watts and lux to pick the right bulb for a room.
- Lightbulb Cost vs LEDCompare the running cost of old bulbs against LEDs.
- Lighting Watts per Room CalculatorEstimate the total wattage needed to light a room.
- Lumber Board FeetConvert lumber size and length into board feet and cost.
- Lumber CostPrice dimension lumber from board feet and per-foot rates.
- Lumen per Room CalculatorFind the total lumens needed to light a room to a target lux level.
- Mattress Size CalculatorCompare mattress sizes and find the best fit for your room.
- MDF SheetOrder MDF panels for cabinetry and shelving work.
- Mini-Split Sizing CalculatorSize ductless mini-split heads and the outdoor unit for a multi-zone system.
- Mold Remediation CalculatorSize containment air changes and HEPA filtration for mould remediation.
- Monthly Utility BudgetTotal your monthly utility bills and see their share of income.
- Mortar MixFree Mortar Mix calculator with clear step-by-step results.
- Motion Sensor PaybackEstimate savings from replacing an always-on light with a motion sensor.
- Moving Box CalculatorEstimate how many moving boxes you need by room and household size.
- Moving CostFree Moving Cost calculator with clear step-by-step results.
- Moving Cost CalculatorEstimate moving costs from home size, distance and packing services.
- Mulch CalculatorCalculate mulch volume in cubic yards and bags for any bed size and depth.
- Mulch QuantityFree Mulch Quantity calculator with clear step-by-step results.
- Mulch VolumeEstimate mulch in cubic yards and bags for a bed.
- Mulch/Soil/Gravel CalculatorConvert a landscaping area and depth into cubic yards, bags or tonnes.
- Packing Time CalculatorEstimate how many hours packing a home takes by room.
- Paint CalculatorCalculate paint and primer quantities for walls, ceiling and trim.
- Paint CoverageFind how many gallons of paint cover your walls and ceilings.
- Paint NeededEstimate how many gallons of paint you need for room walls.
- Patio CostFree Patio Cost calculator with clear step-by-step results.
- Patio MaterialPavers and sand base needed for a patio project.
- Paver QuantityFree Paver Quantity calculator with clear step-by-step results.
- Paver WasteAdd breakage and cuts to a paver order total.
- Paver/Patio CalculatorCalculate pavers, base aggregate and bedding sand for a patio.
- Picket CountCount fence pickets spaced along a fence line.
- Pipe Fill VolumeFind the volume and fill time of a length of pipe.
- Playroom Size CalculatorEstimate playroom size needed for toys and play equipment.
- Plumbing Flow RateEstimate the flow rate of a pipe from pressure and diameter.
- Plywood SheetTally plywood sheets for an area with waste factored in.
- Plywood SheetsCount plywood panels for wall and roof sheathing.
- Pool Heating Cost CalculatorEstimate the cost to heat a swimming pool by size and temperature.
- Pool Installation CostFree Pool Installation Cost calculator with clear step-by-step results.
- Pool VolumeCalculate the water volume and fill cost of a swimming pool.
- Pool Volume CalculatorCalculate the water volume of a pool by shape and depth.
- Primer QuantityFree Primer Quantity calculator with clear step-by-step results.
- Project HoursEstimate total and calendar hours for a DIY job.
- Project Labor CostFree Project Labor Cost calculator with clear step-by-step results.
- Project Material CostTotal material and labor cost with a waste markup.
- Property TaxEstimate annual and monthly property tax from assessed value.
- Radiant Floor Heat CalculatorCalculate tubing length, loop count and output for underfloor heating.
- Radon Mitigation CalculatorSize a sub-slab depressurisation system and estimate the post-mitigation level.
- Rafter CutFree Rafter Cut calculator with clear step-by-step results.
- Rafter LengthFree Rafter Length calculator with clear step-by-step results.
- Railing Post SpacingCount railing posts and check the actual spacing.
- Rain Gutter CalculatorSize gutters and downspouts from roof area and rainfall intensity.
- Ramp SlopeFind ramp length for a chosen slope and rise.
- Rebar CalculatorCalculate rebar length, bar count and weight for a slab or footing grid.
- Rebar LengthEstimate the rebar needed for a slab in both directions.
- Refrigerator Running CostEstimate the annual running cost of your refrigerator.
- Renovation CostEstimate a renovation budget by room type and quality.
- Rental Car Fuel CostFree Rental Car Fuel Cost calculator with clear step-by-step results.
- Retaining Wall BlocksFree Retaining Wall Blocks calculator with clear step-by-step results.
- Retaining Wall CalculatorCalculate blocks, base aggregate and geogrid for a segmental retaining wall.
- Retaining Wall CostFree Retaining Wall Cost calculator with clear step-by-step results.
- Roof LoadFree Roof Load calculator with clear step-by-step results.
- Roof PitchFree Roof Pitch calculator with clear step-by-step results.
- Roof Repair CostFree Roof Repair Cost calculator with clear step-by-step results.
- Roof Replacement CostFree Roof Replacement Cost calculator with clear step-by-step results.
- Roof Shingle CalculatorCalculate the number of roof shingle bundles needed for your roof.
- Roofing ShinglesFree Roofing Shingles calculator with clear step-by-step results.
- Roofing SquaresFree Roofing Squares calculator with clear step-by-step results.
- Room Paint CostEstimate how much paint a room needs and what it will cost.
- Room Paint Needed CalculatorEstimate how much paint you need for walls and ceilings, including coats.
- Room Square FootageFind the total square footage of an L-shaped or irregular room.
- Room Volume CalculatorCalculate the cubic volume of a room for HVAC and fans.
- Rug Size CalculatorChoose the right area rug size for a bed, sofa or dining table.
- Sanding TimeEstimate how long it takes to sand a surface.
- Sauna Size CalculatorPick the right sauna heater size for your sauna room.
- Septic Tank CalculatorSize a septic tank and drain field from occupancy and soil percolation rate.
- Shelf Spacing CalculatorPlan shelf spacing for books, decor and storage boxes.
- Shingle CountEstimate the roof shingle bundles needed.
- Siding CalculatorCalculate siding squares, trim and corner posts for an exterior wall.
- Siding CostFree Siding Cost calculator with clear step-by-step results.
- Smoke Detector Count CalculatorDetermine how many smoke detectors your home needs by floor.
- Solar Panel CalculatorSize a rooftop solar array from consumption, sun hours and panel rating.
- Solar Panel PaybackEstimate the payback period of a home solar installation.
- Solar Panel Payback CalculatorWork out how many years solar panels take to pay back at your electricity rate.
- Space Heater Cost CalculatorEstimate the running cost of a space heater per hour and month.
- Square Feet to Square MetersConvert between square feet, square meters and acres.
- Square Footage CalculatorMeasure area in square feet, metres or yards for any room shape, plus material cost.
- Stair Rise & RunWork out step rise, run and stringer length for stairs.
- Stair Riser & TreadSplit a total rise into comfortable risers and treads.
- Stair StringerLay out a staircase stringer from rise and run.
- Standby Generator Cost CalculatorEstimate the installed cost of a standby generator.
- Standby Power CostCalculate the cost of electronics left on standby all year.
- Stud CountFree Stud Count calculator with clear step-by-step results.
- Stud SpacingCount wall studs and top/bottom plates for framing.
- Study Room Layout CalculatorPlan a study room layout for desk, books and lighting.
- Sump Pump CalculatorSize a sump pump from inflow rate, lift height and basin capacity.
- Sump Pump Size CalculatorChoose the right sump pump capacity for your basement.
- Tank Fill TimeFind how long a tank takes to fill at a given flow rate.
- Tile AdhesiveEstimate thinset or adhesive bags for a tile job.
- Tile CalculatorWork out how many tiles and boxes you need, including waste allowance and grout.
- Tile CountCount the tiles needed for a floor or wall with waste.
- Tile CountCount how many tiles you need for a floor or wall.
- Tile Flooring CalculatorCount the tiles needed for a floor or wall including waste allowance.
- Tile QuantityFree Tile Quantity calculator with clear step-by-step results.
- Tile WasteInclude breakage and cuts when ordering tile.
- Toilet Water UsageEstimate the water a toilet uses and the cost of its flushes.
- Torque ConversionConvert torque between newton-meters and other units.
- Tree Planting CostFree Tree Planting Cost calculator with clear step-by-step results.
- Tree Removal CostFree Tree Removal Cost calculator with clear step-by-step results.
- Trim MoldingEstimate baseboard and crown molding length for a room.
- Trim PaintFigure out paint for baseboards, molding and window trim.
- United States Concrete CostCalculate concrete cost from a few simple inputs in the United States.
- United States Flooring CostCalculate flooring cost from a few simple inputs in the United States.
- United States Home RepairCalculate home repair from a few simple inputs in the United States.
- United States Paint CostCalculate paint cost from a few simple inputs in the United States.
- United States Tile CostCalculate tile cost from a few simple inputs in the United States.
- UPS Load Capacity CalculatorCheck if a UPS can handle your connected device load and runtime.
- Utility Deposit CalculatorEstimate the deposit needed to start electricity, water or gas service.
- Wall AreaFree Wall Area calculator with clear step-by-step results.
- Wall Paint QuantityTurn a known wall area into gallons and cans of paint.
- Wallpaper CostPrice out wallpaper rolls and any store discount.
- Wallpaper QuantityFree Wallpaper Quantity calculator with clear step-by-step results.
- Wallpaper RollEstimate how many wallpaper rolls a room will need.
- Wallpaper Roll CalculatorWork out how many wallpaper rolls a room needs with pattern repeat matching.
- Wallpaper RollsWork out how many wallpaper rolls a room requires.
- Wardrobe Size CalculatorPick the right wardrobe width for your clothing collection.
- Washing Machine Load CalculatorFind the right wash load size by weight for your machine.
- Water Bill EstimateEstimate a monthly water bill from household usage and rate.
- Water Heater CostEstimate the annual cost of heating water for your household.
- Water Heater Cost CalculatorEstimate annual running cost of your water heater.
- Water Heater Size CalculatorFind the right water heater tank size for your household.
- Water Heater Sizing CalculatorSize a tank or tankless water heater from peak household demand.
- Water Pressure DropEstimate pressure loss in a pipe from length and flow.
- Well Pump CalculatorSize a submersible well pump from depth, flow demand and pressure requirement.
- Window Replacement CostFree Window Replacement Cost calculator with clear step-by-step results.
- Window Replacement PaybackEstimate the energy savings and payback of new windows.
- Window Tint CalculatorEstimate window film needed and solar heat savings.
- Window/Door CalculatorCalculate heat loss and running cost for windows and doors by U-factor.
- Wire Size CalculatorSelect conductor size from current, run length and voltage drop limit.
- Wiring Voltage DropEstimate the voltage drop over a length of wire.
- Wood Stain CoverageEstimate how much wood stain a deck or fence needs.
- Woodworking MaterialConvert a project's boards into board feet and cost.
- Workbench Height CalculatorFind the ergonomic workbench height for your own height.