Construction & Home Calculators
Plan any home or building project without over- or under-buying. Work out square footage, how much concrete, paint, tile, flooring or brick you need, size an air conditioner to a room, and estimate material costs. Each calculator adds a sensible waste allowance and shows the working so you can adjust it to your site.
Square Footage CalculatorRoom area in sq ft and m², with waste and cost.
Concrete CalculatorSlab volume in m³/yd³ and pre-mix bags needed.
Paint CalculatorLitres of paint from wall area, coats and openings.
Tile CalculatorTiles and boxes needed for a floor or wall.
Flooring CalculatorBoxes of flooring from area and pack coverage.
Roofing CalculatorTrue sloped roof area from footprint and pitch.
Brick CalculatorBricks for a wall, including mortar and waste.
Fence CalculatorPosts, panels and rails from fence length.
Gravel & Sand CalculatorGravel/sand/mulch volume and tonnage from area & depth.
Staircase CalculatorSteps, rise and going from total floor-to-floor height.
Wallpaper CalculatorWallpaper rolls from wall size and pattern repeat.
Carpet CalculatorCarpet length and area from room size and roll width.
Deck CalculatorDeck boards, joists and screws from deck size.
Pool Volume CalculatorPool water volume in litres and gallons.
BTU / AC Sizing CalculatorAC cooling capacity (BTU & kW) for a room.
Electricity Cost CalculatorAppliance running cost per day, month and year.
Construction Cost EstimatorRough build/renovation budget from area × rate.