Paint Calculator
Calculate how many litres or gallons of paint you need for any room. Accounts for doors, windows, coats and paint coverage rate.
Calculate nowStop guessing materials. Calculate exactly how much concrete, paint, tiles, flooring, bricks and more you need — in seconds, with metric or imperial units.
Calculate exactly how much paint, wallpaper or primer you need for any room or exterior surface.
Calculate how many litres or gallons of paint you need for any room. Accounts for doors, windows, coats and paint coverage rate.
Calculate nowFind out exactly how many rolls of wallpaper you need, including pattern repeat waste. Works with any room shape.
Calculate nowCalculate the total paintable wall area of any room, automatically deducting doors and windows.
Calculate nowCalculate tiles, hardwood, laminate or carpet area with waste and overage built in.
Calculate how many tiles you need for any floor or wall. Choose tile size, grout width, and waste percentage.
Calculate nowCalculate flooring material for hardwood, laminate, vinyl or engineered wood floors with waste factor included.
Calculate nowFind out how many square metres or yards of carpet you need, including underlay and fitting waste allowance.
Calculate nowCalculate concrete volume, cement bags, sand, gravel, bricks and mortar for any construction project.
Calculate concrete volume for slabs, footings, columns and walls. Outputs cubic metres, cubic yards and bags needed.
Calculate nowCalculate exact proportions of cement, sand and gravel for any concrete mix ratio. Great for DIY mixing.
Calculate nowCalculate how many bricks you need for walls, fireplaces or garden beds. Choose brick size and mortar joint width.
Calculate nowCalculate how much mortar mix you need for bricklaying or stonework. Outputs bags of premix or component quantities.
Calculate nowCalculate roof area, shingles, tiles and other roofing materials needed for any roof shape.
Calculate the total area of your roof accounting for pitch, slope and overhang. Supports gable, hip and flat roofs.
Calculate nowCalculate shingles, tiles, metal sheets or battens needed for your roof with waste and overage included.
Calculate nowCalculate how many deck boards, screws and joists you need for any deck size. Metric and imperial board sizes supported.
Calculate nowCalculate board feet or linear metres of lumber for framing, fencing, decking or any timber project.
Calculate nowCalculate how many rolls or batts of insulation you need for walls, ceilings and floors. R-value guidance included.
Calculate nowCalculate soil, mulch, gravel and fill volumes for any garden, yard or landscaping project.
Calculate cubic metres or cubic yards of soil, topsoil or fill for garden beds, lawns and excavations.
Calculate nowCalculate how many cubic metres, bags or yards of mulch you need for garden beds at any depth.
Calculate nowCalculate the volume and weight of gravel needed for driveways, pathways or drainage. Outputs tonnes, m³ or cubic yards.
Calculate nowPlan your renovation budget with smart cost estimators for whole-home or room-by-room projects.
Estimate your total renovation budget by selecting which areas of your home you're renovating. Includes labour and materials.
Calculate nowGet a detailed cost breakdown for remodelling a single room — kitchen, bathroom, bedroom or living room.
Calculate nowWe designed every calculator from scratch to give you accurate, real-world results — not guesses.
Every calculator comes pre-loaded with sensible defaults — standard paint coverage rates, typical waste percentages, and common concrete mix ratios. Just change what you need.
Toggle between metric and imperial at any point. All values automatically convert. No manual calculations needed — ever.
Get more than just a number. See a full material breakdown — bags, cubic metres, tonnes, litres — so you know exactly what to order.
Inputs are validated in real-time. If you accidentally enter an impossible value, the calculator flags it immediately before you order the wrong amount.
Every results screen includes one-click copy, share link, and print-friendly layout. Perfect for sharing with your builder or taking to the hardware store.
Each calculator includes a how-to guide and FAQ explaining the formulas used. Understand your results, not just the number.