Your project toolbox
Home calculators
Calculators for rooms, walls, paint, wallpaper, tile, flooring, and home material planning. Choose a calculator, enter your measurements, and see the working behind the result.
Measurements
Start with room, wall, and surface measurements before estimating materials.
Room Area Calculator
Calculate room area or flat ceiling area from length and width.
Open calculatorWall Area Calculator
Calculate total wall area from room length, width, and wall height, with optional door and window deductions.
Open calculatorCurtain Size Calculator
Estimate total curtain width, curtain drop, and optional width per panel from window size, fullness ratio, and allowances.
Open calculatorBlinds Size Calculator
Estimate blind width and blind height for inside or outside mount using window measurements and optional allowances.
Open calculatorPaint & wall coverings
Estimate wall finishes such as paint and wallpaper from measured areas.
Paint Calculator
Estimate how much paint you may need for walls based on area, coats, coverage, and waste allowance.
Open calculatorPrimer Calculator
Estimate primer quantity from surface area, primer coats, coverage, and optional waste allowance.
Open calculatorWallpaper Calculator
Estimate wallpaper rolls using a drop-based method that accounts for roll length, roll width, room height, pattern repeat, and waste allowance.
Open calculatorTile & grout
Plan tile quantities and related materials for floors and walls.
Tile Calculator
Estimate the number of tiles needed from area, tile size, waste allowance, and optional tiles per box.
Open calculatorTile Adhesive Calculator
Estimate how many tile adhesive bags you need from tiled area, coverage per bag, and waste allowance.
Open calculatorGrout Calculator
Estimate grout weight from tiled area, tile size, joint width, joint depth, and waste allowance.
Open calculatorFlooring & carpet
Estimate flooring packs, carpet area, and related floor-covering quantities.
Carpet Calculator
Estimate carpet area from room length, room width, and optional waste allowance.
Open calculatorFlooring Pack Calculator
Estimate how many flooring packs you need from floor area, pack coverage, and waste allowance.
Open calculatorLaminate Flooring Calculator
Estimate laminate flooring planks from room size, plank size, expansion gap, waste allowance, and optional planks per pack.
Open calculatorConcrete & materials
Estimate bulk home project materials such as concrete as this section expands.
Outdoor & landscaping
Estimate outdoor home project materials such as gravel, mulch, and simple landscaping quantities.
Gravel Calculator
Estimate gravel volume for a rectangular path, driveway section, garden bed, or outdoor home project.
Open calculatorMulch Calculator
Estimate mulch volume for a rectangular garden bed, planting area, or outdoor home project.
Open calculatorFence Calculator
Estimate fence panels and posts for a simple straight fence run using total length, gate width, panel length, and waste allowance.
Open calculatorTrim & finishings
Plan finishing materials such as skirting, baseboards, and trim.
Wall Panel Calculator
Estimate wall panel quantities, compare panel orientations, and preview a straight-grid layout with an optional door or window.
Open calculatorBaseboard / Skirting Calculator
Estimate how many baseboard or skirting boards you need from room size, openings, board length, and waste allowance.
Open calculatorA useful starting point
Check the details
before you order.
Coverage, cuts and product sizes can change what you need. Each calculator explains what it includes and what to check against the instructions for your chosen material.
How these estimates work →