28 free calculators
Find the right calculator for your project. Estimate materials, check dimensions and plan a layout before you buy. Choose a task below to open the calculator and its measuring guide.
Walls & finishes
Wallpaper calculator
Estimate rolls from wall and roll dimensions, including pattern matching and allowances.
Open calculatorPaint and primer calculator
Estimate paint and primer quantities for your area and number of coats.
Open calculatorWall putty calculator
Estimate material and packs for a specified area and layer thickness.
Open calculatorWallpaper paste calculator
Estimate adhesive and packs using the coverage stated for your chosen product.
Open calculatorBatten spacing calculator
Plan evenly spaced battens using your wall width and batten dimensions.
Open calculatorWall moulding calculator
Plan decorative wall frames, their dimensions and the moulding cuts.
Open calculatorSealant calculator
Estimate sealant volume and cartridges from the joint dimensions.
Open calculatorGlass, film & decals
Wall decal size calculator
Check the fit of a decal and the space around it before ordering.
Open calculatorWindow film calculator
Estimate film for glass panels using pane and roll dimensions.
Open calculatorFrosted glass stripe calculator
Plan stripe widths, gaps and film quantity for a glass surface.
Open calculatorFurniture wrap calculator
Estimate adhesive film for furniture panels and wrapping allowances.
Open calculatorWindow tint VLT calculator
Estimate combined light transmission through glass and tint film.
Open calculatorFloors, tiles & ceilings
Tile calculator
Estimate the number of tiles and packs needed for your surface.
Open calculatorFlooring calculator
Estimate flooring area and packs with a cutting allowance.
Open calculatorGrout calculator
Estimate grout from tile size, joint width, depth and tiled area.
Open calculatorTile adhesive calculator
Estimate adhesive and bags using the selected application and product coverage.
Open calculatorSelf-leveling compound calculator
Estimate levelling compound and bags from floor area and fill depth.
Open calculatorEpoxy resin calculator
Estimate resin volume for a pour and the component quantities for your mix ratio.
Open calculatorCeiling tile calculator
Plan ceiling tile quantities and the layout around the edges.
Open calculatorBaseboard calculator
Estimate skirting length and stock pieces for the room perimeter.
Open calculatorStair runner calculator
Estimate runner length from stair dimensions and installation allowances.
Open calculatorCurtains & sewing
Curtain fabric calculator
Estimate fabric using finished curtain dimensions, fullness and sewing allowances.
Open calculatorRoman blind fabric calculator
Estimate face fabric and lining with the allowances for your blind.
Open calculatorCushion cover fabric calculator
Plan fabric pieces and yardage for cushion covers.
Open calculatorDecor & lighting
Gallery wall calculator
Plan a group of pictures with consistent spacing on your wall.
Open calculatorPicture frame and mat calculator
Calculate frame and mat dimensions around your artwork.
Open calculatorLED strip power supply calculator
Estimate power and current requirements for the LED strip length you plan to use.
Open calculatorAcoustic panel coverage calculator
Estimate panel quantities for a chosen coverage area.
Open calculatorHow to use these calculators
- Choose the calculator that matches your task.
- Measure your project, select the available units and enter the material dimensions or coverage.
- Check the result, cutting allowance and product instructions before ordering.
Results are planning estimates. Product coverage, pattern matching, surface condition and installation method can change the amount you need. Each guide explains its inputs and assumptions.
