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Home & DIY Calculators
Free calculators for every home project — paint, flooring, wallpaper, electricity bills, concrete and more. Get accurate estimates before you buy.
🎨 Decorating
Paint Calculator
Enter room dimensions to calculate how many litres of paint you need. Supports walls, ceiling and trim.
Decorating
Wallpaper Calculator
Calculate how many rolls of wallpaper you need based on room size and roll dimensions.
Decorating
Tile Calculator
Calculate how many tiles you need for any floor or wall. Enter room and tile size for instant results.
Decorating
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🏗️ Flooring & Construction
Flooring Calculator
Calculate how many packs or planks of flooring you need. Supports laminate, hardwood and vinyl.
Flooring
Concrete Calculator
Calculate cubic metres of concrete and number of bags needed for slabs, footings and columns.
Construction
Gravel Calculator
Calculate how much gravel or aggregate you need for driveways, paths and gardens by area and depth.
Construction
Brick Calculator
Calculate how many bricks you need for a wall based on dimensions and brick size.
Construction
Room Area Calculator
Calculate the area of any room — rectangle, L-shape or irregular. Perfect for flooring and decorating.
Measurement
Fence Calculator
Calculate how many fence panels, posts and rails you need for any garden or property boundary.
Construction
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⚡ Energy & Bills
Electricity Bill Calculator
Calculate your electricity bill from units (kWh) used and your tariff rate. Monthly and annual estimates.
Energy
Solar Panel Savings Calculator
Estimate how much you could save on electricity bills by installing solar panels at home.
Energy
Water Usage Calculator
Estimate your household water usage and bill based on daily habits and occupants.
Energy