Home Renovation Toolkit
Measure once, order the right amount.
Every renovation starts with a surface and ends with a shopping list. These calculators turn room dimensions into the paint, flooring, tiles and wallpaper you actually need — including a sensible waste allowance.
Paint Calculator
How much paint your room needs.
Flooring Calculator
Packs of flooring for your room.
Tile Calculator
Count the tiles your project needs.
Wallpaper Calculator
How many rolls to cover a room.
Roofing Calculator
Roof area, squares and shingle bundles.
Concrete Calculator
Volume and bags for a slab or footing.
Looking for something else?
Browse every collection, or tell us what you're trying to work out.