Painting & Decorating Calculators

Decorate without the guesswork using our free painting and decorating calculators. Work out how many litres of paint you need for walls and ceilings across multiple coats, and how many rolls of wallpaper to buy for a room.

Both tools let you deduct doors and windows and support metric and imperial units, so you get a clean finish without over-buying.

Painting Calculators(2)

Paint Calculator

Calculate how much paint you need for walls, ceilings and trim based on room dimensions.

Wallpaper Calculator

Calculate the number of wallpaper rolls needed for any room, accounting for pattern repeat.

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