Free tools
How much do you need to buy?
Free, no sign-up needed. Enter your room's measurements and we'll work out how much to buy - built for UK materials, pack sizes and standard doors and windows, with the sum shown so you can check it yourself.
Paint calculator
Work out litres and tins from your room size, coats and coverage.
Open calculatorTile calculator
Get a tile count and box total from your room and tile size, with wastage built in.
Open calculatorFlooring calculator
Work out how many packs of laminate, vinyl or wood flooring to buy.
Open calculatorWallpaper calculator
Get a roll count that accounts for pattern repeat, not just raw area.
Open calculatorWant to see this in your actual room?
DreamDIY turns a photo of your room and a plain-English description into an AI visualisation, plus the materials list and step-by-step plan to make it happen.