Wallpaper Calculator
Estimate how many rolls of wallpaper you need.
Room Dimensions
Roll Details
Enter 0 for no pattern match
How to Calculate Wallpaper
1. Measure the total wall perimeter and multiply by height to get total area.
2. Subtract doors and windows.
3. Calculate the usable area per roll (subtracting for pattern repeats/waste).
4. Divide net wall area by usable roll area.