Wallpaper Rolls Calculator
Work out how many wallpaper rolls a room needs, with a waste allowance.
Quick answer: enter your details below and click Calculate Rolls — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
W
500 New Tools
Enter your details below.
How to use
- Measure the total wall area in square metres.
- Enter the coverage printed on one roll.
- Click Calculate Rolls.
About this tool
Enter the total wall area and the coverage of one roll, and the tool divides one by the other, adds a 10 percent waste allowance for pattern matching and offcuts, and rounds up to whole rolls. The waste figure is shown separately so you can see exactly what it adds.
Frequently asked questions
Do I subtract doors and windows?
You can, but many decorators keep them in the area as a safety margin instead of cutting it fine.
What if the pattern repeat is large?
Use a bigger allowance, since large repeats waste more paper at each strip join.