Home & DIY Calculators
Wallpaper Calculator
Enter wall dimensions and roll size to calculate how many strips and rolls of wallpaper you need.
4 strips/roll
27 strips needed total
7 rolls
Including 15% waste
How to use this tool
- 1Enter total wall width and height.
- 2Enter your wallpaper roll's width and length.
- 3Enter a waste percentage for pattern matching.
- 4See rolls needed.
Frequently asked questions
Why do I need extra for pattern matching?+
Patterned wallpaper needs to align between strips, which wastes some material — plain wallpaper needs less of a buffer.