Wallpaper Calculator
Estimate how many wallpaper rolls a room needs.
Rolls needed8
Wall area35 m²
Includes ~15% extra for pattern matching and trimming.
How to use
Enter your values above and read the result instantly.
How it works
Everything is computed locally in your browser — nothing is uploaded.
Frequently asked questions
Is it free?
Yes, completely free with no limits.
Is my data private?
Yes, all processing happens in your browser.