Wallpaper Calculator
How many rolls you need — pattern matching included.
Wall area to cover:
Double rolls needed:
How to use this calculator
Enter room dimensions and door/window areas, then press Calculate. Wall area and double rolls needed are shown.
What the result means
Roll count includes pattern waste — matching patterns use extra paper per strip. Always buy from the same batch.
Frequently asked questions
How does pattern repeat affect my count?
Large repeats need 20-30% extra because each strip must line up with the next.
What's a double roll?
Most wallpaper is sold in double rolls covering about 56 square feet.