Free Calculators
Wallpaper Calculator - How Many Rolls Do I Need?
How many wallpaper rolls you need - pattern repeat and all.
Walls
ft
Add up every wall
ft
Wallpaper roll
in
ft
in
0 if none
Rolls needed
8
rounded up
Drops
22
full-height strips
Per roll
3
drops
See it for real
Trying a bold wallpaper? See it on your wall first - the Decorva app applies any look to your room from one photo, free.
Questions & answers
Good to know
How many rolls of wallpaper do I need?
Measure the wall width and height, divide the total width by the usable roll width to get the number of drops, account for the pattern repeat, then divide by drops-per-roll. This calculator handles the pattern repeat and subtracts doors and windows for you.
Does pattern repeat change how much wallpaper I need?
Yes - a large pattern repeat means more waste matching the design across drops. Enter the repeat and the calculator factors it into the roll count.
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