๐งฑ Construction
Wallpaper Calculator
Wallpaper is sold by the roll but bought by the drop, and a large pattern repeat can waste a third of every roll because each length must be cut to the same point in the pattern. Working from the repeat rather than the wall area is what keeps you from running short.
How it works
Total wall width
Wall height
Roll length
Roll width
Pattern repeat
Doors and windows to deduct
Extra for mistakes
Wall area
Area to cover
Drops needed
Usable length per roll
Rolls to buy
Repeat waste multiplier
Total paper length
Frequently asked questions
How do I use the Wallpaper Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.