Wallpaper Calculator

Wallpaper and Border Calculator – Quantity Calculator

Measuring Tape for Wallcovering InstallationThere are many ways of calculating the number of wallpaper rolls required for a project. Depending on which method is used, the end result may vary. For the Love of Wallpaper is not responsible for the accuracy of the final number. To ensure you have sufficient product for your project and to also have product on hand for possible future usage, we recommend purchasing an additional double roll of wallpaper above what the Calculator formula suggests. This formula is short and simple but does not account for the specific width of the wallpaper pattern, the size of pattern repeats or the size of window/door openings or other special room conditions. As a general rule of thumb, the larger the repeat, the more wallpaper rolls are needed and the larger the windows and doors, the fewer wallpaper rolls are needed.

Simple Quantity Calculation Formula:

  • Take the total room square footage (take dimensions of room x height of room) and divide by 24.
  • Deduct 2 single wallpaper rolls for up to every 4 standard size openings (windows or doors).


How to measure your room for wallpaper10×12 room with an 8′ ceiling, 2 windows and 1 door:


10+10+12+12= 44×8=352/24=14.7


Deduct 2 rolls for the 3 openings=12.7 or 13 rolls

For Borders:

To determine the number of Border packs required, it is only necessary to take the room dimensions in feet and divide by 15 (each pack of border contains 15′) and allow extra footage for the border pattern match.