Wallpaper Calculator

Calculating the number of wallpaper rolls you'll need to paper a room can be tricky. You'll need to consider the size of the roll, the area of the room, the number of windows and doors to paper around, and the repeat on the pattern you choose. Use this tool to get a good idea of how many rolls you'll need to buy.

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WALLS

Length of all walls in feet:

Round up to the nearest foot, and be sure to count all length. A room that's 12 x 15, for example, is 12 + 15 + 12 + 15 = 54 feet total in length.

Wall height in feet:

This tool assumes all walls in the room are the same height. If they're not - for example, if your room has a sloped ceiling - use this calculator twice, once for the length and height of one side of the room and once for the length and height of the other.

WINDOWS & DOORS

This calculator will automatically subtract doors and windows from the wall area and reduce the amount of wallpaper you need accordingly.

WINDOW TRIM

Window height in inches:

Window width in inches:

Number of like-sized windows:

Round up to the nearest inch on these measurements.

DOORS AND DOOR TRIM

Door height in inches:

Door width in inches:

Number of like-sized doors:

Round up to the nearest inch on these measurements.

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Wallpaper Calculator

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