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Wallpaper Calculator

Inputs

Room Width(ft)

Width of the room in feet

Room Length(ft)

Length of the room in feet

Wall Height(ft)

Height of walls from floor to ceiling in feet

Roll Width(in)

Standard wallpaper roll width, typically 27 or 54 inches

Roll Length(ft)

Length of wallpaper per roll, typically 33 feet (396 inches)

Pattern Repeat(in)

Vertical distance pattern repeats, in inches. 0 for no pattern

Windows & Doors Area(sq ft)

Total area of windows and doors to subtract in square feet

Waste Factor(%)

Extra percentage for pattern matching, cuts, and mistakes

Total Wall Area

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Usable Wall Area

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Adjusted Wall Height

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Roll Coverage Area

—

Rolls Needed

—

Total rolls required for complete coverage

Formula

Rolls = ((Room Perimeter × Adjusted Height × Waste Factor) / Roll Area) + Pattern Adjustment