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Wallpaper Calculator

Rolls, paste, and tools โ€” for peel-and-stick, pre-pasted, or traditional wallpaper.

Wallpaper Type

Pattern Repeat

Ceiling Height

Room Dimensions

For one accent wall only: enter the wall width as Length, leave Width at 0.

Deductions

Doors (21 sq ft each)
1
Windows (15 sq ft each)
2
See My Shopping List โ†’
Wall area (net)
381 sq ft
14
rolls needed
48 ft perimeter ยท 9 ft ceiling ยท 10% waste allowance

Your Shopping List

Based on the dimensions on the left โ€” edit them to match your project and this updates as you type.

14
Peel & Stick Wallpaper (single rolls, ~30 sq ft each)

14 rolls โ€” covers 381 sq ft net wall area with 10% waste allowance

Tip: Order 1โ€“2 extra rolls for pattern matching. Peel-and-stick is forgiving โ€” you can reposition while hanging.

1
Wallpaper Smoothing Tool Set (squeegee + brush)

Removes air bubbles and ensures full contact with the wall

Tip: Work from the center of each strip outward to push bubbles to the edges.

1
Wallpaper Seam Roller

Rolls seams flat for invisible joints between strips

1
Digital Level + Chalk Line

Hanging plumb reference lines is the #1 step most DIYers skip โ€” crooked first strip ruins the whole room

Tip: Never use a door frame as your plumb reference โ€” most door frames are not perfectly vertical.

1
Utility Knife + Extra Blades (25-pack)

For trimming at ceiling, baseboard, and outlets โ€” change blades often for clean cuts