Interior Tools

Wallpaper Calculator

Calculate wallpaper rolls needed for your project. Accounts for pattern repeat, doors, windows, and waste. Includes adhesive and primer estimates.

Wall Specifications

Material Estimate

Total Wall Area 0 sq ft
Rolls Needed 0 rolls
Net Area (minus openings) 0 sq ft
Strips Needed 0
Wallpaper Adhesive 0 oz
Wallpaper Primer 0 gal
Seam Roller/Supplies Basic kit
Est. Material Cost $0

Roll Coverage

  • Standard (20.5"): ~56 sq ft/roll
  • European (27"): ~74 sq ft/roll
  • Commercial (36"): ~99 sq ft/roll

Formula

Wall Area = Length × Height × Walls

Net Area = Wall Area - Openings

Strips = Wall Length ÷ Roll Width

Rolls = (Strips × Height) ÷ Roll Length

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