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Calculate wallpaper cost from wall area, roll coverage and price — see rolls needed, material and total.
Calculate wallpaper cost from wall area, roll coverage and price — see rolls needed, material and total.
Enter values above and click Calculate — results will appear here with the formula explained.
Wallpaper rolls needed is wall area divided by roll coverage times waste, rounded up. Total is rolls times price per roll.
Pattern repeat adds waste: large repeat 18 inches needs more than small 6 inches. This uses waste percent to account.
For YMYL home budgeting, add 1 extra roll for future repairs — dye lots vary.
Calculate wallpaper cost from wall area, roll coverage and price — see rolls needed, material and total. Formula: Rolls = ceil(area / coverage * (1+waste)). Example: With 400 sq ft, 56 coverage, $50/roll, 10% waste: need 400/56=7.14*1.1=7.86 → 8 rolls, $400 total.
Wallpaper rolls needed is wall area divided by roll coverage times waste, rounded up. Total is rolls times price per roll.
Pattern repeat adds waste: large repeat 18 inches needs more than small 6 inches. This uses waste percent to account.
For YMYL home budgeting, add 1 extra roll for future repairs — dye lots vary.
With 400 sq ft, 56 coverage, $50/roll, 10% waste: need 400/56=7.14*1.1=7.86 → 8 rolls, $400 total.
Formulas are standard public references (see our methodology). External standards are cited in the text where they apply.
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