How many rolls of wallpaper do I need?
Divide total wall square footage (minus doors and windows) plus waste by the coverage per roll. A standard double roll covers about 57 sq ft.
Wallpaper Calculator
Measure each room in feet and inches. Default roll is a 21-inch × 33-foot double roll. Add pattern repeat if your paper has a repeating design.
Rooms
ft
in
ft
in
ft
in
Roll settings
Standard double roll: 21"
Common: 33 ft
0 for no repeat
$
Frequently asked questions
How does pattern repeat affect rolls?
Repeating patterns waste paper when strips must align. Enter your repeat in inches — the calculator adds extra waste automatically.
Should I buy an extra roll?
Yes. Keep one extra roll for future repairs and in case of color lot differences. The waste percentage helps cover matching cuts.
Paint Calculator · https://paint-calculator.ca