Wallpaper Calculator
How many rolls of wallpaper for a room
Hanging wallpaper? Enter the total wall area to estimate how many rolls you need, with extra built in for pattern matching.
How many rolls of wallpaper?
A single roll yields roughly 25 usable ft² after trimming and matching. Patterned papers waste more, so we add 15% by default. Buy all rolls from the same batch number for consistent color.
Frequently asked questions
How much wallpaper do I need?
Measure wall length × height for area, then divide by ~25 ft² per single roll, adding 15% for pattern matching.
Why does pattern repeat matter?
Large repeats waste more paper as you align the pattern between strips, so they need extra rolls.