Calculator Inputs
ft
ft
ft
sq ft
in
0 for no pattern match
$
Results
416.00 sq ft
Total Wall Area
344.00 sq ft
Paintable Area
12 rolls
Rolls Needed
$540.00
Estimated Cost
About This Calculator
Estimate how many rolls of wallpaper you need for a room. Accounts for walls, doors, windows, and pattern repeat waste.
Pattern Repeat Impact
- No repeat (0\") — No extra waste
- Small repeat (6-12\") — ~10% extra waste
- Large repeat (18-24\") — ~15-20% extra waste
Pro Tip
Always buy 1-2 extra rolls. Dye lots can vary between production runs.
Frequently Asked Questions
How many rolls of wallpaper for a 12x12 room?
For a 12×12 room with 8 ft ceilings, 2 doors, and 2 windows, you need approximately 4 rolls of standard wallpaper (30 sq ft coverage, no pattern repeat).
What does 'pattern repeat' mean?
Pattern repeat is the vertical distance before the pattern repeats. When aligning patterns between strips, this creates waste — typically 10-20% depending on the repeat size.