Wallpaper Calculator (Rolls & Cost)
Estimate the number of wallpaper rolls and total cost for a room. Accounts for pattern repeat, doors, windows. Standard US double roll = 33 ft × 20.5 in.
LIFESTYLEEstimate the number of wallpaper rolls and total cost for a room. Accounts for pattern repeat waste, doors, and windows. Standard US double roll = 33 ft × 20.5 in.
Pattern repeat is the vertical distance before the design starts again — typical 18-24 inches for straight match. Random-match papers (no repeat) waste less. The calculator counts strips around the perimeter and divides by strips per roll (after subtracting repeat allowance per strip).
Wallpaper Calculator
Estimate the number of wallpaper rolls and total cost for a room. Accounts for pattern repeat waste, doors, and windows. Standard US double roll = 33 ft × 20.5 in.
Roll Specs
Buy 1 extra roll for waste, mistakes, and future patching. Order from the same dye lot if possible. Bold patterns or random-match papers can reduce waste vs straight-match. Hang professionally if you've never papered before — fixing a wrong cut is more expensive than the labor.