Wallpaper roll calculator
Enter the actual dimensions of one physical roll, even if it is sold as a double roll. Openings are not subtracted.
Eight calculators.
One clear estimate.
Wallpaper roll calculator
How we calculate
Add trimming allowance to wall height and round the strip length up to a whole pattern repeat. Count whole strips for each wall and whole strips per roll. Add the allowance, then round up the roll count.
Before you buy
For straight-match patterns or no pattern repeat. Set repeat to 0 for a random match. Drop-match patterns, niches, and uneven wall heights need a separate cutting plan. Windows and doors are not subtracted. Wallpaper paste is not included.
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Measurement and product references
Estimates use geometry and the product data you enter. Starting values are examples. Check your product label, coverage, and installation instructions before purchasing.