Wallpaper roll calculator

Full strips rounded up with straight pattern repeat; openings are not deducted. Include trimming in wall height; offset patterns need extra allowance.

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Full strips rounded up with straight pattern repeat; openings are not deducted. Include trimming in wall height; offset patterns need extra allowance.

Worked example

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Full strips rounded up with straight pattern repeat; openings are not deducted. Include trimming in wall height; offset patterns need extra allowance.

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Common uses

Full strips rounded up with straight pattern repeat; openings are not deducted. Include trimming in wall height; offset patterns need extra allowance.

BEHIND THE NUMBERS

Formula & assumptions

s=ceil(P/w); cut=repeat>0?ceil(H/repeat)×repeat:H; rolls=ceil(s/floor(L/cut))

Full strips rounded up with straight pattern repeat; openings are not deducted. Include trimming in wall height; offset patterns need extra allowance.