Wallpaper Roll Count

How to use this calculator

1. Enter required strips in count.
2. Enter roll length in m.
3. Enter cut strip length in m.
4. Select Calculate and keep the output unit with the answer.

Before you use the answer

Keep a measurement sheet separate from the purchasing allowance. Record which dimensions are internal, which openings were subtracted and which items must be bought as full packs. These are material and schedule estimates; they do not establish structural adequacy or building-code compliance.

Include trimming and pattern-repeat allowance in cut length. A roll shorter than one strip is rejected.

Does it save my inputs?

No calculation history is stored by this website. The calculator works locally in your browser. See the privacy policy for hosting and contact details.

Why might a result be approximate?

Measurement uncertainty, ideal-model assumptions and floating-point rounding can all matter. Displaying more digits does not improve the original measurement.