What the tool does, how to run it, and what to expect from the result.
Wall area = perimeter × height − doors and windows: 48 × 8 − 40 = 344 sq ft. Add 15% for pattern matching and trimming and divide by the usable area of a roll: a US double roll covers about 56 sq ft, so 8 rolls. Large pattern repeats may need 20-25% extra.
A quick way to understand who this helps, what it solves, and where it connects next.
Homeowners, DIYers and contractors estimating materials before a store run.
Using the wallpaper calculator without installing anything or signing up.
Short answers for the questions people usually have before trying a utility like this.
US wallpaper is priced by the single roll (about 28 sq ft) but usually sold in double rolls (about 56 sq ft). A European roll is 0.53 × 10.05 m, about 57 sq ft.
Yes. Rolls from a different batch can differ slightly in colour.
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Enter your numbers and the result updates live in your browser. Nothing is uploaded and no server is used.
Estimates for planning; order 5-10% extra for waste and check local codes.