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AIPULY

Wallpaper Calculator

Calculate how many wallpaper rolls you need based on wall size, roll dimensions and pattern repeat.

Work out the number of wallpaper rolls and total cost needed for a room, including pattern repeat and waste.

How to use it

  1. 1Enter the total wall width and height.
  2. 2Enter the roll length, width and pattern repeat.
  3. 3Set a waste allowance and price per roll.

Wall & roll details

Enter your wall size and the wallpaper roll specifications.

m
m
m
m
m
%
Currency

Result

Rolls needed

10

Strips needed
30
Strips per roll
3
Total cost
€400.00

Pattern repeat rounds each strip up to the next full repeat length before splitting rolls.

Frequently asked questions

What is pattern repeat?
The vertical distance before a wallpaper's design repeats; larger repeats waste more paper per strip.
How much extra should I buy?
10% extra is a safe default to cover mismatches and mistakes.
Does it handle doors and windows?
Use the full wall width and height for simplicity; small openings are usually covered by the waste allowance.

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