Home/Home & Real Estate/Wallpaper Calculator

Wallpaper Calculator

0rolls needed
0drops required
0drops per roll

Plan a wallpapering job without overbuying by estimating rolls from your actual wall dimensions. Enter the total length of wall to cover and the wall height in feet, then the width and length of one roll, which for many standard rolls is about twenty one inches wide by thirty three feet long. The calculator figures how many full drops one roll yields at your ceiling height, then how many drops the room needs across its perimeter, and finally the roll count rounded up. It also adds a modest waste allowance so you have enough to match patterns at seams and trim around outlets. Doors and large windows can be subtracted by lowering the wall length you enter. Everything computes instantly in your browser so you can test different roll sizes and room shapes freely.

How to use Wallpaper Calculator

  1. Enter the total wall length and height.
  2. Enter the roll size or coverage.
  3. Read how many rolls of wallpaper you need.

Frequently asked questions

How are wallpaper rolls estimated?

It finds the wall area from length and height, then divides by the usable coverage of one roll to find how many rolls you need.

Does it allow for pattern repeat?

Roll coverage already assumes some trimming waste. Add an extra roll if your paper has a large pattern repeat that increases waste.

Should I round up rolls?

Yes. Wallpaper is sold in whole rolls, so always round up to the next full roll to avoid running short.

What is Wallpaper Calculator?

Plan a wallpapering job without overbuying by estimating rolls from your actual wall dimensions. Enter the total length of wall to cover and the wall height in feet, then the width and length of one roll, which for many standard rolls is about twenty one inches wide by thirty three feet long.

Is Wallpaper Calculator free to use?

Yes. Wallpaper Calculator is completely free, with no sign-up and no usage limits.

Does Wallpaper Calculator work in a web browser?

Yes. Wallpaper Calculator runs in any modern web browser. There is nothing to download or install.

Is my data private with Wallpaper Calculator?

Yes. Wallpaper Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.