Wallpaper Calculator

Planning a wallpaper project doesn't have to be complicated. Our calculator removes the guesswork by instantly telling you how many panels you need—whether you're updating a single accent wall or transforming an entire room. Simply measure your walls, enter the dimensions, and get an accurate panel count in seconds. Works for both peel and stick and non-pasted wallpaper, in imperial or metric measurements.
Have questions? Check out our FAQ below!

Tip: Click images to enlarge

Frequently asked questions

How do I measure my walls?

For accurate measurements:

• Measure the height on both sides of each wall—use the taller measurement if they differ

• Measure the width at the top and bottom—use the wider measurement if they differ

• Include the full wall width, even if there are windows or doors (extra wallpaper helps with pattern matching)

• Exclude crown molding and baseboards from your measurements

How many rolls will I need?

The number depends on your wall dimensions. All our wallpaper rolls are 76cm (30 inches) wide and range from 122cm (48 inches) to 366cm (144 inches) in height. The calculator determines the best roll size for each wall and gives you the total quantity needed. We recommend ordering at least 5-10% extra to account for pattern matching, trimming, and future touch-ups. Many customers find an extra full roll provides the best buffer.

How do I use the calculator?

1. Measure your wall's height and width

2. Select your preferred units (feet/inches or centimeters)

3. Enter your dimensions into the calculator

4. The tool will show you exactly how many rolls you need

You can add multiple walls, and the calculator will total everything for you.

Does it work for accent walls?

Yes. Simply enter the dimensions of the accent wall you want to cover, and the calculator will tell you exactly how many rolls you need for that single wall.

Does the calculator work for both wallpaper types?

Yes. The calculator works the same way for peel and stick and non-pasted wallpaper. Both come in the same standard roll sizes, so your measurements and roll count will be identical regardless of which type you choose.