Wallpaper Quantity Calculator | Calculate How Many Rolls You Need


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Wallpapers often give a property a more upscale feel. And to get accurate results, the Wallpaper Quantity Calculator will be your best ally. This post will guide you on all you need to know regarding that.

It establishes the length of each cut necessary for pattern-matching wallpapers with a diagonal repeat pattern for do-it-yourselfers. Additionally, it creates the necessary number of rolls and cuts. In addition to the dimensions of the wall, you want to decorate and measure out the length and breadth of the paneling and cornice, if applicable. Then, input the number of inches specified in the package of the selected wallpaper. Follow along as we go into more detail about this below.

What is a Wallpaper Quantity Calculator?

An online tool called the wallpaper quantity calculator was created to assist your customers in calculating how many rolls of wallpaper they would need to purchase for their houses. It might be challenging for visitors to decide on wallpaper independently since it relies on the wallpaper’s length, width, wall sizes, and architecture. As a result, they often consult customer support for guidance. However, thanks to an interactive wallpaper quantity calculator, you can do it yourself!

Wallpaper Quantity Calculator

How to Calculate Wallpaper Quantity

Following these procedures will allow you to calculate the quantity of wallpaper:


Calculate the length of the wall or room perimeter you want to cover, then round that number up to the closest inch. Since 27 inches is the width of a wallpaper strip, multiply this value by 27. This tells you how many wallpaper strips or “drops” you’ll need.

Note: The quantity of wallpaper required to cover a room completely does not account for normal-sized windows and doors. Please don’t remove the entire wall space covered by their area.


Take an inch-by-inch measurement of the wall’s height, eliminating baseboards and moldings. This measurement should be adjusted by 4 inches. Then, multiply it by 36, which is the average wallpaper’s vertical repetition, and round the result up to the closest whole number. It would help if you had these many repetitions for each wallpaper strip. You can calculate the length in inches of each wallpaper strip by multiplying that number by 36. Divide the number by 12 to convert it to feet.


To get your total, multiply this final sum by the number of strips you determined in STEP 1. You should now know how many square feet of wallpaper you need to cover your area completely. Round it to the following whole number and divide it by 30, the number of feet in our wallpaper rolls. Voila! It would help if you got this many rolls of wallpaper.

Things to Consider Before Calculating Wallpaper Quantity

Some things to consider before calculating wallpaper quantity include the following:

Things to Consider Before Calculating Wallpaper Quantity

Area to be covered

We can tell you that you can gauge the height of your wall. Next, determine the width. You can choose how many panes you need from this. Divide by two if you measure in feet. You may now divide by 24 if you surveyed in inches and by 60 if you surveyed in centimeters.


When you choose wallpaper in the form of panels with predetermined dimensions, you may choose a product that fits the sizes of your wall. You may choose the 4 feet panel option if your room has lower-half woodwork and the upper three feet of the fence are wallpapered. On the other side, the 10.5 feet panel length will function better and cause minor trouble if your house has 10 feet high ceilings.

Recurring patterns

Consider a wall covering with a pattern that has a floral or geometric design. To achieve a flawless finish, you must be cautious to avoid overlapping neighboring wallpaper strips in this area. Even though it seems complicated, if you follow the vendor’s instructions with the wallpaper, you won’t have any problems.

This can also be seen in the infographics below.

Types of Wallpaper Quantity

Some Types of Wallpaper Quantity include:

Roll-style wallpaper with brick printing.

When purchasing wallpaper for your house or place of business, a roll is the most popular option. This makes it simple for you to cut your wallpaper to the precise length for your space, reducing wastage and enabling you to save money.

The process of hanging wallpaper is made more accessible by purchasing wallpaper on a roll. But one issue is that since the strips are sometimes so lengthy, it may require more work to align the sides properly.

Non-woven wall covering

Non-woven base papers aren’t genuinely made of regular paper. It does not expand when wet, and since you paste the wall instead of paste (and soak) the wallpaper, it may be more straightforward for a beginner decorator to hang it.

Frequently Asked Questions

How much m2 does a roll of wallpaper cover?

A typical American wallpaper roll covers roughly 35 square feet. On average, waste and pattern matching reduce this to approximately 27 practical square feet per roll.

How much does one roll of wallpaper do?

A regular wallpaper roll in America typically covers 35 square feet. The average, however, is around 27 usable square feet per roll due to waste and pattern fitting.

How many drops are in a 10-meter wallpaper?

By measuring the width of your wall and the elevation of your ceiling, you can establish how many drips from your wallpaper roll you may expect. The average height of the roof is around 2760mm. If so, you will receive three drops from a regular wallpaper roll 10 meters long and 53.5 centimeters wide.

How do you calculate 54 wallpapers?

13.5 square feet per yard are equal to 54 inches (54/12 = 4.5 X 3 = 13.5).

There are 2,025 square feet of wall surface to cover when 150 yards are multiplied by 13.5.

How do I calculate the square meters of a roll?

Add the width and length together. Add the two measures together once they have been translated to meters to get the area in square meters.

How many square feet is a 10×10 wall?

A room 10 feet in diameter by 10 feet long has a square footage of 100 square feet. By dividing the width (10 feet) by the length, you may get the square footage (10 ft).

How do I calculate sq ft?

Each room’s length and breadth must be determined in feet. To get the room’s square footage, multiply the width by the range. For instance: A bedroom is 240 square feet if it is 12 feet by 20 feet (12 x 20 = 240).

What is the meaning of 1 square foot?

The area is measured in square feet. It is described as the space contained by a square with sides of one foot each. The site is determined by multiplying the length by the width. Therefore, a space one foot long by one foot broad is considered one square foot.

Expert Opinion

Use the quantity calculator to determine how many rolls of wallpaper you’ll need to cover a feature wall in your home.

This wallpaper calculator may also be helpful if you’re figuring out how much wallpaper you’ll need to cover the walls in your bedroom. It will decide how many rolls of wallpaper you need to purchase. It considers some variables, including the pattern’s repetition and unique wall apertures. This further supports the notion that it was a wise decision.

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