How it works
Welcome to The Wallpaper Company's Wallpaper Calculator! Calculating the exact number of wallpaper rolls can sometimes be tricky. That’s why we’ve created this simple and user-friendly tool to make the process much easier for you. With just a few quick steps, you’ll be ready to start your project confidently.
First, measure your room’s dimensions. Carefully record the height and width of each wall. Then, enter these measurements into the calculator in centimeters (cm). To avoid mistakes, double-check your numbers before moving to the next step.
If your wallpaper has a pattern, be sure to input the pattern repeat size. This ensures that the design matches seamlessly across all walls. Without this step, you might risk having uneven patterns, which could affect the final look of your space.
Additionally, you’ll need to add the roll length and width. These details, typically found on the wallpaper label, are essential for calculating how many rolls you’ll need. Be precise to get the most accurate results from the calculator.

Once all the details are entered, the wallpaper calculator will estimate the required number of rolls. If the result includes a decimal (e.g., 4.2 rolls), remember to round up to the nearest whole number. For example, 4.2 rolls would mean ordering 5 rolls. This ensures you have enough wallpaper to finish the project without running short.
At The Wallpaper Company, we’re here to make decorating stress-free and enjoyable. Our wallpaper calculator is just one way we help you achieve beautiful results with ease.