How to Calculate Wallpaper for Your Room | A Complete Guide

Planning to upgrade your walls with wallpaper but not sure how much you need? You're not alone. "How to calculate wallpaper quantity" and "how many rolls of wallpaper do I need" are among the most searched phrases on Google when it comes to home decor. And rightfully so—ordering too much or too little wallpaper can cost you time, money, and energy.

At Walloro, we make wallpaper shopping simple, stylish, and smart. In this guide, we’ll break down the process of calculating wallpaper like a pro—no stress, no waste.

Why Measuring Wallpaper Correctly Matters

Before we get into the numbers, here’s why accurate wallpaper measurement is key:

• Prevents over-ordering and unnecessary costs

• Avoids the disappointment of running out mid-installation

• Helps account for pattern matching and wall imperfections

Step-by-Step: How to Measure for Wallpaper

1. Measure Your Walls

Use a measuring tape to find the height and width of each wall you plan to wallpaper. Write down the measurements in meters or feet.

2. Multiply Height x Width

This gives you the total square footage or square meters for one wall.

3. Add Up All the Walls

If you’re doing more than one wall, add up all the square footage. Example:

• Wall A: 8ft (height) x 10ft (width) = 80 sq ft

• Wall B: 8ft x 12ft = 96 sq ft

• Total = 176 sq ft

4. Account for Windows & Doors

Subtract the square footage of windows and doors. (A standard door is about 21 sq ft, a window is around 15 sq ft.)

5. Consider the Pattern Repeat

If your wallpaper has a pattern (like floral, geometric, or mural wallpaper), you’ll need extra material for matching. Usually, add 10–15% extra to your total.

6. Divide by Roll Coverage

Most wallpaper rolls cover about 50–56 sq ft. For metric users, one standard roll covers around 5 square meters.

Don’t Want to Measure Yourself?

At Walloro, we offer free wallpaper consultation and measurement help. Just visit www.walloro.com and contact us for expert support. You can even book a virtual appointment!

Bonus Tips for Ordering Wallpaper

• Always round up your roll count. It’s better to have a little extra than not enough.

• Buy all your rolls at once to ensure color and batch consistency.

• Keep one roll for future repairs or touch-ups.

• If you’re using peel and stick wallpaper, make sure the wall surface is clean and smooth.

Why Choose Walloro?

✅ Wide variety of textured, vinyl, and mural wallpapers

✅ Free measurement support & design tips

✅ Fast USA shipping & customer service

✅ Trusted by designers and homeowners across the country

We make transforming your walls easy, affordable, and stylish. Whether it’s your bedroom, living room, or office—we have the right wallpaper and the guidance to help you get it right.