01
Enter your room dimensions
Length, width, ceiling height, plus how many doors and windows to cut out.
Stop Guessing How Many Rolls You Need
Enter your room dimensions and get an exact wallpaper quantity, including waste, pattern repeat, and a cost estimate. Free, instant, no signup.
Your Wallpaper Calculator
Your Result
Enter your Room Dimensions
Fill in the fields to calculate rolls needed
You've Got Your Roll Count.Now Make Sure it's the Right Wallpaper.
Ordering the wrong quantity is one mistake. Ordering the wrong wallpaper is a more expensive one. Upload a photo of your room and see exactly how any style, pattern, or color looks in your actual space, with your light, your furniture, and your proportions, before you spend anything. Takes 30 seconds. Your first render is free.
See It In My Room FreeNo credit card - Try free HD render - Instant result
Ordering Wallpaper is Surprisingly Easy to Get Wrong.
Most people either order too little and can't find the same batch six weeks later, or overbuy and waste $200 on rolls they'll never use.
The problem isn't the wallpaper. It's that pattern repeats, room quirks, and waste margins aren't intuitive. A room that looks like 10 rolls often needs 14.
This calculator accounts for everything: wall area, door and window cutouts, your pattern repeat, and a sensible waste buffer. So you order right the first time.
Three Inputs.One accurate answer.
02
Add your pattern repeat
Found on your wallpaper label. If there's no repeat, enter 0. We handle the maths.
03
Get your exact roll count
Including waste-adjusted totals, cost ranges, and a breakdown you can screenshot or print.
Ordering Wallpaper is Surprisingly Easy to Get Wrong.
Most online calculators ignore pattern repeat. That's the gap between repeating elements on the wallpaper, and it means you need extra roll length to line them up correctly.
The problem isn't the wallpaper. It's that pattern repeats, room quirks, and waste margins aren't intuitive. A room that looks like 10 rolls often needs 14.
Living Room
Know Your CostBefore You Shop
The result card shows three cost ranges: budget, mid-range, and designer. So you can reality-check your budget before falling in love with a $120/roll option.
See The WallpaperIn Your Actual Room - Not Just On a Screen
Calculated rolls are only half the decision. The other half is confidence that the pattern and colour work in your room, with your light, alongside your furniture.
Upload a photo of your room and our AI will render your shortlisted wallpaper into it - realistically, in seconds.
Render My Room Free with DesignSense
Try for free ? No credit card ? 32+ design styles
DesignSense AI ? Everything You Need to Visualize Your Home Renovation
The wallpaper render is just the start. Here's what's included in your free account:
AI Room Redesign
Upload any room photo and see it transformed in 32+ styles
Virtual Staging
Furnish empty rooms with photorealistic furniture instantly
Remove Furniture
Digitally clear out old pieces before redesigning
Exterior Redesign
Visualize new paint, landscaping, and facade changes
AI Upscaling
Sharpen and enhance any room photo to 4k quality
Video Walkthrough
Animate your redesigned room into a shareable video
Common questions, answered
Yes. Just enter your ceiling dimensions as the room and set wall height to 1. The formula works the same way.
10% is standard for experienced decorators. If you're a first-timer, inexperienced with pattern matching, or your room has lots of corners or alcoves, use 15%. We default to 10% but you can adjust it.
Use our metric toggle - switch to cm/m before entering your dimensions and the calculator handles everything in metric.
It's the vertical distance between identical points in the wallpaper pattern. You'll find it on the roll label, usually marked as pattern repeat or rapport. If the label says free match or shows no number, enter 0.
Yes. It works for any room. For large commercial projects with many rooms, run each room separately and add the totals.
Because ordering the right number of rolls and ordering the right wallpaper are two different decisions. The AI render lets you preview how a wallpaper looks in your actual room - lighting, furniture, proportions - before you commit. It's free for your first render.
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Interior Aesthetics and Functionality
Midcentury modern
Modern
Tropical
Rustic
Tribal
Cyberpunk
Japanese Design
Biophilic
Art deco
Coastal
Bohemian
Scandinavian
Midcentury modern
Modern
Tropical
Rustic
Tribal
Cyberpunk
Japanese Design
Biophilic
Art deco
Coastal
Bohemian
Scandinavian
Industrial
Vintage
Baroque
Farmhouse
Minimalist
Gaming Room
Art deco
Halloween
Ski Chalet
Sketch
Scandinavian
Modern
Minimalist
Industrial
Vintage
Baroque
Farmhouse
Minimalist
Gaming Room
Art deco
Halloween
Ski Chalet
Sketch
Scandinavian
Modern
Minimalist